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Configuring and Operating a Hybrid Cloud with Microsoft Azure Stack Hub
Microsoft Configuring Study Guide
Killexams : Microsoft Configuring Study Guide - BingNews Search results Killexams : Microsoft Configuring Study Guide - BingNews Killexams : Microsoft Certification Guide: Overview and Career Paths

Microsoft is best known for its Windows operating systems and Office software. But the company has a much broader product portfolio that includes online services (Bing, MSN, advertising), gaming (Xbox 360), hardware (tablets, PCs, keyboards and mice) and more. The company also has a sizable certification program that turns out qualified administrators and technicians to support its system and application products.

Achieving IT certifications through the Microsoft Certification Program shows a person’s competence in a specific IT role, and it can result in all kinds of work-related and personal benefits. For example, studies show that IT certifications increase the chances of landing a job (or getting a promotion), and over 80 percent of hiring managers report IT certifications are medium to high priority in hiring decisions.

Microsoft certification program overview

Currently, the Microsoft Certification Program is divided into seven main categories:

  • Cloud Platform and Infrastructure: This category encompasses business intelligence, Windows Server 2016, Microsoft Azure, machine learning, cloud data platform solutions, data analytics and big data, software-defined data centers, server infrastructures, private and hybrid clouds, DevOps, and more. This is the “new mainstream” for Microsoft certification.
  • Mobility: This category is for end-user and desktop topics, including Windows 10, desktop and enterprise applications, working with System Center Configuration Manager and Intune, and planning for and managing devices in an enterprise setting.
  • Data Management and Analytics: This arena now incorporates machine learning, business intelligence, business applications, and data management and analytics, along with Microsoft SQL Server 2016 and other Microsoft database technologies. Database development is also important and includes working with Transact-SQL and developing SQL databases. Business applications include extensive coverage of Microsoft Dynamics 365 and Microsoft Dynamics AX. Data management and analytics cover a range of topics, including cloud data platform solutions, big data analytics solutions, database solutions, implementing data models and reports, and various aspects of business intelligence solutions.
  • Productivity: This category brings the Microsoft Office Specialist (MOS) credentials together with those related to Microsoft productivity offerings, such as Exchange Server, SharePoint Server and Skype for Business, as well as Office 365 identities, requirements and services.
  • App Builder: This is a development-oriented category that covers the ins and outs of using Microsoft solutions and platforms to build compatible software. courses in this category include architecting, designing, testing and building solutions around Azure, programming in HTML5 with JavaScript and CSS3, developing ASP.NET MVC Web apps, managing development throughout the entire software lifecycle, and more
  • Business Applications: This category focuses on Microsoft Dynamics 365 platforms and technologies, including Dynamics 365 for Sales, Customer Service, Marketing, Distribution and Trade, Trade, financial management (Finance and Operations), Retail, Talent, and Field Service and other focused applications.
  • Core Infrastructure: Core Infrastructure focuses on virtualization, storage, networking, system management, identity management, and modern data centers.

Certifications within the Microsoft Certification Program include the following credentials:

  • Microsoft Technology Associate (MTA)
  • Microsoft Certified Solutions Associate (MCSA)
  • Microsoft Certified Solutions Expert (MCSE)
  • Microsoft Solutions Developer (MCSD)
  • Microsoft Office Specialist (MOS)

After you pass your first qualifying Microsoft certification exam, you are deemed a Microsoft Certified Professional (MCP). MCP status provides access to a benefits and exams dashboard, with certificates and transcripts, downloadable certification logos, promotional offers and lots more. You also get the MCP designation on your Microsoft transcript. It’s important to understand that only the MCSA, MCSD and MCSE qualify as MCP certifications. Neither MTA nor MOS certifications qualify for MCP status, and none of those exams are prerequisites for MCSA, MCSE or MCSD certifications.

In addition to the certifications outlined above, Microsoft offers its MCT: Microsoft Certified Trainer and MCE: Microsoft Certified Educator credentials to those interested in teaching others about Microsoft technologies and products.

Microsoft recently released a new set of role-based certifications focused on Azure and Microsoft 365 developers, administrators, and solution architects.

Microsoft Cloud certifications

The Microsoft Cloud certification track includes MTA and MCSA credentials. Within the MTA program, there is one relevant certification: Cloud Fundamentals. To earn the MTA: Cloud Fundamentals credentials, candidates must pass a single test that validates knowledge and skills using basic Microsoft cloud services. Candidates should have experience using firewalls, network ports, Office 365, network topologies and devices, and Microsoft Intune.

The MCSA Cloud track includes BI Reporting, SQL 2016 BI Development certs, Windows Server 2012, and Windows Server 2016 credentials. The Windows Server certifications require three exams each while BI Reporting and SQL 2016 BI Development require only two exams.

Microsoft Mobility certifications

The Microsoft Mobility certification track includes MTA, MCSA and MCSE certifications. The MTA program has just one relevant certification – MTA: Mobility and Device Fundamentals. —The MTA: Mobility and Device Fundamentals certification is earned by passing a single test that attests to a candidate’s knowledge of mobility and Windows devices. Candidates should possess practical experience with Active Directory, Windows devices, Windows-based networking, network topologies and ports, firewalls, and antimalware products.

MCSA: Windows 10 is the only MCSA Mobility track credential available. Earning the MCSA: Windows 10 requires passing two exams.

The remaining credential in this track is the MCSE: Mobility. This requires earning the MCSA: Windows 10 plus passing one more exam, from a list of two possibilities that deal with Windows desktops and enterprise applications, or administering System Center Configuration Manager and Cloud Services Integration.

Both the MCSA: Mobility and MCSE: Mobility credentials retire on March 31, 2019. If earned prior to the retirement date, the credentials will continue to show as “active” certifications on your transcript. The MCSA: Windows 10 will be replaced by a new role-based credential – the Microsoft Certified: Modern Desktop Administrator Associate. Two exams are required to earn this credential. At present, no announcement has been made regarding whether the Modern Desktop Administrator Associate credential will become a prereq to the MCSE: Mobility. There’s a lot of ongoing ferment in MS certification programs right now. We expect 2019 to see major changes in MS’s cert programs and offerings. Next year’s update should be a big one!

Microsoft Data certifications

Microsoft’s Data certification track includes the MTA, MCSA and MCSE. (To see the Data track, go to the Microsoft Certification page and click Data from the Category dropdown menu.) The MTA program requires one test on database fundamentals. There are six certifications in the MCSA Data track– namely, Data Engineering with Azure, Machine Learning, SQL 2016 BI Development, SQL 2016 Database Administration, SQL 2016 Database Development, and SQL Server 2012/2014. All certs require two exams except for SQL Server 2012/2014, which requires three. The Data Engineering with Azure and Machine Learning certifications both retire on June 30, 2019.   

The MCSE Data category includes a single certification, the MCSE: Data Management and Analytics.

The prerequisite MCSAs that qualify for MCSE: Data Management and Analytics are SQL Server 2012/2014, SQL 2016 Database Administration, Database Development, BI Development, Machine Learning, BI Reporting, or Data Engineering with Azure. One additional test from a list of 13 possibilities must be passed to earn this credential. courses covered include cloud data platform solutions, big data analytics solutions, developing or designing SQL Server databases, implementing data models and reports, designing business intelligence solutions, implementing a data warehouse, developing SQL data models, analyzing big data with Microsoft R, cloud data science with Azure machine learning, data engineering with Azure HDInsight, and implementing with Azure Cosmos DB solutions.

Microsoft Productivity certifications

Certifications in the Microsoft Productivity category vary widely, from proving competency in using a single Office product to managing Office 365 services and user login credentials. This track is also fairly large; it includes an MCSA and MCSE certification as well as Microsoft Office Specialist (MOS) offerings.

The MCSA Productivity track includes a single certification – the MCSA: Office 365. Two exams are required to obtain the credential. This credential is targeted to retire on Mach 30, 2019. The MCSE: Productivity certification requires candidates possess either the MCSA Office 365, Windows Server 2012, or Windows Server 2016 credential as a prerequisite. Candidates must also pass one additional exam, from a list of eight possibilities. courses covered include Exchange Server, SharePoint Server and Skype for Business, for multiple versions of these platforms.  

Microsoft offers a MOS Office 2016 certification for each Office application (Word, Excel, PowerPoint, Outlook, Access, and Outlook). Office 2013 credentials are still available, but unless you have a specific reason for achieving them, focus on Office 2016.

The MOS 2016 Expert certification identifies individuals with advanced Office skills and requires candidates to pass two exams. The MOS 2016 Master certification is the pinnacle of the MOS Certification Program and requires successful completion of six exams.

Microsoft App Builder certifications

The Microsoft Developer certification path includes MTA, MCSA and MCSD certifications. The MTA program recognizes individuals who are entry-level software developers. The certification requires candidates to pass one of five exams. Possible courses include software development fundamentals, HTML5 app development fundamentals, and intro to programming using block-based languages, Python or JavaScript, and using HTML and CSS.

There are two credentials in the Microsoft App Builder MSCA track. The MCSA: Universal Windows Platform (UWP) credential prepares candidates to tackle professional development projects. They must pass two exams, one on programming in C#, the other on developing mobile apps. The MCSA: Web Applications credential prepares candidates for building web-based applications. They must pass two exams, one of which is required while candidates may choose from two possibilities for the second exam. All candidates must take the test relating to developing ASP.NET MVC Web applications. courses for the second test include programming in HTML5 with JavaScript and CSS3 or programming in C#.

The MCSD Developer track consists of the MCSD: App Builder certification. It requires earning either the MSCA: Web Applications or MCSA: UWP as its prerequisite, followed by your choice of one test from a list of five possible options. courses covered in include architecting and developing Azure solutions, developing Azure and web services, developing mobile apps, programming in HTML5 with JavaScript and CSS3, programming in C#, developing ASP.NET MVC Web apps, or developing MS Azure and Web services.

Microsoft Business Applications certifications

The Microsoft Business Applications certifications include MCSA and MCSE certifications. There are two MCSA options: MCSA: Microsoft Dynamics 365 and MCSA: Microsoft Dynamics 365 for Operations. Each requires passing two exams. The plain vanilla Dynamics 365 certification draws from a list of two exams, both of which are needed to meet its requirements. One test covers Dynamics 365 customer engagement online deployment, while the other covers Dynamics 365 customization and configuration. The MCSA: Microsoft Dynamics 365 credential retires on April 30, 2019.

The Dynamics 365 for Operations draws from a list of three exams, one of which is required while candidates may choose the syllabu for the second exam. courses covered include administering a Microsoft SQL database infrastructure, provisioning SQL databases, and development, extensions and deployment for Microsoft Dynamics 365 for Finance and Operations (required).

The MSCE: Business Applications credential is the sole MCSE item for this certification track. It takes either of the Microsoft Dynamics MCSAs covered in the preceding paragraph as its prerequisite, then requires candidates to pass another test drawn from a list of eight possibilities. courses covered include Microsoft Dynamics 365 for Sales, customer service, marketing, distribution and trade, trade, financial management (finance and operations), retail, talent, and field service.

Core Infrastructure

Microsoft offers a single credential focused on core infrastructure – MCSE: Core Infrastructure. The MCSE: Core Infrastructure certification validates a candidate’s knowledge and skills related to data centers, virtualization, systems management, storage, networking and identity management. The credential requires either the MCSA: Windows Server 2016 or MCSA: Windows Server 2012 as a prerequisite. In addition to the MCSA, candidates must pass a single test from seven topics. test courses include designing and implementing Cloud Data Platform solutions, designing and implementing Big Data Analytics solutions, securing Windows Server 2016, implementing software-defined datacenters, designing and implementing server infrastructures, implementing advanced server infrastructures, and configuring and operating a hybrid cloud with Microsoft Azure Stack.

Microsoft Trainer and Educator certifications

MCT: Microsoft Certified Trainer

Folks who teach others about Microsoft technologies and products should consider (and are often required to have) the Microsoft Certified Trainer (MCT) certification. The MCT can be obtained by submitting an application to Microsoft that proves that you hold a current Microsoft certification, one year of instruction experience (supporting reference required), plus verifiable instructional skills in the form of an acceptable instructor certification (such as CompTIA CTT+, Microsoft Certified Trainer Instructional Skills Certification (MCT-ISC) or IAMCT Approved Technical Trainer).

To renew, credential holders must possess at least one current Microsoft credential, meet the minimum instruction requirements of teaching at least one class, and maintain a Metrics that Matter quality score of at least seven. (Check the MCT website for a list of qualifying certifications and instructor certifications.)

As an MCT, you have access to the MCP benefits and exams dashboard, prep kits, the MCT community, Microsoft Online Labs and much more.

MCE: Microsoft Certified Educator

The Microsoft Certified Educator (MCE) credential is aimed at educators in academia, such as colleges, universities and training facilities. To become an MCE, you must demonstrate technology literacy by passing at least one exam.

The literacy competency is mapped to the UNESCO ITC Competency Framework for Teachers, Technology Literacy and includes education policy, curriculum and assessment, pedagogy, ICT/technology tools, organization and administration, and professional development.

IT professionals who earn Microsoft certification often receive extra recognition from hiring and supervising managers, and enjoy improved on-the-job success and promotion opportunities. Companies that negotiate large volume purchase or subscription agreements with Microsoft (or its partner resellers) often include funding for official curriculum training and Microsoft certification test vouchers as part of what’s covered therein.

Here are how the various Microsoft certification areas shake out, job- and career-wise:

  • A Microsoft Cloud certification is ideal for the IT professional who designs, deploys, configures and/or manages a Windows Server environment, stand-alone or cloud-based, which may include various desktops and devices. Folks who achieve this type of certification work as systems administrators, systems analysts, technical specialists (often with a platform focus such as SQL Server, Skype for Business or Exchange Server), and the like.
  • A Microsoft Mobility certification is designed for those who deploy, configure and/or manage a Windows desktop environment and related devices, whether on-premises or in the cloud. IT professionals with this type of certification usually fill positions such as help desk technicians, support personnel and systems administrators, to name a few.
  • Of late, Microsoft Productivity credentials have been gathering interest, coverage and momentum. People who pursue these certifications work with key Windows platforms such as Office, Office 365 and Microsoft Dynamics 365, which covers CRM, ERP and more. They are usually responsible for making sure that rank-and-file employees are able to work effectively and productively, and that technology provides a boost to the bottom line.
  • Microsoft Data certifications cover a lot of ground. Database design, creation and maintenance are particularly important to organizations today, considering that data storage is key to most business computing, and nearly every website is supported by one or more databases running in the background. A database administrator is in charge of all kinds of database-related functions, from development to storage and retrieval, troubleshooting and security. Now, Microsoft’s database coverage also integrates business intelligence and big data/data analytics components, too, so IT professionals interested in these subject matters will find a lot to chase down and learn here.
  • Microsoft App Builder certifications aim at application and mobile app developers who use programming languages and source code to create software. A developer may work independently or, more often, with a team, to develop, prototype, deploy, test, and modify applications for computers and many types of electronic devices. This certification portfolio also includes development for Microsoft’s cloud-based Azure environment and for software lifecycle management as well.
  • Microsoft Business Applications certifications aim at those involved with back-office, line of business systems and applications built around Microsoft Dynamics 365 (including the “for operations” version of that platform). This credential aims at those who upgrade, configure, and customize such systems as well as those who develop custom applications for specific, proprietary uses in-house or on behalf of clients. Such professionals also support customized configurations for various organizational units, including sales, field service, retail operations, finance, distribution and trade and more.
  • Trainers (MCTs) and educators (MCEs) also play a vital role in the Microsoft ecosystem as well. MCTs populate the front lines of key training for IT professionals across all of its platforms, tools and technologies with an emphasis on cultivating workplace readiness and imparting skills and knowledge suitable for on-the-job deployment. Arguably, MCEs are even more important, by helping students at all levels of education – primary, secondary and beyond – to understand and make the most of Microsoft tools, technologies, platforms, and development environments.

Training and certification preparation materials

Microsoft offers training to candidates directly, both in the classroom and online. The company’s Microsoft Virtual Academy (MVA) is a great place to start poking around: it offers a huge range of free training courses, many of them at least relevant to various certification courses if not directly focused on such topics.

There’s also a huge aftermarket for Microsoft training, self-study and certification preparation. Pearson operates Microsoft Press on Microsoft’s behalf, where you can find self-study guides for all the popular Microsoft cert exams (and many of the not-so-popular exams as well). Pearson’s IT Certification imprint (online at also offers study guides, test crams (a series I invented), practice tests, video training materials and much more for Microsoft certification candidates. Wiley/Sybex and Osborne/McGraw-Hill also offer certification focused imprints, book series and generally provide good coverage of major cert courses as well, also including most popular Microsoft certifications and related exams. Pearson’s mindhub online store also offers “official” practice questions approved by Microsoft.

There’s a wealth of excellent material available to help candidates prepare. Look to online and peer reviews, study groups and rating sites to separate the wheat from the chaff.

Tue, 28 Jun 2022 12:00:00 -0500 en text/html
Killexams : How to perform Regression Analysis in Windows 11/10

Here is a guide for you to perform Regression Analysis on your Windows 11/10 PC. Regression Analysis is a statistical technique use to evaluate a set of data. It is used for determining the relationship between a set of two or more variables in a dataset. It basically enables you to analyze the important and unimportant factors from a dataset and then make a decision accordingly. Now, if you want to perform a regression analysis without performing manual calculations, this post will help you.

In this article, we are going to discuss different ways to do regression analysis on Windows 11/10 PC. You don’t need to do anything manually. Just import your dataset, select input variables, and visualize the results. Using the mentioned methods, you can perform linear, non-linear, multiple, and more regression analyses. Let us check out the methods in detail now!

How do you perform a Regression Analysis?

Regression analysis can be performed using Excel in Windows 11/10. You can also use a third-party free software that lets you calculate regression analysis. Additionally, you can even perform regression analysis online with the help of a dedicated free website. We have discussed all these methods in detail below. So, let us checkout!

How do I do Regression Analysis in Excel?

You can easily perform a regression analysis in Excel and other editions by enabling an add-in. This add-on is called Data Analysis ToolPak which is preinstalled in Microsoft Excel. Just follow the simple steps to enable this add-in in Excel and then you will be able to perform several data analyses. We have discussed step by step procedure to do regression analysis in Microsoft Excel. You can check it out below.

Related read: What is Data Analytics and what is it used for?

Here are the methods that you can use to perform a Regression Analysis on your datasets in Windows 11/10:

  1. Perform a regression analysis in Microsoft Excel.
  2. Use JASP or Statcato freeware to perform regression analysis.
  3. Perform regression analysis online using a free web service.

Let us discuss the above methods in detail!

1] Perform a Regression Analysis in Microsoft Excel

You can perform a regression analysis using the Microsoft Excel application. A dedicated Data Analysis ToolPak add-on in Excel lets you perform regression analysis and some other data analysis. You will have to manually enable this add-in to use its functionalities. Let us have a look at the procedure to use Excel’s Data Analysis ToolPak add-in for regression analysis.

How to perform a Regression Analysis in Microsoft Excel:

Here are the main steps to do regression analysis in Microsoft Excel:

  1. Launch the Microsoft Excel app.
  2. Go to the File > Options > Add-ins tab.
  3. Click on the Go button.
  4. Enable the Data Analysis ToolPak add-in and go back to Excel’s home screen.
  5. Import your datasets and select input data with dependent and independent variables.
  6. Move to the Data tab.
  7. Press the Data Analysis button.
  8. Select Regression and hit the OK button.
  9. Enter input X and Y range and other output options.
  10. Tap on the OK button to view regression analysis results.

Let us discuss the above steps in detail now.

Firstly, launch the Microsoft Excel app and then enable the Data Analysis ToolPak add-in. For that, click on File > Options and go to the Add-ins tab. Here, click on the Go button present beside the Manage Excel Add-ins option. Then, select the Data Analysis ToolPak add-in checkbox and press the OK button to enable it.

Now, import your datasets from an Excel or any other supported file, or you can create a new dataset. Select the input data fields for which you want to perform regression analysis.

Next, go to the Data tab and then click on the Data Analysis button.

After that, select the Regression option from the available Data Analysis tools and click on the OK button.

Then, you need to enter the input X (independent variable) and Y (dependent variable) range for which you want to do regression analysis. Apart from that, you can also select residuals options like standardized residuals, line fit plots, residual plots, etc. Also, some other options like normal probability, confidence level, label, etc.

See: How to view and track Excel workbook statistics.

How to perform Regression Analysis in Windows

Configure all the above options and press the OK button to visualize the results.

It shows regression statistics including coefficient, standard error, t Stat, P-value, significance F, multiple R, standard error, observations, degrees of freedom, sum of squares, mean squares, F value, and more.

You can save the results in the same Excel worksheet or print the results.

Similarly, you can also perform analysis including ANOVA tests, covariance, descriptive statistics, exponential smoothing, Fourier analysis, histogram, moving average, sampling, t-test, etc.

Read: How to use the DATEVALUE function in Microsoft Excel

2] Use JASP freeware to perform Regression Analysis

You can use third-party freeware to perform regression analysis on a set of data. There are several free software that let you do data analysis. Here, we are going to use free software called JASP and Statcato. Using these two free software, you can perform regression analysis and many other data analyses:

  1. JASP
  2. Statcato


JASP is a dedicated free statistical analysis software for Windows 11/10. Using it, you can perform regression analysis, descriptives tests, T-tests, ANOVA, frequency tests, principal component analysis, exploratory factor analysis, meta analysis, summary statistics, SEM, visual modeling, and confirmatory factor analysis. It offers a dedicated Regression where you can perform linear, correlation, and logistic regression analysis. Let us find out how.

Here are the main steps to do regression analysis in JASP:

  1. Download and install JASP.
  2. Launch the software.
  3. Import your dataset.
  4. Go to the Regression tab.
  5. Choose Classical or Bayesian regression type.
  6. Select dependent and independent variables and customize other parameters.
  7. View and export the results.

Let us now elaborate on the above steps!

Firstly, you need to download and install JASP freeware on your PC. And then, launch the main GUI of this software.

Now, go to the three-bar menu and click on the Open option to import datasets from locally saved Excel, CSV, TSV, ODS, TXT, etc. You can also import your input data from your OSF (Open Science Framework) account. Apart from that, it comes with several sample datasets that you can utilize in your study and analyses.

Next, move to the Regression tab and select the type of regression analysis you want to perform like Logistic, Linear, or Correlation.

After that, select dependent and independent variables and then configure multiple other options like method, WLS weight, model, method specification or criteria, and more. You can also select the values that you want to compute in the regression analysis, such as Residuals, R squared change, Covariance matrix, Collinearility diagnostics, Part and partial correlations, Model fit, and more. Also, you can plot various graphs with calculated regression analysis statistics including Residuals v/s dependent, Residuals v/s covariates, Residuals v/s histogram, and some other graphs.

As you configure all the above-discussed parameters, it displays regression analysis in the right-side section. You can export the results of regression analysis to an HTML or PDF document.

It is one of the best free software to perform regression analysis and more. You can download this handy freeware from

See: What is Data Mining? Basics and its Techniques?

2] Statcato

Another freeware that you can try to perform regression analysis is Statcato. It is a free and open-source software to perform statistical analyses. It allows you to perform regression analysis as well as several other types of data analyses. Some of the data analysis methods provided in it include Hypothesis Tests, ANOVA, Descriptive Statistics, Normality Tests, sample Size, Non-parametric Tests, and more.

It lets you perform Linear Regression, Multiple Regression, Correlation Matrix, Non-Linear Regression, etc. Let us check out how to use this software.

These are the main steps to perform a regression analysis in Statcato:

  1. Download this software.
  2. Launch the Jar file.
  3. Import or create an input dataset.
  4. Go to the Statistics menu.
  5. Click on the Correlation and Regression option.
  6. Select the desired regression type.
  7. Choose dependent and independent variables.
  8. View and save regression analysis.

Let us discuss the above steps in detail now!

Firstly, you need to download this free software from Then, unzip the downloaded zip folder and then run the executable Jar file. You need to have Java installed on your system to use this application.

Now, open a file containing the input dataset or you can also create a new set of data in its spreadsheet-like interface.

Next, go to the Statistics menu and click on the Correlation and Regression option and then select the type of regression analysis you want to perform.

After that, choose the independent and dependent variable for which you want to do regression analysis and set up other options. Then, press the OK button.

It will display the regression analysis results in a dedicated window.

The regression analysis mainly includes statistics like regression equation, Explained variation, Unexplained variation, Coefficient of determination, Standard error of estimate, Test statistics, p-value, and more.

You can copy the results or take a printout.

It is another good statistical analysis software that lets you calculate various statistics, perform data analysis, and plot different kinds of graphs.

Read: x

3] Perform Regression Analysis online using a free web service

You can also perform regression analysis online using a dedicated free web service. Here, we are going to use this web service called It lets you perform Linear and Multiple regression analyses online. Apart from that, you can also find other statistical tools on this website like ANOVA tests, Chi-Square Calculator, Sign Test Calculator, Standard Error Calculator, T-tests, and more.

How to perform regression analysis online:

Here are the main steps to perform regression analysis online using

  1. Open a web browser.
  2. Navigate to the website.
  3. Go to the regression calculator page.
  4. Enter values for dependent and independent variables.
  5. Tap on the Calculate the Regression Equation option.

Firstly, launch a web browser and open Now, you need to navigate to the Multiple Regression Calculator or Linear Regression Calculator page, whichever regression analysis technique you want to use.

Next, enter the respective input values in the X (independent) and Y (dependent) columns. You can also enter estimate values.

After that, click on the Calculate the Regression Equation option.

It will then display the regression analysis results in the same window.

The regression analysis results include a graph, regression equation, sum of squares, the sum of products, mean values, and more.

That’s it! Hope this guide helps you find a suitable method to perform a regression analysis for your datasets on Windows 11/10.

Now read:

How to perform Regression Analysis in Windows
Wed, 25 Aug 2021 04:22:00 -0500 en-us text/html
Killexams : How to check Computer Health in Windows 11/10

Our PC should be in the best possible state to perform better. There are PC health checkup tools that can help you find problems and fix them easily to better your PC’s performance. In this guide, we show you different ways to check Computer Health in Windows 11/10.

How to check Computer Health in Windows 11/10

You can check Computer Health in Windows 11/10 in the following ways:

  1. Using the PC Health Check app
  2. Using Windows Security
  3. Generate a WiFi History or WLAN Report
  4. Using Performance Monitor
  5.  Using SleepStudy tool

Let’s get into the details of each one.

1] Using the PC Health Check app

PC Health Checkup

Microsoft introduced the PC Health Check app when it announced the Windows 11. It is installed through updates automatically. If not, you can download it from Microsoft. It was introduced to check if your Windows 10 PC is compatible to run Windows 11 or not. Along with the compatibility check, it provides the data on your PC health. If already installed search for PC Health Check up in the Start menu and run it.

Read: How to test Hard Drive speed or check up Hard Disk Health on a Windows computer.

2] Using Windows Security

PC Health Windows Security

The other way to check the health of your PC is through the Windows Security app on your PC. It has a ‘Device performance and health’ option to do so.

To check your Windows PC health using Windows Security,

  • Search for Windows Security in the Start menu and launch it.
  • Click on the Device performance and health tab on the left side.
  • Then, it will check the health of your PC and show the status.

The health report it shows covers Storage Capacity which shows the status of disk space for important tasks such as Windows updates, Battery life, Apps and software, and Windows Time service.

Read: What is Windows Device Performance & Health section?

3] Check WiFi Network Health


Create a WLAN Report or Wi-Fi Network Adapter Report

To generate a WiFi History or WLAN Report, you will first need to launch a Command Prompt, to begin with. Search for ‘cmd’ and then right-click on what appears. Choose “Run as Administrator“. Now, you need to enter the following command:

netsh wlan show wlanreport

Press Enter and the system will generate the report in an HTML format.

You will be able to view the report here in File Explorer:


The ProgramData folder is a hidden folder, and if you want to access it, you will have to click on the ‘View’ tab and click to tick mark on “Hidden items“.

Clicking on the HTML report file will make it open in your browser.

You can now see the connectivity details of the last three days of your WiFi usage. The red circle indicates an error. Selecting it gives you more info about the error. It is an interactive report and moving the mouse cursor will supply you more information about the item.

Read: Free software to monitor System Performance & Resources

4] Using Performance Monitor

Performance monitor

The Performance Monitor comes built-in on Windows. It lets you monitor and study how applications are running on your PC. Using this Performance Monitor, you can check the health of your PC.

To check the health of your PC by using the Performance Monitor:

  • Click on the Start menu and type Performance Monitor.
  •  On the Performance Monitor window, expand Data Collector Sets and then System
  • Right-click on System Diagnostics as well as System Performance and select Start
  • It will generate the reports that you can access in the Reports section of the Performance Monitor under the dates on which they are generated.

Read: How to Run Computer Performance Benchmark Test on Windows?

 5] Using SleepStudy tool

The SleepStudy tool provides first-level information about the causes of the activities that occur during the modern standby session. Each SleepStudy report concludes with the information on system battery configuration along with the name and manufacturer.

To run SleepStudy-

  • Open Command Prompt as an administrator from the Start menu
  • Type powercfg.exe /SleepStudy and press Enter
  • The built-in powercfg.exe command-line tool will run and creates an HTML file named Sleepstudy-report.html.
  • You can check your PC health on that HTML page.

These are the different methods using which you can check the health of your Windows PC or laptop.

Now read: Tips to maintain Windows in good running condition

How can I check the condition of my laptop?

You can check the condition of your laptop using Microsoft’s PC Health Checkup tool, Performance Monitor, Windows Security, or the SleepStudy. Any of these tools can supply you information regarding your PC status, battery health, storage status, etc.

Read: How to check the health of laptop battery.

How do I open Health check in Windows 11/10?

On the Microsoft Windows 11 web page, there is a PC Health Checkup tool available to download and check the compatibility of your PC with Windows 11. You need to download and run it to check your PC’s health on Windows 11/10.

Also read: Things that can damage your Computer and shorten its life.

Check PC health
Sun, 03 Jul 2022 05:20:00 -0500 en-us text/html
Killexams : Get 15 CompTIA Study Prep Courses for $50

If you work in information technology, or are considering entering the industry, you have to be flexible. Skills like software engineering, in demand in 2022, may not be as valuable in 10 years—much like how single technology expertise and STEM degrees are fading out of the norm.

Many companies now hire based on measurable skills rather than a piece of paper; a college degree could illustrate how well you’ll perform in the workplace, but a professional certification is hot commodity when you're aiming for a specialized industry like IT. For example, earning the proper CompTIA credentials suggests to recruiters that you understand the technology their businesses need to operate.

Enter The Complete 2022 CompTIA Certification Course Super Bundle, featuring 15 courses to guide you through entry-level to advanced certifications. And it’s on sale for $49.99.

This training packs more than 400 hours of CompTIA certification prep—from Fundamentals+ to Cloud+ and CASP+—compiled by iCollege, an e-learning marketplace and official CompTIA trusted partner. Courses themselves are provided by ITProTV, which presents lessons in a “talk show” format to keep the material engaging.

If you’re new to IT, there are two courses you should focus on: Fundamentals+ and A+, which cover the FC0-U61, 220-1001, and 220-1002 exams. Acing these exams and earning these certifications endorses your expertise in configuring hardware and operating systems, and proves you have a working knowledge of IT infrastructure, troubleshooting, networking, virtualization, and more. 

After getting some real-world IT experience under your belt, tackle the Network+ and Security+ courses, which introduce the cybersecurity landscape and show how to respond to various network threats. Then, specialize in the area of IT that interests you most. Want to dive deeper into cybersecurity? Pursue CySA+ and its subsequent certifications; alternatively, you can aim for Linux+ and Server+, if cloud computing intrigues you.

The Complete 2022 CompTIA Certification Course Super Bundle is a comprehensive collection that can teach you skills to stay relevant in the IT world. Through July 14, PCMag readers can get this 15-course training for $49.99—98% off the $4,425 MSRP.

Prices subject to change.

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Mon, 11 Jul 2022 00:22:00 -0500 en text/html
Killexams : Risk Disconnect in the Cloud

Cloud adoption may be hopping, but many enterprises still wrestle with how to identify and manage their security risks with these services.

A new study conducted by the Cloud Security Alliance (CSA) and Google Cloud underscores that while the cloud ideally could help bolster security for organizations, many aren't adeptly handling their risk management in the cloud just yet. 

"Organizations are not taking advantage as aggressively of the capabilities to have a more secure environment" with cloud, says Jim Reavis, CEO of the CSA. "They're not being as proactive in monitoring and managing risk."

Interestingly, it appears many organizations may not know for sure the extent of their cloud adoption. Some 51% say that they now run 41% of their workloads in the public cloud, but it turns out most of them (85%) are not using cloud discovery tools to quantify that but, rather, estimating their use via manual methods. Those who use discovery tools including a cloud access security broker, or CASB (15%), to map their cloud workloads report 31% more cloud usage than those who performed manual assessments — a clue that most organizations relying on manual tracking don't have a complete inventory of what's running in their cloud services, according to the study.

"You can't manage the risk of things you don't know about. The basic things lead to either breaches or data exposure, exfiltration, or a ransomware attack if you are not keeping your cloud assets updated and there are gaps in your usage of cloud," Reavis notes. But the cloud offers a better way to manage assets, he says, than traditional IT networks.

“There are tools there," and automated ways to detect and secure cloud assets, he says.

The study confirms a significant rise in cloud adoption. The average number of software-as-a-service (SaaS), platform-as-a-service (PaaS), and infrastructure-as-a-service (IaaS) services used by organizations was more than 147, up from 38 in 2020. Some 66% of organizations say they have 100 or fewer services; 32%, from 101 to 999; and 3%, 1,000 or more services.

The most commonly used infrastructure-as-a-service (IaaS) cloud platform is Azure (70%), followed closely by AWS (65%), and then Google Cloud at 24%, according to the study.

"Enterprises interviewed intend on increasing their workloads in the cloud over the next 12 months. With enterprises continuing to add production in the cloud and using more cloud services, managing cloud and digital assets will be critical in the management and measurement of risk in the cloud," according to the report.

The goal of the study was to gauge organizations' challenges of risk management in public cloud services, and Google and the CSA gathered survey data as well as interviews in 2021 with 600 IT and security professionals.

While the cloud is becoming more pervasive for IT operations, there has not been a correlation or increase in data breaches, Reavis notes.

To date, nearly all publicly disclosed breaches in the cloud have stemmed from misconfigurations, not cyberattacks, says Phil Venables, CISO at Google Cloud. "To prevent and address the risk of misconfigurations and compliance violations earlier in the development process, security leaders have started to embrace security as code to achieve the speed and agility of DevOps, reduce risk, and more securely create value in the cloud," Venables says.

For its part, Google offers a series of blueprints for its customers to help avoid misconfigurations and other cloud mistakes, such as its Risk and Compliance as Code (RCaC), Secure Foundations guide, and Cloud Architecture Center, for example.

"Blueprints help our customers rapidly configure cloud environments in a secure and compliant manner," notes Venables. "And ultimately, this level of secure hygiene helps prevent misconfigurations becoming a security risk or attacker entry point to cloud workloads."

According to the report, some 70% of organizations in the study say they don't have solid processes for mapping risk to their cloud assets. A tiny percentage — 4% — report that they have "highly effective" risk management in the cloud. Slightly more than 20% use cloud data-classification tools.

Meanwhile, the main security worries over applications in the cloud include loss of sensitive data (64%), improper configuration and security settings (51%), and unauthorized access (51%).

Wed, 22 Jun 2022 01:53:00 -0500 en text/html
Killexams : Best Prime Day deals 2022: Live roundup of the best laptop, PC, and Xbox offers


Acer XFA240

(Image credit: Future)

Save up to 20% on ASUS PC parts and components at Amazon

ASUS is best known for its PC hardware, making components like motherboards, graphics, and power supplies, all crucial to build a PC. Prime Day has introduced sizeable savings on various ASUS components, with up to 20% off key parts of what could be your dream PC. The coming two days could be an ideal opportunity to invest in your next PC build, dropping parts from reputable brands to some of their lowest-ever prices.

Razer Blade

(Image credit: Future)

Save up to 60% on Razer PCs, headphones, and peripherals at Amazon

Gaming peripherals maker Razer has discounted dozens of its best-rated products this Prime Day, with up to 60% off popular laptops, headphones, and PC gaming accessories. Deals include popular picks like the slimline Razer Book 13, best-selling keyboards like the BlackWidow and Huntsman series, and the Basilisk mouse family. We’ve rounded up some of the best Razer gaming deals this Prime Day, rounding up an extensive list of price cuts on Razer products this week.

Xbox Series X|S Seagate Storage Expansion Card

(Image credit: Matt Brown | Future)

Xbox X|S storage expansion card | £164.99 (was £254.99)

The Xbox Seagate Storage Expansion Card is the most seamless way to get more storage for the best Xbox games. The card supports the same SSD speeds and technology featured inside the Xbox Series X and Xbox Series S, so you won't see any dropoff in performance from titles storage on the external drive. Right now, you can get the Seagate Expansion Card for the Xbox Series X or S for £164.99, which is down from the normally high cost of £254.99. Our Seagate Xbox Storage Expansion Card review provides more insight that should help you decide if the SSD is right for you.

Razer Turret mouse and keyboard for Xbox

(Image credit: Future)

Razer Turret | $169 (was $250) 

Gaming with a mouse and keyboard on Xbox consoles hasn't always been easy. That changed with the Razer Turret and other Xbox Series X and S keyboards rolled out. The Razer Turret features a retractable magnetic mouse mat and an ergonomic wrist rest to make it comfortable for use on a lap. It even has a dedicated Xbox key to summon the Xbox dashboard. On Prime Day, you can pick up the Razer Turret for 40% off, which brings it down to $150. If you're looking to play some  Xbox mouse and keyboard games, this deal is worth checking out.

Microsoft Surface Pro 8 with keyboard

(Image credit: Future)

Surface Pro 8|£850 off (UK)

The Surface Pro 8 is Microsoft's flagship 2-in-1. It features a 13-inch PixelSense display and runs on an 11th Gen Intel Core paired with Intel Iris Xe graphics. The Surface Pro was the device that kicked off the convertible PC trend over ten years ago, and Microsoft has had a decade to refine the design, which shows. In our Surface Pro 8 review, our executive editor called the device "basically perfect." Right now, you can save up £350 on the Surface Pro 8 during Prime Day. There are discounts on all models, but the bigger bargains are on the models with 128GB or 256GB of storage.

ASUS ROG Maximus Z690 Hero

(Image credit: Future)

ASUS PC parts | up to $100 off

Amazon Prime Day is an excellent time to purchase parts for building your own PC or upgrading your system. There are sales on power supplies, Wi-Fi cards, and more throughout the event. ASUS has discounts of up to 20% off on various parts at the moment, offering savings of up to $100.

razer kraken kitty v2

(Image credit: Razer)

Razer Kraken Kitty | $124.20 (was $150)

Razer makes some of the best gaming headsets, and some of those devices even let you look like an adorable kitty cat. The Razer Kraken Kitty V2 features two built-in cat ears on a pink frame. Don't let the adorable headset fool you, it isn't just for looks. The Razer Kraken V2 has 7.1 surround sound and an in-line digital audio controller. On Amazon Prime Day, you can pick up the kitty version fo $124.20, which is $25 off its normal price. Earlier during the event, the headset was discounted by $50, so if you're interested, it's best to act quickly.

Halo Infinite co-op.

(Image credit: Xbox Game Studios)

Halo Infinite | $34.99 (was $59.99)

The latest entry of the Halo franchise may not be infinitely discounted, but you can save 42% on the title during Prime Day. A digital code for the Standard Edition of Halo Infinite is down to $35 (normally $59.99). As the latest entry to the Halo saga, Halo Infinite features tight gunplay, new weapons, and a grappling hook mechanic. The semi-open world of the game also provides new avenues for exploration.

NVIDIA GeForce RTX 3080

(Image credit: Future)

Discounted graphics cards on Prime Day from AMD or NVIDIA 

GPU prices have ballooned during the global chip shortage, so you're not going to save a ton on the best graphics cards on Prime Day. That being said, you're able to pick some up for around MSRP, which would have been unheard of a few months ago. We rounded up the best NVIDIA RTX 30 series and AMD Radeon 6000 series deals and will update it throughout Prime Day. 

Surface Laptop 4 sitting in dramatic lighting, partially opened on a table.

(Image credit: Daniel Rubino / Windows Central)

Surface Laptop 4 | 25% off

While Microsoft's Surface family of devices is best known for flipping and folding, some people want a traditional laptop. In comes the Surface Laptop 4, which sits near the top of the best Windows laptops. It has a 13.5-inch PixelSense display, an Alcantara keyboard deck, and a clamshell design that many people prefer. Right now, you can snag a Surface Laptop 4 for as low as $899 through Amazon. The most affordable model features an AMD Ryzen 4000 series chip, 256GB of storage, and 16GB of RAM.

Surface Laptop Studio Movies & TV

(Image credit: Windows Central)

Surface Laptop Studio | up to $700 off

Microsoft's Surface Laptop Studio is its most powerful Surface PC to date. For Prime Day, you can get a model with 32GB of RAM, 1TB of storage, and an Intel Core i7 processor for $700 off, which brings its price down to $2,123. In addition to its powerful specs, the Surface Laptop Studio stands out as a unique convertible PC. Its display can pop into different postures, allowing you to use the device at a variety of angles. There are also discounts on versions with lower specs, but stock can vary.

Surface Duo 2020

(Image credit: Future)

Original Microsoft Surface Duo | Down to $400

Microsoft's Surface Duo is a unique little device that features a pair of displays. With those dual screens, you can run two apps side-by-side or span apps across the entire device. The original Duo is getting a bit long in the tooth at this point, but it's a great option as a secondary device or for those that want to try out its form factor. Today, Amazon has a Prime Day deal on Surface Duo that discounts the device to just $400. That's just under $60 off its retail price these days.

Razer DeathAdder V2 Pro wireless gaming mouse

(Image credit: Windows Central)

Razer DeathAdder V2 Pro | $35 off

Razer's DeathAdder V2 Pro is a highly reviewed gaming mouse that builds on a long legacy of mice from Razer. It earned a 4.5 out of 5 in our DeathAdder V2 Pro review a couple of years back, and it still stands up well against the best gaming mice. On Amazon Prime Day, you can save $35 on the DeathAdder V2 Pro gaming mouse, dropping it down to just a penny under $55. The gaming mouse offers up to 70 hours of battery life and has low latency, thanks to its HyperSpeed technology.

Logitech G915 Lightspeed Hero

(Image credit: Daniel Thorp-Lancaster)

Logitech G915 LIGHTSPEED keyboard | 50% off!

The Logitech G915 Lightspeed is still one of our favorite gaming keyboards, and it's definitely worth checking out at over $100 off its usual price tag. This keyboard features a super low-profile design with mechanical keys, macro buttons, and the option to switch between Logitech's own Lightspeed tech or Bluetooth on the fly. Most importantly, it's a dream to type on with its clicky, low action feel. It's right up there with some of the best gaming keyboards around.

Razer Seiren X USB mic

(Image credit: Amazon)

Razer Seiren X | $55 (was $99)

Look, you don't need us to tell you that Razer makes some of the best PC gaming accessories around. That even includes its more budget-friendly ones, like the Razer Seiren X, which is down to $55 for Prime Day. That's its cheapest price ever, and $10 lower than the last low it hit. If you're in the market for a nice, budget-friendly PC mic, then this is the one to grab.

Corsair iCUE 5000X RGB

(Image credit: Corsair)

Build your own PC for $1100 with Prime Day savings!

Looking to build your own gaming PC or upgrade an existing one? Amazon Prime Day is a terrific time to save on PC components. If you're starting from scratch, we'll help you navigate Prime Day to find deals that will allow you to build a powerful gaming PC that costs a little more than $1,000

For that price, your new battle station will come with a 12th Gen Intel processor and powerful Nvidia GeForce RTX 3060 graphics wrapped in an attractive case. 

Once you've selected your components on discount, be sure to check out our guide on how to actually build your PC

Dell 240Hz gaming monitor

(Image credit: Amazon)

Dell 240Hz monitor | $200 (was $320)

Got a need for speed? Dell's S2522HG is at a historically low price this Amazon Prime Day. This monitor has a zippy 240Hz refresh rate, making it a great companion for anyone playing fast-paced, action-packed games. At $200, you're getting a 24-inch IPS panel with a 1080p resolution, 1ms response time, and an integrated USB hub. Perfect for college students on a budget, gamers, or anyone who needs a new monitor. 

Sony WH1000XM4 Lifestyle

(Image credit: Sony)

Save up to 35% on some of Sony's best noise-canceling headphones!

Keep the noise out while you work, study, or game with Sony's wireless headphones and earbuds. The highly coveted Sony WH-1000XM4 headphones come with some of the best active noise-canceling (ANC) technology to help silence the world around you to keep you focused on the task that matters. These headphones are now 35% off for Prime Day, taking them down to just $228 from a retail price of $348!

And if you need something smaller and more portable, Sony's WF-1000XM4 offer impressive noise cancelation in earbud packaging. Now at $198, these compact AirPods Pro rivals are now 30% off the regular $279 price tag for Prime Day. 

Far Cry 6 promo screenshot

(Image credit: Ubisoft)

Far Cry 6 | 78% off!

The latest title in Ubisoft's Far Cry series is enjoying a massive discount for Amazon Prime Day. Far Cry 6 now costs just $12.99 for Xbox One

Far Cry 6 is a guerilla shooter that tasks players to overthrow a corrupt government on a fictional tropical island. Fight through jungles and across mountains in a variety of vehicles with makeshift weapons, and liberate the people of Yara. 

Xbox Series X and Series S with controllers

(Image credit: Future)

Xbox Series S | $250 (was $300)

Through Woot's special Prime Day promo, you can now Microsoft's Xbox Series S console for just $250. This means you'll save $50 off of the gaming console's list price of $50. With the money saved, be sure to check out some other deals in this hub to spruce up your gaming experience, like the Razer Turret for Xbox, Seagate's Xbox Storage Expansion, or a new game like Far Cry 6! All these items are on sale with steep discounts for Prime Day, so act fast!

BenQ Mobiuz EX3415R

(Image credit: Cale Hunt | Windows Central)

BenQ's UWQHD gaming monitor | $500 ($630)

If you have your eyes on an ultra-wide monitor for your next screen, you may want to check out BenQ's UWQHD Mobiuz display, which is now on sale for $500, or a $130 discount from the $630 list price.

The monitor is well equipped for gaming with AMD FreeSync support, 144Hz refresh rate, and VESA DisplayHDR 400 certification that allows it to reach 400 nits of brightness. 

The Logitech G920 Racing Wheel.

(Image credit: Logitech)

Shift into higher gear with a 37% discount on Logitech's racing wheel

Racers, start your engines! If you're a fan of racing games, you can save 37% off of Logitech's G920 racing wheel. Normally priced at $299, you'll be able to enjoy a $110 discount, which takes the price down to just $189. The racing wheel, along with the pedals, is made to work with Xbox and PCs, so you can switch between desktop, laptop, and console.

TP-Link Deco X55

(Image credit: TP-Link)

Kiss goodbye to Wi-Fi connectivity problems with $80 off of TP-Link Deco X55 mesh network

If you're experiencing drops in Wi-Fi coverage at home, a mesh network could be the ticket to solving your wireless woes. TP-Link has an awesome deal for its Deco X55 mesh network. Priced at $200 for Prime Day, you'll enjoy a hefty $80 discount on this three-pack mesh router. 

Sea of Thieves promo screenshot

(Image credit: Xbox Game Studios)

Scored a new PC or Xbox for Prime Day? Add Sea of Thieves game. 

If you scored a new PC or Xbox for Prime Day, you can also find some hefty discounts on games. One title, Sea of Thieves, is now 50% off for Amazon's sale-a-thon for $20. The title works on both PC and Xbox. Sea of Thieves is a massive multiplayer pirate adventure game. 

The Dell XPS 13 9315.

(Image credit: Dell)

Save nearly $600 on Dell's popular XPS 13 laptop!

Dell's XPS 13 is one of the most popular Windows laptops on the market today with its stylish design, powerful performance, and thin-and-light form factor. Though the steep discount on the XPS 13 isn't on Amazon, you'll find this laptop deal on Dell's website, which takes the price of the notebook down to just $1,028.

At this price, you're getting an 11th Gen Intel Core i7 processor, 8GB of RAM, 512GB SSD, and a 13.3-inch UHD 4K touchscreen display. 

Surface Pro 8 front with Type Cover

(Image credit: Future)

Microsoft's Surface Pro 8 gets a nearly 30% discount on Prime Day

Microsoft's Surface Pro helped to popularize the hybrid tablet-laptop form factor with its iconic kickstand design, and now the eighth generation tablet is getting a big discount. If you're in the market for a new Surface Pro, you can find the Surface Pro 8 at a $412 discount on Amazon Prime, bringing the price down to just $1,187 for an Intel Core i7 configuration with a 256GB SSD. 

If you do get the Surface Pro 8, remember to add a keyboard cover as well. 

CyberPowerPC Gamer Xtreme

(Image credit: CyberPowerPC)

Save up to 27% on pre-built PCs from CyberPowerPC

Jumping into PC gaming can be overwhelming, especially for those that have never built a system before. While Prime Day is a great day to pick up parts, it's also the perfect time to purchase a pre-built PC. CyberPowerPC has discounts of up to 27% on a range of gaming rigs, including the budget-friendly GamerXtreme i3-12100F RX 6500XT (what a name) and the powerful GamerXtreme i9-12900KF RTX 3070.

Synology DiskStation DS220+

(Image credit: Future)

Synology Prime Day deals slash up to $100 off the best NAS servers

NAS servers allow you to create a private media center, personal cloud, or storage system for surveillance. One of the main drawbacks of NAS servers is that they can be pricey. Amazon Prime Day and Synology are here to help with that problem. Right now, you can save up to $100 on some of the best NAS servers for home. The Synology DiskStatin DS220j (the two-bay model) is $30 off, bringing its price to $190. On the higher end of things, the Synology 4 bay NAS DiskStation DS920+ is down to $450 from its normal price of $550.

Surface Earbuds Reveal

(Image credit: Future)

Listen up: Surface Earbuds are half price for Prime Day

Microsoft's Surface Earbuds feature round touch — ahem — surfaces for controlling audio and calls. They come in a convenient carrying case that delivers an extra eight hours of battery life. They even integrate with Microsoft Office. So what's the drawback? Normally their price. But that's not the case today, as the Surface Earbuds are $99 for Amazon Prime Day. That's $100 off the normal retail price and enough of a discount to make the Surface Earbuds a better bargain than some of the best earbuds.

The Razer Viper Ultimate gaming mouse.

(Image credit: Razer)

Get a Razer Viper Ultimate gaming mouse for almost half price on Prime Day

The  Razer Viper Ultimate isn't just one of Razer's best gaming accessories, it's one of the best gaming mice available. While it's been around for a few years, the Viper Ultimate is no slouch. It has a max DPI of 20,000, features Razer's HyperSpeed wireless technology, and weighs just 74 grams. Right now, you can get it for $80, which is almost half of its normal retail price of $150.

Xbox Series S

(Image credit: Windows Central)

Xbox Series S is down to $289.99 during Prime Day!

There's no specific "Prime Day" deal on the Xbox Series S, but you can still pick up an Xbox Series S at a discount at Amazon right now for $290. That's a bit off the top of its usual $300 price tag. If you've been planning to get in on the latest generation of consoles, this is a solid drop for as early in the lifecycle. Check out our roundup of the best Xbox Series X and Series S Prime Day deals for more gaming goodness.

Razer Kaira X Xbox

(Image credit: Razer)

Razer Kaira X Xbox headset | $60 $40 at Amazon

Prime Day is a great time to pick up a new gaming headset, and the Razer Kaira X for Xbox is the perfect fit if you're down for a budget option. This headset comes with the same sort of styling as Razer's other options, but it's 33% off right now, coming to just $40. It's wired, so you don't have to worry about batteries, and the drivers will make sure you hear any enemy sneaking up behind you.

Dell Inspiron 15 (3000)

(Image credit: Dell)

Dell Inspiron 15 3000 | $600 $392 at Dell

School is about to start back up, which means you may be thinking of snagging an affordable laptop for school for you or your student. Dell is making it easy by slashing over $200 off the price of the already affordable Inspiron 15 3000!

This laptop comes with an 11th Gen Intel Core i5-1135G7 CPU, 256GB or M.2 PCIe NVMe SSD storage, and 8GB of DDR4-2666MHz RAM. The display comes in at 15.6 inches and has an FHD resolution with an anti-glare finish. It's not the most powerful laptop out there, but it has plenty of horsepower to charge through web browsing and school work. And you'll be hard pressed to do better for $392!


(Image credit: LG Electronics)

Save $703 on the BEST TV for your Xbox Series X, the LG OLED C1

The LG OLED C1 is probably the best TV you could pick up for your Xbox Series X. For Amazon Prime Day, the beautiful LG OLED C1 is nearly 50% off for the 48-inch model, bringing it down to just under $800. That's the perfect size for a game room, and you seriously won't find a better set for the price.

What makes the LG OLED C1 great is its OLED screen, which can show pure blacks and incredibly vivid colors. Its HDR and Dolby Vision capabilities are fantastic, and it can pull of 120Hz with variable refresh rate. Those are all things you'll want in a TV for your Xbox Series X, Series S, and even PS5.

For more solid Xbox deals, check out our best Prime Day Xbox Series X and Series S deals.

B And O Beoplay Portal Review

(Image credit: Source: Windows Central)

Bang & Olufsen Beoplay Portal Gaming Headset | $499 $394 at Amazon

The B&O BeoPlay Portal is the world's most expensive Xbox headset, typically costing as much as an Xbox Series X itself. For Amazon Prime Day, it's down from $500 to $400, netting you a pretty tidy saving on what is ultimately the most premium Xbox headset on the market. What makes it so expensive? Technologies like ANC active noise canceling eliminate sound from the outside, sitting alongside aptX sound codecs and Bluetooth 5.1 for superior mobile and laptop connectivity. 

It also sports premium materials, incredible lightweight at 256 grams, and direct-to-Xbox wirelessness for seamless indoor and outdoor use. The B&O BeoPlay Portal is without a doubt one of the most expensive Xbox accessories on the market, if not the most expensive Xbox accessory, but it's designed specifically to sit inside that premium lifestyle headphone category, as opposed to you typical gaming headset. 

Samsung Galaxy Tab A

(Image credit: Future)

Samsung Galaxy Tab A7 Lite | $160 $115

Xbox cloud gaming is great, but games designed for TV screens are a bit of a slog on a small device like your typical smartphone. While some games work well, others have user interfaces designed for larger displays, making them hard to understand or read on smaller screens. As such, I typically opt for larger screens to get my Xbox cloud gaming on, and the Galaxy Tab A7 from Samsung is a great option for it. 

While this tablet isn't particularly fast or powerful, it is USB-C and can run the Xbox Game Pass app flawlessly, which is essentially what you want for cloud streaming games. It's also a decent option for ebooks and streaming video at 8.7 inches, making it a "mini" tablet, but still bigger than most smartphones. Just don't expect to be doing anything particularly strenuous on this lower-end device. 

For Amazon Prime Day, it sheds almost a third of its typical price from $159 down to just $115. 


(Image credit: Future)

Galaxy Tab A8 | $229 $159 at Amazon

As a fan of Xbox Cloud Gaming, I find the small screens on a typical smartphone to be prohibitive in lots of games on Xbox Game Pass, owing to the fact they're designed for larger displays like TVs. Unreadable text, tiny UI elements, and in-game details are hidden behind a tiny screen can make some games barely playable. As noted earlier below, I prefer larger screens for cloud gaming, but what if you want something more laptop-sized?

If you want something larger than the Galaxy Tab A7 Lite I posted earlier, the Galaxy Tab A8 is a 2019 edition tablet, that clocks in at 10.4 inches. It's not the most powerful tablet in the world, but it's more than adequate for running lighter games, ebook readers like Kindle, streaming apps like Netflix, or indeed, Xbox Cloud Gaming, with its 1200p resolution screen. It also beats the Tab A7 and Tab A on battery life, with a beefy 7040 mAh that should compliment cloud gaming quite nicely. 

Down to $159, this tablet easily becomes one of the best tablets for Xbox Cloud Gaming while we wait (possibly in vain) for Microsoft to make its very own Xbox handheld. 

Intel 12th Gen Core I9 Hero Boxes

(Image credit: Future)

Intel Core i5-12600KF | $312 $218 at Amazon

The Intel Core i9-12900K may be the big daddy of Intel's Alder Lake processors, but it's the Core i5 range that tick all the right boxes for performance, efficiency, and value. The Intel Core i5-12600K is one of our favorite CPUs of this 12th Gen family and the Core i5-1200KF is just as good, aside from not having an integrated GPU.

It's on sale right now for Amazon Prime Day, allowing you to save upwards of $100 on a 10-core processor. This thing is ideal for gaming, even up to 4K with the best graphics card you can afford. And because you'll need a GPU to use with the Core i5-12600KF, be sure to check out our best GPU Prime Day deals (opens in new tab) for some helpful pointers on where to look.

Razer Blade

(Image credit: Future)

Razer Blade 15| $2,099 $1,899 at Amazon

I've been using Razer Blade laptops for years, and noticed that one of the company's flagship RTX 30xx series models is enjoying a decent $100 off the typical asking price for Amazon Prime Day. 

This Razer Blade 15 model sports an Intel 11th gen octacore i7 CPU, alongside an RTX 3070, a 1080p 144Hz display, 16GB RAM and a 512GB SSD (both of which can be upgraded). The Razer Blade laptops pack an impressive amount of power into a chassis that defy typical gaming laptop designs — sleek, stylish, and subtle, integrating Thunderbolt-3 and RGB lighting for some added flair. This is one laptop that will last you a seriously long time, and one I cannot recommend enough. Quite easily among the best gaming laptops out there. 


(Image credit: ASUS)

ASUS E410 laptop | $250 $100 at Best Buy

You're not going to be playing high-end video games or doing 4K video editing on this laptop, but if you need something absolutely basic for browsing the web, processing word documents, or doing online shopping, you could do far worse than this impressively-priced 14-inch notebook from ASUS. 

As part of this week's Prime Day shenanigans, the cheap and cheerful E410 comes down to just $100 at Best Buy, making it one of the most affordable big-brand laptops on the entire market right now. It's as basic as they come, with a very entry-level Intel processor, a sub-HD 768p screen, alongside 4GB of RAM and just 64GB of storage. 

This laptop is for those who need something absolutely bare-bones for doing the absolute basics. And for that, this is a pretty great deal. 

Xbox Series X

(Image credit: Microsoft)

Xbox Series X (Refurbished) | £450 £384 at Microsoft

Microsoft's Xbox Series X is a powerful device designed to deliver the best performance for console games. It can power the best Xbox games at 4K and often reach frame rates of up to 120 FPS. Unfortunately, that kind of power comes at a cost. The Xbox Series X retails at £450 in the UK, but you can get a refurbished one for £383 today. It's not exactly a Prime Day deal, but it's a good deal on Prime Day.

Lenovo X1 Fold

(Image credit: Future)

Lenovo ThinkPad X1 Fold | £1,669 £900 at Lenovo

Lenovo was the first company to ship a foldable Windows PC. The ThinkPad X1 Fold features a 13.3-inch OLED touch display that can fold in half, somewhat like the Galaxy Fold 3. Unlike today's popular folding phones, the ThinkPad X1 Fold is a full PC running either Windows 11 or Windows 10. It even comes with a mini keyboard that can lay across one half of the device's display, making the entire setup function like a traditional laptop. Normally, it costs £1,669, but right now, Lenovo has it discounted down to £900.

Amazon Echo Dot

(Image credit: Amazon)

Echo Dot (4th Gen) | $50 $20 at Amazon

Alexa-enabled devices are great tools for directing smart lights, music, and more. They're also handy for anyone with an Xbox since they can be used to control the console. Echo devices can play and pause media, increase or decrease the volume on your TV, and even turn an Xbox Series X, Xbox Series S, or Xbox One on or off with a voice command. Right now, Amazon has a sale on the Echo Dot 4th Gen that slashes the price by more than 50%.

Elgato Stream Deck MK.2 review

(Image credit: Future)

Elgato Stream Deck | $150 $100

If you enjoy streaming gameplay, the Elgato Stream Deck is one of the best accessories to pick up. It features 15 customizable LCD keys that can be used to perform a practically limitless combination of actions and shortcuts. During Amazon Prime Day, you can pick up the Elgato Stream Deck for just under $100, which is $50 off its normal price.

Note that the model that's on sale is the original Elgato Stream Deck that launched in 2015, not the newer Elgato Stream Deck MK.2. The overall functionality of the devices is the same, but the newer version supports interchangeable faceplates, a USB-C port, and a detachable stand. If those features aren't important to you, then the original Elgato Stream Deck is right for you, especially at its discounted price.

The Logitech G915 TKL

(Image credit: Logitech)

Logitech G915 TKL wireless gaming keyboard | $230 $143 at Amazon

You don't need a number pad to enjoy the best PC games, so why take up that extra space on your desk with keys you don't need? The Logitech G915 TKL wireless gaming keyboard features a compact design and is one of the best gaming keyboards around. It has utility keys that allow you to control various aspects of your gaming experience, including an RGB brightness adjuster, media keys, and a button that can swap your wireless connection type. On Amazon Prime Day, you can save over $90 on the Logitech G915 TKL.

Acer Aspire 5 Slim

(Image credit: Acer)

Pick up a new PC for back-to-school and save during Prime Day!

If you're in need of new tech for the upcoming school year, doing your PC shopping early will save you some money. We're seeing some terrific discounts on desktops and laptops that are budget-friendly and powerful enough. Be sure to check out our buying guide for Prime Day deals on back-to-school laptops and desktops and shop early!

Nitro 50 N50 620

(Image credit: Acer)

Acer's Nitro 50 desktop is perfect for students with $150 discount

Acer's Nitro 50 comes with a discrete Nvidia GTX 1650 GPU and a solid Intel 11th Gen Core i5 processor. Suitable for light gaming, content creation, video editing, and working with photos, this desktop is versatile enough for a variety of academic pursuits. And it's priced at just $679 for Prime Day!

G.Skill Trident Z5 RGB DDR5

(Image credit: G.SKILL)

Got a need for speed? Speed up your PC with these DDR5 RAM deals

Whether you're on a laptop or a desktop, adding more memory can help speed up your system. If you have a rig that's capable of accepting the latest DDR5 standard, these deals can help save you money on your upgrade as you add or swap out your existing RAM sticks. Laptop DDR5 memory starts at $138, while desktop RAM starts at $180.

Echo wall clock

(Image credit: Amazon)

Just a little more than 11 hours of Prime Day sales to go!

Have you gotten your Prime Day orders in? Amazon's countdown clock shows that there are just over 11 hours left on the clock to snag your favorite items. But don't wait for the timer to run out, as deals can quickly sell out. Shop early. 

And if you need a new laptop, visit our Prime Day hub for savings on laptops and notebooks

Samsung 980 Pro 1TB SSD

(Image credit: Amazon)

Need more storage? Check out these fast SSDs on discount for Prime Day!

Whether you need faster storage or more space to store your digital files, these Prime Day deals for solid-state drives tick just the right boxes. Whether you're running on an older PC or gaming on a top-of-the-line modern rig, we've found some of the best deals on different SSD formats to suit your needs. Prices start at just under $100. 

Amazon kindle ereader

(Image credit: Amazon)

In the market for a new Kindle? Don't buy one until you read our review.

Kindles are on big discount for Prime Day, and with so many models to choose from, each with its own unique set of benefits, you'll definitely want to do a little research before you spend your cash. Fortunately, we've tried them all so you wouldn't have to. If you're new to digital book readers and the Kindle, be sure to read our review before you shop for one on Prime Day. 

Corsair iCUE 4000X

(Image credit: Corsair)

Want to upgrade or build your own gaming rig? Don't make the same mistake we did.

In case you didn't already know, Prime Day delivers some amazing discounts on PC cases, components, accessories, and peripherals. This means you'll definitely want to snag some components to build or upgrade your PC sooner, rather than later, to ensure that you'll get some sizable savings. 

We made the mistake of not timing our build properly in the past, meaning that we weren't able to take advantage of any discounts on what our rig needed. To save you from the same mistake we made, we've compiled some of the best deals on processors, cases, cooling, memory, RAM, and more for your next PC build. Shop smart. Shop early. 

Ring Doorbell Pro

(Image credit: Ring)

Don't work harder. Make your home work smarter with smart home gadgets

Prime Day is prime time to upgrade your home to a smart home. We rounded up 16 incredible Prime Day deals from video doorbells to smart locks and robovacs to keep you keep better control over your home. Find smart light bulbs, garage controllers, a home security system, and more in our list of the 16 best smart home Prime Day deals

ASUS Prime B660M-A WiFi

(Image credit: ASUS)

Upgrading to a 12th Gen Intel Ander Lake processor? Get this affordable Asus motherboard for just $144

Looking to upgrade to Intel's latest 12th Gen processor? You'll want to check out this Asus Prime B660M motherboard, which is discounted to $144 for Prime Day. The Prime B660M is among the top budget motherboards out there. 

And if you need a new CPU, check out some of the latest deals on Intel's 12th Gen processor

August Smart Lock

(Image credit: Amazon)

A smart lock is one of the best smart home gadgets you can buy

Looking to upgrade your home with some smart tech? Try a smart lock! It's one of our favorite purchases from past Prime Day sales. August's smart lock will work with your existing deadbolt, making upgrades super easy, and this year, the August smart lock is on sale for just $149

If you need more smart home upgrade ideas, be sure to check out our picks for the best smart home tech for this year's Prime Day. We cover everything from smart locks to video doorbells and more on our list of the 16 smart home upgrades that are on discount for Prime Day. 

Microsoft 365 Personal and Amazon Gift Card

(Image credit: Microsoft)

Save on Microsoft 365 plans and get a free Amazon gift card with this hack!

Extend your Office online access by topping off your Microsoft 365 subscription this Prime Day. Our clever hack will get you Microsoft 365 Personal and Microsoft 365 Family plans at a nice discount. The best part? You also get a free Amazon gift card in the process.

Microsoft Surface Pro X

(Image credit: Microsoft)

Save big on Microsoft's premium Surface Pro X

Microsoft's Surface Pro X is one of our favorite tablets. Powered by an Arm processor, you'll get long battery life in a lightweight form factor, and now you can save up to $300 on one of the higher-end configurations this year.

But wait, there's more!

If you choose a refurbished model, you'll be able to save up to 50% off the cost of Microsoft's premium tablet-laptop hybrid!

Dell XPS 13.

(Image credit: Windows Central)

Save $626 on the XPS 13 (9310) with 3.5K OLED display with Dell's Black Friday in July sale!

The XPS is seriously one of the best laptops you can get, and it's one of our perennial favorites. It's a thin laptop with a solid build, and it's pretty flawless in all the ways that matter. With Dell's Black Friday in July sale, it's even easier to pull the trigger because it's discounted to $1,294. That's $626 off its usual $1,920 price.

This particular configuration has a 16:10 OLED display, and 11th Gen Intel Core i7-1165G7 CPU, 512GB of SSD storage, and 8GB of RAM. You get Thunderbolt 4 ports, along with a 3.5mm headphone jack and a microSD card reader. If you want to check out more of our thoughts about this great PC, check out our Dell XPS 13 (9310) review!

Sony WH-1000XM4 Headphones

(Image credit: Sony)

Snag Sony's excellent WH-1000xm4 headphones for $228, their lowest price yet!

Sony's WH-1000xm4 headphones are among the best noise-canceling sets you can get, and they're cheaper than ever for Prime Day. The WH-1000xm4 headphones are currently just $228 at Amazon, which is $120 cheaper than their usual price.

These headphones come with the best noise canceling in the game, up to 30 hours of battery life, and a touch sensor to control pause, play, skip, volume, and voice assistant functions. They'll even automatically lower volume when you start talking, pause playback automatically when they're removed, and can get 5 hours of playback from a 10-minute charge.

You can't do much better than these headphones for the price, and they'll be shooting back up to $348 in just a few hours as Prime Day comes to a close.

Dying Light 2

(Image credit: Techland S.A.)

One of Xbox's best games, Dying Light 2: Stay Human, is just $35!

Still on the lookout for some solid Xbox games during Prime Day? Look no further. Dying Light 2: Stay Human is a cool $35, but it's about to go back up as Prime Day ends in a few hours.

If you enjoy some parkour action while fighting off hordes of zombies, then this is a good pickup. The game was praised by critics at launch, and it looks phenomenal on Xbox Series X. It's also not a part of Game Pass, so this is the cheapest way to get in and play if you're an Xbox gamer.

If you're down for more Xbox games while they're cheap, check out our list of the best discounted Xbox Prime Day deals that you can't play on Game Pass.


(Image credit: LG Electronics)

The best TV for your Xbox is still on an incredible sale for $797!

The LG OLED C1 is not only an incredible TV, but it's arguably the best you can get for your Xbox Series X and PS5. For Prime Day, you can pick up the 48-inch LG OLED C1 for a ridiculous $797. But it's only going to be that cheap for a few more hours!

As the name implies, the LG OLED C1 features a fantastically impressive OLED display. That means you'll get inky black and super-vivid colors with infinite contrast. More importantly for console gamers, it supports 120Hz at 4K, variable refresh rate, and Dolby Vision HDR. It's the full package and is the perfect size for a game room.

HP Laptop 15z

(Image credit: HP)

Don't miss out on this excellent back-to-school laptop for $380.

The HP Laptop 15z may not be the most powerful laptop around, but it's an excellent pickup for the kid in your life as they head back to school. Coinciding with Prime Day, HP has dropped the price of the HP Laptop 15z to $380. That's $170 off of its usual $550 price.

Don't let the price fool you, though. For the money, you'll pick up an AMD Ryzen 5 5500U CPU with six cores, 8GB of RAM, and a 128GB SSD for storage. The only thing you may want to tweak with this is the storage, but that's an easy fix with an external hard drive.

This model comes with a 15-inch 1366x768 display, but you can upgrade that to a 1080p panel for just $10 more. That's definitely worth doing for the price. There are also plenty of ports with USB-C, two USB-A, an HDMI, and a 3.5mm headphone jack.

Amazon Echo Dot

(Image credit: Amazon)

The Echo Dot makes a great Xbox voice command companion for $20.

Amazon always has a great fire sale on its own devices during Prime Day, which makes it an excellent time to pick one up. The Echo Dot also makes a great little Xbox companion, especially at a discounted $20.

It's one of the unsung features of the Echo, but you can set it up to control your Xbox with voice commands. These commands range from simple things like asking Alexa to turn up the Xbox's volume or pause a movie, to more complex requests like launching a game or downloading a game from Xbox Game Pass. It's pretty neat!

ASUS Prime B660M-A

(Image credit: ASUS)

This ASUS motherboard is pretty sweet (and cheap) way to start on an Intel 12th Gen build for $144.

Building a PC with an Intel 12th Gen CPU? This discount on the ASUS Prime B660M-A motherboard is a solid pickup if you want to save some cash. It's a modest $16 off of its usual $160 price, but it's a solid pick if you're looking to save where you can!

For the money, you'll get a mATX motherboard with PCIE 4.0 and built-in Wi-Fi 6 connectivity. There are also two M.2 slots, along with rear ports for USB Type-C, Ethernet, and USB 3.2. There's also support for ASUS' Aura Sync lighting.

The Razer Kraken gaming headset.

(Image credit: Razer)

This Razer Kraken headset for Xbox and PC is $38 for a few more hours!

What's the first thing you think of when you hear Razer? Probably their headsets -- and that's because they make some pretty great ones. If you're in need of a new one for your Xbox, the Razer Kraken is down to $38 from its usual $80 price for Prime Day.

The Kraken is a pretty dang comfortable headset for long gaming sessions. It's got a great aluminum build, a retractable microphone, and 7.1 surround sound audio. There are also in-line audio controls for quick volume changes and muting.

Prime Day is about to wrap up, so if you still want to pull the trigger on a new headset, the Kraken is a solid, affordable one to snag.

Turtle Beach Stealth 700 Hero

(Image credit: Future)

Turtle Beach Stealth 600 | $70 at Amazon $100

Just minutes to go and there are still a few great deals you can snag at the last minute here for Amazon Prime Day. 

This Turtle Beach Stealth 600-Gen 2 headset hits its lowest price ever at $70, making it arguably the cheapest way to get a wireless Xbox headset right now. The Stealth 600 Gen-2 is a direct-to-Xbox wireless headset meaning it connects straight to your console without any extra USB dongles or cables, and sports side-tone mic monitoring on its solid flip-to-mute microphone. 

The headset has a robust and comfortable design, and sports solid sound for its price point, emphasizing tactical gameplay. Turtle Beach headsets have literally gotten me kills in games like Call of Duty thanks to the spatial awareness they inject, making me eager to recommend this one for those who want a wireless headset without breaking the bank. 

And that's a wrap! 

With Amazon Prime Day ending for another year, we just wanted to say thank you for choosing us to help aggregate this year's best tech deals. Prime Day is a major reason we're able to keep delivering free content at the consistency, quality, and frequency that we do, and helping you find the best (actually good) tech deals is a major motivator for the team. 

Prime Day has officially wrapped up right now, but many of the deals we see here might still be available for a little while longer if you shop around. We'll most likely be back later in the year for more live blog style coverage for Black Friday 2022 going into Christmas, where the deals may be even better. 

For now, on behalf of Windows Central, adios! 

— Jez Corden

razer kraken kitty v2

(Image credit: Razer)

Ok, after our first quick sweep we're seeing a lot of deals are still live despite Prime Day ending yesterday. Some like the Razer headset picture above and the curved BenQ monitor are even cheaper! Stay tuned as we'll see what else is still happening for you today.

$100 off this great steering wheel that's perfect for both PC and Xbox gaming is an offer we're stoked to still see online today. That's a massive discount on the Touch Screen Dell XPS 13 too over at the Dell store!

Surface Pro 8 front with Type Cover

(Image credit: Future)

There's still time to get a Surface Pro 8 for $250 post-Prime Day. Surface Earbuds are also still 50% off at $99. It's a great time to be a Surface fan!

In the mood for a new gaming mouse? The Razer Viper Ultimate is still available at a pretty decent discount, dropping from $150 to $122. That includes the RGB charging dock, so you can always keep the battery topped up.

The Xbox Series S is also still a little cheaper than usual, moving from $300 down to $290. That's not a huge drop, but it's still worth considering this early into the latest generation of consoles.

Dell Inspiron 15 (3000)

(Image credit: Dell)

One of the best deals on a laptop for back-to-school season is still on at Dell. You can pick up the Dell Inspiron 15 3000 for just $392, which is down from its normal $600 price. It's not the most powerful laptop in the world, but it's a fantastic option for the student in your life, whether that's you or your kiddo.

You also don't want to miss out on the best TV for your Xbox Series X or PS5: The LG OLED C1. The 48-inch set is still available for just under $800, which is bananas for an OLED TV with 120Hz and VRR.

Tue, 12 Jul 2022 07:50:00 -0500 en text/html
Killexams : Researchers Find Android Phones Still Track You, Even When You Opt Out

Photo: Leon Neal (Getty Images)

If you use an Android phone and are (rightfully!) panic about digital privacy, you’ve probably taken care of the basics already. You’ve deleted the snoopiest of the snoopy apps, opted out of tracking whenever possible, and taken all of the other precautions the popular how-to privacy guides have told you to. The bad news—and you might want to sit down for this—is that none of those steps are enough to be fully free of trackers.

Or at least, that’s the thrust of a new paper from researchers at Trinity College in Dublin who took a look at the data-sharing habits of some popular variants of Android’s OS, including those developed by Samsung, Xiaomi, and Huawei. According to the researchers, “with little configuration” right out of the box and when left sitting idle, these devices would incessantly ping back device data to the OS’s developers and a slew of selected third parties. And what’s worse is that there’s often no way to opt out of this data-pinging, even if users want to.

A lot of the blame here, as the researchers point out, fall on so-called “system apps.” These are apps that come pre-installed by the hardware manufacturer on a certain device in order to offer a certain kind of functionality: a camera or messages app are examples. Android generally packages these apps into what’s known as the device’s “read only memory” (ROM), which means you can’t delete or modify these apps without, well, rooting your device. And until you do, the researchers found they were constantly sending device data back to their parent company and more than a few third parties—even if you never opened the app at all.

Here’s an example: Let’s say you own a Samsung device that happens to be packaged with some Microsoft bloatware pre-installed, including (ugh) LinkedIn. Even though there’s a good chance you’ll never open LinkedIn for any reason, that hard-coded app is constantly pinging back to Microsoft’s servers with details about your device. In this case, it’s so-called “telemetry data,” which includes details like your device’s unique identifier, and the number of Microsoft apps you have installed on your phone. This data also gets shared with any third-party analytics providers these apps might have plugged in, which typically means Google, since Google Analytics is the reigning king of all the analytics tools out there.

The researcher’s breakdown of which devices were collecting what data, and where it was being sent.
Screenshot: Shoshana Wodinsky (Trinity College)

As for the hard-coded apps that you might actually open every once in a while, even more data gets sent with every interaction. The researchers caught Samsung Pass, for example, sharing details like timestamps detailing when you were using the app, and for how long, with Google Analytics. Ditto for Samsung’s Game Launcher, and every time you pull up Samsung’s virtual assistant, Bixby.

Samsung isn’t alone here, of course. The Google messaging app that comes pre-installed on phones from Samsung competitor Xiaomi was caught sharing timestamps from every user interaction with Google Analytics, along with logs of every time that user sent a text. Huawei devices were caught doing the same. And on devices where Microsoft’s SwiftKey came pre-installed, logs detailing every time the keyboard was used in another app or elsewhere on the device were shared with Microsoft, instead.

We’ve barely scratched the surface here when it comes to what each app is doing on every device these researchers looked into, which is why you should check out the paper or, better yet, check out our handy guide on spying on Android’s data-sharing practices yourself. But for the most part, you’re going to see data being shared that looks pretty, well, boring: event logs, details about your device’s hardware (like model and screen size), along with some sort of identifier, like a phone’s hardware serial number and mobile ad identifier, or “AdID.”

On their own, none of these data points can identify your phone as uniquely yours, but taken together, they form a unique “fingerprint” that can be used to track your device, even if you try to opt out. The researchers point out that while Android’s advertising ID is technically resettable, the fact that apps are usually getting it bundled with more permanent identifiers means that these apps—and whatever third parties they’re working with—will know who you are anyway. The researchers found this was the case with some of the other resettable IDs offered by Samsung, Xiaomi, Realme, and Huawei.

To its credit, Google does have a few developer rules meant to hinder particularly invasive apps. It tells devs that they can’t connect a device’s unique ad ID with something more persistent (like that device’s IMEI, for example) for any sort of ad-related purpose. And while analytics providers are allowed to do that linking, they can only do it with a user’s “explicit consent.”

“If reset, a new advertising identifier must not be connected to a previous advertising identifier or data derived from a previous advertising identifier without the explicit consent of the user,” Google explains on a separate page detailing these dev policies. “You must abide by a user’s ‘Opt out of Interest-based Advertising’ or ‘Opt out of Ads Personalization’ setting. If a user has enabled this setting, you may not use the advertising identifier for creating user profiles for advertising purposes or for targeting users with personalized advertising.”

It’s worth pointing out that Google puts no rules on whether developers can collect this information, just what they’re allowed to do with it after it’s collected. And because these are pre-installed apps that are often stuck on your phone, the researchers found that they were often allowed to side-step user’s privacy explicit opt-out settings by just... chugging along in the background, regardless of whether or not that user opened them. And with no easy way to delete them, that data collection’s going to keep on happening (and keep on happening) until that phone’s owner either gets creative with rooting or throws their device into the ocean.

Google, when asked about this un-opt-out-able data collection by the folks over at BleepingComputer, responded that this is simply “how modern smartphones work”:

As explained in our Google Play Services Help Center article, this data is essential for core device services such as push notifications and software updates across a diverse ecosystem of devices and software builds. For example, Google Play services uses data on certified Android devices to support core device features. Collection of limited basic information, such as a device’s IMEI, is necessary to deliver critical updates reliably across Android devices and apps.

Which sounds logical and reasonable, but the study itself proves that it’s not the whole story. As part of the study, the team looked into a device outfitted with /e/OS, a privacy-focused open-source operating system that’s been pitched as a “deGoogled” version of Android. This system swaps Android’s baked-in apps—including the Google Play store—with free and open source equivalents that users can access with no Google account required. And wouldn’t you know it, when these devices were left idle, they sent “no information to Google or other third parties,” and “essentially no information” to /e/’s devs themselves.

In other words, this aforementioned tracking hellscape is clearly only inevitable if you feel like Google’s presence on your phones is inevitable, too. Let’s be honest here—it kind of is for most Android users. So what’s a Samsung user to do, besides, y’know, get tracked?

Well, you can get lawmakers to care, for starters. The privacy laws we have on the books today—like GDPR in the EU, and the CCPA in the U.S.—are almost exclusively built to address the way tech companies handle identifiable forms of data, like your name and address. So-called “anonymous” data, like your device’s hardware specs or ad ID, typically falls through the cracks in these laws, even though they can typically be used to identify you regardless. And if we can’t successfully demand an overhaul of our country’s privacy laws, then maybe one of the many massive antitrust suits Google’s staring down right now will eventually get the company to put a cap in some of these invasive practices.

Fri, 15 Oct 2021 11:47:00 -0500 en-us text/html
Killexams : Embracing Cloud-Native for Apache DolphinScheduler with Kubernetes: a Case Study

Key Takeaways

  • The more efficient cloud-native deployment mode of DolphinScheduler saves more than 95% of human resources and working time over the original deployment model.
  • By integrating GitOps technology, we improved the DevOps management capability of DolphinScheduler and improved the software delivery efficiency and security audit capability.
  • By integrating newer cloud-native technologies, we were able to add horizontal scaling, health probes, and rolling deployments to DolphinScheduler.
  • Integrating observability technologies, such as Prometheus, into the infrastructure and service mesh dramatically improved the monitoring features available with DolphinScheduler.
  • Deep integration with Kubernetes job technology enabled a hybrid scheduler for both traditional virtual machines and container-based running environments.

DolphinScheduler is a distributed and easily scalable visual workflow task scheduling platform open sourced by Analysys.

In the field I’m working in, the use of DolphinScheduler can quickly solve the top ten pain points of data development for enterprises:

  • Multi-source data connection and access: most common data sources in the technical field can be accessed, and adding new data sources does not require many changes
  • Diversified, specialized, and massive data task management: this revolves around the problems of big data (Hadoop family, Flink, etc.) task scheduling, and is significantly different from traditional schedulers
  • Graphical task arrangement: this provides a convenient user experience and competitive ability with commercial products, especially for most foreign open-source products that cannot directly generate data tasks by dragging and dropping
  • Task details: the rich viewing of tasks, log, and time-running axis display, which meet developers’ requirements for refined data tasks management, quickly locating slow SQL and performance bottlenecks
  • Support for a variety of distributed file systems: this enriches the users’ choices for unstructured data
  • Native multi-tenant management: meets the data task management and isolation requirements of large organizations
  • Fully automatic distributed scheduling algorithm to balance all scheduling tasks
  • Native cluster monitoring: can monitor CPU, memory, number of connections, and Zookeeper status and is suitable for one-stop operation and maintenance by SMEs
  • Native task alarm function: minimizes the risk of task operation
  • Strong community-based operations: listening to the real voice of customers, constantly adding new functions, and continuously optimizing the customer experience

Based on the early microservice technology, DolphinScheduler adopts the concept of a service registry to perform distributed management of the cluster by using Zookeeper (many big data technologies use Zookeeper as decentralized cluster management). Worker primary nodes can be added arbitrarily, or you can deploy API management and alarm management independently. As an enterprise-level technical module, it realizes good technical characteristics of microservice separation, independent deployment, and modular management. However, in the era of rapid development of containerized cloud-native applications, this kind of basic technology pattern has some deficiencies:

  • It needs deployment from the ground, whether it is installed on a physical machine or a virtual machine, DolphinScheduler requires hundreds of shell operations, and a cluster of nodes may require thousands of shell operations
  • A standardized enterprise-level DolphinScheduler involves the management of a large number of basic environments, and usually requires more than eight nodes, hosts, and IP addresses. This infrastructure information brings certain management difficulties
  • When adding a node, dozens of operations are also required (installing Java, configuring the host, setting the DS Linux user, setting the password-less login, modifying the installation node configuration file), and the entire cluster needs to be stopped and restarted
  • Large enterprises usually have multiple clusters to support different business units, which will bring a lot of repetition in workloads
  • The scheduler has some observability functions, but cannot be integrated with mainstream tools
  • The scheduler, as a whole, still needs routine daily inspection work, such as investigating an abnormal exit of the core java process
  • There is no effective management mechanism or tool for the configuration settings of the scheduler under different requirements and scenarios

The core ideas for addressing these technical deficiencies are:

  • How to integrate DolphinScheduler into today’s mainstream cloud-native technology
  • How to deploy DolphinScheduler with less human resources, and can a fully automatic cluster installation and deployment mode be realized
  • How to have a fully serverless DolphinScheduler and greatly reduce the management cost of config management
  • How to standardize technical component implementation specifications
  • Can it operate unsupervised and the system self-healing
  • How to build and integrate it into an existing observability platform

Leveraging  Kubernetes Technology

As the de facto standard of cloud-native system technology, Kubernetes has brought a revolutionary change to the entire IT application technology system. Kubernetes is primarily based on core technical characteristics of service registration and discovery, load balancing, automated software release and rollback, containerized isolation, software self-healing, and distributed configuration management. 

Not just Kubernetes, our team has also integrated many excellent projects from the Cloud Native Computing Foundation (CNCF), and carried out the following work:

  • The deployment technology of DolphinScheduler has been improved. We have used Helm and Argo CD to greatly simplify and perform one-click deployment.
  • GitOps management mechanism for the configuration content is implemented by Argo CD, and this enables the complete audit capability of modern DevOps.
  • The Horizontal Pod Autoscaling technology of Kubernetes greatly simplifies the operation difficulty of application scaling.
  • The standardized health probe technology of Kubernetes enables the powerful self-healing ability of all technical components of the scheduler.
  • The rolling release technology of Kubernetes and Argo CD enables the elegant and simple upgrade of DolphinScheduler tools.
  • The use of Kube-Prometheus technology brings standardized observability capabilities to DolphinScheduler.
  • Powerful UI technology simplifies CMDB visual management, component configuration management based on Kubernetes, application log management, etc.

We have also introduced more powerful tools to DolphinScheduler to obtain richer cloud-native features:

  • Achieved easier service access by Kubernetes service registration discovery and ingress technology
  • Introduced Linkerd to bring the function of a service mesh to DolphinScheduler and Strengthen the management and monitoring capabilities of all APIs
  • Combined DolphinScheduler with Argo Workflows or standard Kubernetes job
  • Introduced the object storage technology MinIO, unifying the technology storing unstructured data with DolphinScheduler

All the work we have done is aimed to make DolphinScheduler stronger and more stable in operation, with lower demand for operator time, better observability, and a more abundant and complete ecology.

The Initial Transition to a Cloud-Native Platform

To fully embrace being a cloud-native technology, DolphinScheduler first needs to quickly implement cloud-native deployments and operations, i.e., migrating most enterprise applications to the Kubernetes environment. 

Thanks to the open-source community contribution, we quickly constructed the Docker image of the DolphinScheduler Java application jar package and used the excellent Helm toolkit to implement scripting based on the Kubernetes declarative-style deployment. Becoming managed objects of Kubernetes is the most important step to integrating into cloud native. These tasks not only make the use of tools more convenient and faster for cloud-native users and organizations but also have drastically improved work efficiency for users of DolphinScheduler to use the tools.

To deploy DolphinScheduler on Kubernetes you can now:

  1. Obtain the Helm package at the folder ./dolphinscheduler-1.3.9/docker/kubernetes/dolphinscheduler in the dolphinscheduler-1.3.9.tar.gz file from the GitHub repo.
  2. Use the following command to deploy a Kubernetes-managed DolphinScheduler instance:
kubectl create ns ds139
helm install dolphinscheduler . -n ds139
  1. Sometimes, DolphinScheduler users need to integrate DataX, the MySQL JDBC driver, or the Oracle JDBC driver for ETL and database connection purposes. We can download the necessary components, build the new Docker image, and upgrade the Kubernetes-managed DolphinScheduler instance:

#Download the additional components

#Create a new docker image with new tag by this Dockerfile
FROM apache/dolphinscheduler:1.3.9
COPY *.jar /opt/dolphinscheduler/lib/
RUN mkdir -p /opt/soft/datax
COPY datax /opt/soft/datax

#Edit image tag of helm value.yaml file, and execute helm upgrade.
helm upgrade dolphinscheduler -n ds139

Generally, it is recommended to use an independent, external PostgreSQL as the management database for the production environment. We found that after switching to an external database, even if we completely deleted and redeployed DolphinScheduler in Kubernetes, we did not have to recreate the DolphinScheduler’s application data (e.g. user-defined data processing tasks). This once again proved high availability and data integrity. Also, we recommend configuring the PersistentVolume for DolphinScheduler components because the historical DolphinScheduler’s applications logs would be lost if pods restart or upgrade.

Compared with the operation of hundreds of shell commands in the traditional model, with one configuration file modification, and a single line installation command, you can have eight components of DolphinScheduler automatically installed, saving a lot of labor costs and operational errors. For multiple DolphinScheduler clusters, it would be a huge human cost reduction, and the waiting time of the business department would be reduced from several days to less than an hour, or even possibly ten minutes.

Adding GitOps Based on Argo CD

Argo CD is a declarative GitOps continuous delivery tool based on Kubernetes and an incubation project of the CNCF, and a best practice tool for GitOps.

GitOps can bring the following advantages to the implementation of Apache DolphinScheduler.

  • Graphical and one-click installation of clustered software
  • Git records the full release process and enables one-click rollback
  • Convenient DolphinScheduler tool log viewing

Once implemented, we can see the pod, configmap, secret, service, ingress, and other resources that are automatically deployed by Argo CD, and it also displays the manifest commit information and username, which completely records all release event information. At the same time, you can also roll back to the historical version with one click.

Relevant resource information can be seen through the kubectl command:

[root@tpk8s-master01 ~]# kubectl get po -n ds139
                           NAME                               READY   STATUS  RESTARTS           AGE
Dolphinscheduler-alert-96c74dc84-72cc9  1/1     Running 0               22m
Dolphinscheduler-api-78db664b7b-gsltq   1/1     Running 0               22m
Dolphinscheduler-master-0                       1/1     Running 0               22m
Dolphinscheduler-master-1                       1/1     Running 0               22m
Dolphinscheduler-master-2                       1/1     Running 0               22m
Dolphinscheduler-worker-0                       1/1     Running 0               22m
Dolphinscheduler-worker-1                       1/1     Running 0               22m
Dolphinscheduler-worker-2                       1/1     Running 0               22m

[root@tpk8s-master01 ~]# kubectl get statefulset -n ds139
              NAME                                READY              AGE
Dolphinscheduler-master         3/3             22m
Dolphinscheduler-worker         3/3             22m

[root@tpk8s-master01 ~]# kubectl get cm -n ds139
          NAME                                     DATA                AGE
Dolphinscheduler-alert          15              23m
Dolphinscheduler-api                    1               23m
Dolphinscheduler-common         29              23m
Dolphinscheduler-master         10              23m
Dolphinscheduler-worker         7               23m

[root@tpk8s-master01 ~]# kubectl get service -n ds139
Dolphinscheduler-api    ClusterIP     <none> 12345/TCP 23m
Dolphinscheduler-master-headless ClusterIP None <none> 5678/TCP 23m
Dolphinscheduler-worker-headless ClusterIP None         <none> 1234/TCP,50051/TCP 23m

[root@tpk8s-master01 ~]# kubectl get ingress -n ds139
      NAME                               CLASS                       HOSTS ADDRESS
Dolphinscheduler                <none>  

You can also see that all pods are deployed on different hosts in the Kubernetes cluster, for example, workers 1 and 2 are on different nodes. 

Once we have configured ingress, we could use the domain name to access the DolphinScheduler web UI in our company’s intranet, let’s take the DNS subdomain name as an example: We can view the internal logs of each component of Apache DolphinScheduler at Argo CD:

With Argo CD, it is very convenient to modify the number of replicas of components such as master, worker, API, or alert. Apache DolphinScheduler’s Helm configuration also reserves the setting information of CPU and memory. Here we modify the replica’s setting in the value.yaml file. After modification, we can push it to the company’s internal source code system:

  podManagementPolicy: "Parallel"
  replicas: "5"
  podManagementPolicy: "Parallel"
  replicas: "5"
  replicas: "3"
  replicas: "3"

Just click sync on Argo CD to synchronize, and the corresponding pods will be added as required.

[root@tpk8s-master01 ~]# kubectl get po -n ds139
                   NAME                                      READY   STATUS              RESTARTS            AGE
Dolphinscheduler-alert-96c74dc84-72cc9  1/1     Running         0               43m
Dolphinscheduler-alert-96c74dc84-j6zdh  1/1     Running         0               2m27s
Dolphinscheduler-alert-96c74dc84-rn9wb  1/1     Running         0               2m27s
Dolphinscheduler-api-78db664b7b-6j8rj   1/1     Running         0               2m27s
Dolphinscheduler-api-78db664b7b-bsdgv   1/1     Running         0               2m27s
Dolphinscheduler-api-78db664b7b-gsltq   1/1     Running         0               43m
Dolphinscheduler-master-0                       1/1     Running         0               43m
Dolphinscheduler-master-1                       1/1     Running         0               43m
Dolphinscheduler-master-2                       1/1     Running         0               43m
Dolphinscheduler-master-3                       1/1     Running         0               2m27s
Dolphinscheduler-master-4                       1/1     Running         0               2m27s
Dolphinscheduler-worker-0                       1/1     Running         0               43m
Dolphinscheduler-worker-1                       1/1     Running         0               43m
Dolphinscheduler-worker-2                       1/1     Running         0               43m
Dolphinscheduler-worker-3                       1/1     Running         0               2m27s
Dolphinscheduler-worker-4                       1/1     Running         0               2m27s

Not only Helm, but Argo CD-based GitOps technology gives graphical, automated, traceable, auditable, and powerful DevOps, rollback, and monitoring capabilities to the entire set of DolphinScheduler tool, without any code modification to DolphinScheduler.

Incorporating Self-Healing into DolphinScheduler

As we all know, the contemporary IT environment is always in an unstable state. In other words, our technology systems regard various failures of servers, operating systems, and networks as regular events in the cluster. When the end user cannot normally access a task management page of DolphinScheduler through the browser, or when DolphinScheduler fails to run a regular big data task, it is already too late. 

However, before DolphinScheduler turns to cloud native, it can only rely on daily monitoring to check whether the master/worker/API and other components are running normally, by managing the UI through DolphinScheduler, or checking whether the Java process exists through jps. When an enterprise has multiple hundreds of scheduling environments, it will not only cost a lot but more importantly, there will be huge risks to the availability of the system.

It is worth noting that the Kubernetes technology itself can automatically restart and recover for stateful and deployment types of standardized applications, and even CRDs themselves can automatically restart and resume. When the application fails, an abnormal event will be recorded, and the application will be re-pulled to restart the application, and Kubernetes will record the number of times the pod is restarted so that technicians can quickly locate the fault.

In addition to standardized self-healing, there are active health monitoring methods. That is to build a service interface to actively probe the pods which are running DolphinScheduler through livenessProbe, and this mechanism can automatically restart the pods after the detection exceeds the number of failed retries. In addition, by using the readinessProbe, the Kubernetes cluster can automatically cut off the traffic to the abnormal pod when an exception is captured by the probe, and automatically resumes the traffic request to the pod after the abnormal event disappears.

  enabled: true
  initialDelaySeconds: "30"
  periodSeconds: "30"
  timeoutSeconds: "5"
  failureThreshold: "3"
  successThreshold: "1"
  enabled: true
  initialDelaySeconds: "30"
  periodSeconds: "30"
  timeoutSeconds: "5"
  failureThreshold: "3"
  successThreshold: "1"

Enhancing the Observability of DolphinScheduler

We know that Prometheus is already the de facto standard for monitoring tools in cloud-native systems, and incorporating DolphinScheduler’s standard monitoring into the Prometheus system made the most sense to us. The Kube-Prometheus technology can monitor all resources under the Kubernetes cluster. Stateful set, namespace, and pod are the three main resource features of DolphinScheduler. Through Kube-Prometheus technology, routine monitoring of CPU, memory, network, IO, replication, etc., is automatically done without any additional development or configuration.

We use the Kube-Prometheus operator technology in Kubernetes to automatically monitor the resources of each component of Apache DolphinScheduler after deploying. However, please pay attention that the version of Kube-Prometheus needs to correspond to the major version of Kubernetes. 

Service Mesh Integration

As a data service provider, DolphinScheduler implements the observability management of service links through service mesh technology and incorporates it into the internal service governance system.

DolphinScheduler not only needs general resource monitoring but also requires the monitoring technology of the service invocation chain. Through service mesh technology, the internal service calls of DolphinScheduler and the observability analysis of external calls of DolphinScheduler API can be realized, optimizing the service of DolphinScheduler products.

In addition, as a service component of data tools, DolphinScheduler can be seamlessly integrated into the internal service mode of the enterprise through service mesh tools. It enables the features such as TLS service communication capability, client service communication retry mechanism, and cross-cluster service registration discovery without modifying the DolphinScheduler code. Through service mesh technology, the observability analysis of API external service calls and internal calls of Apache DolphinScheduler can be realized to optimize the Apache DolphinScheduler product services.

We used Linkerd as a service mesh product for integration, which is also one of the CNCF’s excellent graduate projects. By modifying the annotations in the value.yaml file of the Apache DolphinScheduler helm and redeploying, it can quickly inject the mesh proxy sidecar to master, worker, API, alerts, and other components of DolphinScheduler.

annotations: enabled

You can also observe the quality of service communication between components including the number of requests per second.

Incorporating Cloud-Native Workflow Scheduling

To be a genuine cloud-native scheduling tool, DolphinScheduler needs to be able to schedule cloud-native job flows.

The tasks scheduled by DolphinScheduler are all executed in fixed pods. In this mode, the isolation requirements of the task development technology are relatively high. 

Especially under the Python language environment, there will be different versions of the Python basic and dependent packages in a team, and the difference between versions may even appear in hundreds of combinations. A small difference in the dependent packages will lead to a Python program run error. This is also the obstacle that stops DolphinScheduler from running a large number of Python applications. We recommend the following methods so that DolphinScheduler can quickly integrate with the Kubernetes job system, with powerful task isolation and concurrency capabilities:

  • Use the standard Kubernetes API system for job submission. You can submit tasks directly through kubectl cli commands or REST API.
  • Upload the kubectl command file to DolphinScheduler and submit it via the shell task of DolphinScheduler.
  • Use the Argo CLI command of the Argo Workflows project or the rest API command to submit.

Whether it is Kubernetes or Argo Workflows, the watch function needs to be added, because Kubernetes is an asynchronous technology and needs to wait for the completion of the task.

Here we use the example of Argo Workflows, we can create a new shell task or step at DolphinScheduler and paste the following commands in it. As a result, we can combine normal data jobs (e.g. database sql job, spark job, or flink job) and cloud-native jobs together to perform a much more comprehensive job flow. For example, this job is a hive SQL task to export a web app’s user-click data: 

beeline -u "jdbc:hive2://" --outputformat=csv2 -e "select * from database.user-click" > user-click.csv 

This example job is a Python Tensorflow task to build a machine learning model by training the data. This job is run via HTTP. First, we run the job:

#Http way to run a Python Tensorflow job

curl --request POST -H "Authorization: ${ARGO_TOKEN}" -k \
       --url \
       --header 'content-type: application/json' \
       --data '{
                "namespace": "argo",
                "serverDryRun": false,
                "workflow": {
                "metadata": {
                    "name": "python-tensorflow-job",
                    "namespace": "argo"
                "spec": {
                    "templates": [
                        "name": "python-tensorflow",
                        "container": {
                        "image": "tensorflow/tensorflow:2.9.1",
                        "command": [
                        "args": [
                        "resources": {}
                    "entrypoint": "python-tensorflow",
                    "serviceAccountName": "argo",
                    "arguments": {}

We can then check the job information and status:

#Http way to check the Python Tensorflow job information and status
curl --request GET -H "Authorization: ${ARGO_TOKEN}" -k \
       --url https:/

Upgrading From HDFS to S3 File Technology

Distributed algorithm is one of the fields of cloud-native enabling technologies, such as Google’s Kubeflow technology, which perfectly combines TensorFlow and Kubernetes. Distributed algorithms usually use files, and S3 is the de facto standard for storing large data files that can be easily accessed. Of course, DolphinScheduler also integrates the MinIO technology, which enables S3 file management via simple configuration.

Start by modifying the configmap part in the Helm value.yaml file to point to a MinIO server.

  DATA_BASEDIR_PATH: "/tmp/dolphinscheduler"
  RESOURCE_UPLOAD_PATH: "/dolphinscheduler"
  FS_DEFAULT_FS: "s3a://dfs"
  FS_S3A_ACCESS_KEY: "admin"
  FS_S3A_SECRET_KEY: "password"

The name of the bucket that stores files in MinIO is called “dolphinscheduler”. The shared files which are uploaded by users via DolphinScheduler UI are stored in this folder.


As a new-generation cloud-native big data tool, Apache DolphinScheduler is expected to integrate more excellent tools and features in the Kubernetes ecosystem in the future to meet more requirements of diversified user groups and scenarios. Some of the items we currently have on our roadmap include:

  • Using a sidecar to periodically delete worker job logs to realize carefree operation and maintenance
  • Integrating more with Argo Workflows, users can call Argo Workflows for a single job, DAG job, and periodic job in Apache DolphinScheduler through the API, CLI, etc.
  • Using HPA (Horizontal Pod Autoscaling) to automatically scale up or down any DolphinScheduler’s component to achieve a more resilient running environment and deal with the uncertain workload
  • Integrating the Spark operator and Flink operator to perform a comprehensive cloud-native based distributed computing
  • Implementing multi-cloud and multi-cluster distributed job scheduling, and strengthening the architectural attributes of serverless and FAAS classes;

For more information about Apache DolphinScheduler or to participate in the developer community, please reach out to us on our Slack channel.

Thu, 30 Jun 2022 19:02:00 -0500 en text/html
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