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Exam Code: 920-530 Practice exam 2022 by team
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Killexams : Nortel guide - BingNews Search results Killexams : Nortel guide - BingNews Killexams : Hacking A Telecoms Frequency Standard For Your Lab

[Shane Burrell] came across a Nortel GPSTM and re-purposed it as a 10MHz reference for his lab. The GPSTM is designed to slot into a backplane, most likely for telecoms applications. So [Shane] needed to hack the board to run from a 48v PSU. Once powered up, it was relatively easy to interface as the card appears to contain the well known Trimble Thunderbolt module and is compatible with its software.

We’ve covered frequency references before and they can be a valuable addition to a lab. On the back of most scopes, spectrum analyzers and function generators you’ll find a 10MHz reference input allowing the user to supply a reference more accurate than that generated internally. Not only is an external reference often more accurate, it also allows you to keep all your equipment in sync with a common reference, which can be particularly important in some measurements. While some hackers opt for Rubidium sources, the GPS disciplined temperature-controlled oscillator in the Nortel unit should provide a nice stable reference.

A word of warning to [Shane] though, get sucked into hacking frequency references and you may become a time nut finding yourself climbing mountains to test the theory of relativity.

Wed, 27 Jul 2022 12:00:00 -0500 Nava Whiteford en-US text/html
Killexams : Retro Is In @ The Nortel

Oh boy, until today I had never stepped foot inside the Nortel Grill. I had pulled on the doors a couple of times in the past, but I guess those times must have been on a weekend. Last week Sue ‘Frenchy’ Cholewa called me up and said, “We’re at the Nortel and you have got to come see this place.” Unfortunately I could not make it that day, so I called Christa from BRO’s YUM Channel and we booked a date one week later. Judging from the great operational Flexlume sign hanging above the front door and the overall exterior retro appearance, I figured that the interior would be more of the same. I was right… the place still has Formica-topped tables with space-age comets and intact retro-lighting shining onto the wood stripped mirrored walls. There is so much character at the Nortel… a restaurant/bar that was named after the intersecting streets where it resides (a combination of Norris and Hertel).
I spoke with Nortel’s owner, Barbara Strzyz, who informed me that the establishment has had quite a history. “I’ve been working here for thirty-two years,” she told me. “It was started by my grandfather, then passed on do my mom and dad, and now I’m running it. Things have certainly changed over the years. This part of Buffalo used to be home to a lot of factories. The workers would come in and support the business. It was also a big Buffalo State College hangout. There used to be a stage in the corner, and on the weekends the students would come in to listen to live music. Now we’re only open during the weekdays (and nights)… you never know when this place will be busy… except for Fridays. Our Friday fish fries are always crowded. That’s when the family’s that used to live in the neighborhood come back for a visit. Now many of them live in West Seneca and Orchard Park.”

The Nortel is looking to show off its stuff again. Barbara has picked up Flying Bison beer to show her support for the city, and she’s excited for a new generation of Buffalonians to discover the place. If you’re looking for a quick good lunch featuring food that your grandmother would make, then this is the real deal. Our lunch took four minutes to show up from the time that we ordered it. There are even small buzzers at the table (non-functioning because they drove everyone crazy) that used to signal to the kitchen that a table required service. If you stop in on a Tuesday night, don’t be surprised to find a Euchre club playing cards at some of the tables. This is as oldschool as it gets… especially the ten different shades of green that make up the color pallet of the dining room.
There are two entrances to the Nortel. One is a stealth entrance to the dining room on the side of the building. And then there’s a front entrance to the bar (two separate rooms) off of Hertel. Don’t worry about parking. There is a free lot right across the street that is designated parking for the establishment. Stop in Monday thru Friday from 11am to 2pm – Friday night the bar is open from 4pm until… well… you never really know. There are always featured specials at the Nortel… that is, aside from the regulars that include soups, salads, club sandwiches, seafood, spaghetti, chicken and beef hot specialty sandwiches, wraps, wings, burgers and sides. There’s even a children’s menu.
The Nortel Bar and Grill is located at 732 Hertel Avenue. 716.877.9495

Thu, 14 Jul 2022 22:37:00 -0500 en-US text/html
Killexams : How to Remotely Access Your Voicemail on a Nortel Norstar Phone System

Today’s workforce is highly mobile. Therefore, requirements for business phone systems have changed over the years. Requirements to facilitate mobility include the ability for users to remotely access voicemail when they are out of the office. If your company uses the Nortel Norstar system, you can check your business voicemail when you are away using your number, extension and your voicemail password.

  1. Call the main number for your office’s switchboard from a remote location.

  2. Transfer to your extension. Some companies configure the phone system so an operator connects you to your extension, yet others enable access by providing you with a prompt. At the prompt, enter the number of your extension.

  3. Press the “*” (star or asterisk) button on the phone’s keypad twice while the recorded greeting plays.

  4. Key in the number for your voicemail, your extension and your voicemail password on the phone’s keypad. Enter these numbers one right after the other.

  5. Listen to your voicemail messages.

Tue, 17 Jul 2018 16:31:00 -0500 en-US text/html
Killexams : Avaya Solidifies Hold in Health Care With Acquisition No result found, try new keyword!Avaya's aquisition of Nortel's healthcare division will allow ... Linked into the hospital discharge system, it can coordinate all the manual work and send patients to the appropriate facility. Sat, 30 Jul 2022 12:00:00 -0500 en-us text/html Killexams : Computer Accessories No result found, try new keyword!Nortel Networks is looking to China as a major area of growth for its telecommunications equipment, especially for its Net telephony and third-generation wireless products. Wed, 23 Feb 2022 05:42:00 -0600 en text/html Killexams : SaaS DR/BC: If You Think Cloud Data is Forever, Think Again

Key Takeaways

  • SaaS is quickly becoming the default tool for how we build and scale businesses. It’s cheaper and faster than ever before. However, this reliance on SaaS comes with one glaring risk that’s rarely discussed.
  • The “Shared Responsibility Model” doesn’t just govern your relationship with AWS, it actually impacts all of cloud computing. Even for SaaS, users are on the hook for protecting their own data.
  • Human error, cyber threats and integrations that have gone wrong are the main causes of data loss in SaaS. And it’s not uncommon, in one study, about 40% of users have said they have lost data in SaaS applications.
  • It’s possible to create your own in-house solution to help automate some of the manual work around backing-up SaaS data. However, there are limitations to this approach and none of them will help you restore data back to its original state.
  • A data continuity strategy is essential in SaaS, otherwise you may be scambling to restore all information you rely on each and every day. 

The Cloud is Not Forever and Neither is Your Data 

When I began my career in technical operations (mostly what we call DevOps today) the world was dramatically different. This was before the dawn of the new millennium. When the world’s biggest and most well-known SaaS company, Salesforce, was operating out of an apartment in San Francisco. 

Back then, on-premise ruled the roost. Rows of towers filled countless rooms. These systems were expensive to set up and maintain, from both a labour and parts perspective. Building a business using only SaaS applications was technically possible back then but logistically a nightmare. On-prem would continue to be the default way for running software for years to come. 

But technology always progresses at lightspeed. So just three years after Salesforce began preaching the “end of software”, Amazon Web Services came online and changed the game completely.

Today a new SaaS tool can be built and deployed across the world in mere days. Businesses are now embracing SaaS solutions at a record pace. The average small to medium-sized business can easily have over 100 SaaS applications in their technology stack. Twenty years ago, having this many applications to run a business was unthinkable and would have cost millions of dollars in operational resources. However, at Rewind, where I oversee technical operations, I looked after our software needs with a modem and a laptop. 

SaaS has created a completely different reality for modern businesses. We can build and grow businesses cheaper and faster than ever before. Like most “too good to be true” things, there’s a catch. All this convenience comes with one inherent risk. It’s a risk that people rarely discussed in my early days as a DevOps and is still rarely talked about. Yet this risk is important to understand, otherwise, all the vital SaaS data you rely on each and every day could disappear in the blink of an eye.

And it could be gone for good. 

The Shared Responsibility of SaaS

This likely goes without saying but you rent SaaS applications, you don’t own them. Those giant on-prem server rooms companies housed years ago, now rest with the SaaS provider. You simply access their servers (and your data) through an operating system or API. Now you are probably thinking, “Dave, I know all this. So what?” 

Well, this is where the conundrum lies. 

If you look at the terms of service for SaaS companies, they do their best to ensure their applications are up and running at all times. It doesn’t matter if servers are compromised by fire, meteor strike, or just human error, SaaS companies strive to ensure that every time a user logs in, the software is available. The bad news is this is where their responsibility ends. 

You, the user, are on the hook for backing up and restoring whatever data you’ve entered and stored in their services. Hence the term “Shared Responsibility Model”. This term is most associated with AWS but this model actually governs all of cloud computing.

The above chart breaks down the various scenarios for protecting elements of the cloud computing relationship. You can see that with the SaaS model, the largest onus is on the software provider. Yet there are still things a user is responsible for; User Access and Data.  

I’ve talked to other folks in DevOps, site reliability, or IT roles in recent years and I can tell you that the level of skepticism is high. They often don’t believe their data isn’t backed up by the SaaS provider in real time. I empathize with them, though, because I was once in their shoes. So when I meet this resistance, I  just point people to the various terms of service laid out by each SaaS provider. Here is GitHub’s, here is Shopify’s and the one for Office 365. It’s all there in black and white.

The reason the Shared Responsibility Model exists in the first place essentially comes down to the architecture of each application. A SaaS provider has built its software to maximize the use of its operating system, not continually snapshot and store the millions or billions of data points created by users. Now, this is not a “one-size fits all scenario”. Some SaaS providers may be able to restore lost data. However, if they do, in my experience, it’s often an old snapshot, it’s incomplete, and the process to get everything back can take days, if not weeks. 

Again, it’s simply because SaaS providers are lumping all user data together, in a way that makes sense for the provider. Trying to find it again, once it’s deleted or compromised, is like looking for a needle in a haystack, within a field of haystacks.    

How Data Loss Happens in SaaS

The likelihood of losing data from a SaaS tool is the next question that inevitably comes up. One study conducted by Oracle and KPMG found that 49% of SaaS users have previously lost data. Our own research found that 40% of users have previously lost data. There are really three ways that this happens; risks that you may already be very aware of. They are human error, cyberthreats, and 3rd party app integrations. 

Humans and technology have always had co-dependent challenges. Let’s face it, it’s one of the main reasons my career exists! So it stands to reason that human inference, whether deliberate or not, is a common reason for losing information. This can be as innocuous as uploading a CSV file that corrupts data sets, accidentally deleting product listings, or overwriting code repositories with a forced push.

There’s also intentional human interference. This means someone who has authorized access, nuking a bunch of stuff. It may sound far-fetched but we have seen terminated employees or third-party contractors cause major issues. It’s not very common, but it happens.       

Cyberthreats are next on the list, which are all issues that most technical operations teams are used to. Most of my peers are aware that the level of attacks increased during the global pandemic, but the rate of attacks had already been increasing prior to COVID-19. Ransomware, phishing, DDoS, and more are all being used to target and disrupt business operations. If this happens, data can be compromised or completely wiped out. 

Finally, 3rd party app integrations can be a source of frustration when it comes to data loss. Go back and read the terms of service for apps connected to your favourite SaaS tool. They may save a ton of time but they may have a lot of control over all the data you create and store in these tools. We’ve seen apps override and permanently delete reams of data. By the time teams catch it, the damage is already done.

There are some other ways data can be lost but these are the most common. The good news is that you can take steps to mitigate downtime. I’ll outline a common one, which is writing your own backup script for a Git.

One approach to writing a GitHub backup script

There are a lot of ways to approach this. Simply Google “git backup script” and lots of options pop up. All of them have their quirks and limitations. Here is a quick rundown of some of them.

Creating a local backup in Cron Scripts

Essentially you are writing a script to clone a repo, at various intervals, using cron jobs. (Note the cron job tool you used will depend on the OS you use). This method essentially takes snapshots over time. To restore a lost repo, you just pick the snapshot you want to bring back.  For a complete copy use git clone --mirror to mirror your repositories. This ensures all remote and local branches, tags, and refs get included. 

The pros of using this method are a lack of reliance on external tools for backups and the only cost is your time. 

The cons are a few. You actually won’t have a full backup. This clone won’t have hooks, reflogs, configuration, description files, and other metadata. It’s also a lot of manual work and becomes more complex if trying to add error monitoring, logging, and error notification. And finally, as the snapshots pile up, you’ll need to consider accounts for cleanups and archiving.

Using Syncthing

Syncthing is a GUI/CLI application that allows for file syncing across many devices. All the devices need to have Syncthing installed on them and be configured to connect with one another. Keep in mind that syncing and backing up are different, as you are not creating a copy, but rather ensuring a file is identical across multiple devices.  

The pros are that it is free and one of the more intuitive methods for a DIY “backup” since it provides a GUI.  Cons: Syncthing only works between individual devices, so you can’t directly back up your repository from a code hosting provider. Manual fixes are needed when errors occur. Also, syncing a git repo could lead to corruption and conflicts of a repository, especially if people work on different branches. Syncthing also sucks up a lot of resources with its continuous scanning, hashing, and encryption. Lastly, it only maintains one version, not multiple snapshots. 

Using SCM Backup

SCM Backup creates an offline clone of a GitHub or BitBucket repository. It makes a significant difference if you are trying to back up many repos at once. After the initial configuration, it grabs a list of all the repositories through an API. You can also exclude certain repos if need be. 

SCM lets you specify backup folder location, authentication credentials, email settings, and more. 

Here’s the drawback though, the copied repositories do not contain hooks, reflogs, or configuration files, or metadata such as issues, pull requests, or releases.  And configuration settings can change across different code hosting providers. Finally, in order to run it, you need to have .NET Core installed on your machine.

Now that’s just three ways to backup a git repository. As I mentioned before, just type a few words into Google and a litany of options comes up. But before you get the dev team to build a homegrown solution, keep these two things in mind.

First, any DIY solution will still require a significant amount of manual work because they only clone and/or backup; they can’t restore data. In fact, that’s actually the case with most SaaS tools, not just in-house backup solutions. So although you may have some snapshots or cloned files, it will likely be in a format that needs to be reuploaded into a SaaS tool. One way around this is to build a backup as a service program, but that will likely eat up a ton of developer time. 

That brings us to the second thing to keep in mind, the constantly changing states of APIs. Let’s say you build a rigorous in-house tool: you’ll need a team to be constantly checking for API updates, and then making the necessary changes to this in-house tool so it’s always working. I can only speak for myself, but I’m constantly trying to help dev teams avoid repetitive menial tasks. So although creating a DIY backup script can work, you need to decide where you want development teams to spend their time.

Data Continuity Strategies for SaaS

So what’s the way forward in all of this? There are a few things to consider. And these steps won’t be uncommon to most technical operations teams. First, figure out whether you want to DIY or outsource your backup needs. We already covered the in-house options and the challenges it presents. So if you decide to look for a backup and recovery service, just remember to do your homework. There are a lot of choices, so as you go through due diligence, look at reviews, talk to peers, read technical documentation and honestly, figure out if company X seems trustworthy. They will have access to your data after all.  

Next, audit all your third-party applications. I won’t sugarcoat it, this can be a lot of work. But remember the “terms of service” agreements? There are always a few surprises to be found. And you may not like what you see. I recommend you do this about once a year and make a pro/cons list. Is the value you get from this app worth the trade-off of access the app has? If it’s not, you may want to look for another tool. Fun fact: Compliance standards like SOC2 require a “vendor assessment” for a reason. External vendors or apps are a common culprit when it comes to accidental data loss.

And finally, limit who has access to each and every SaaS application. Most people acknowledge the benefits of using the least privileged approach, but it isn’t always put into practice. So make sure the right people have the right access, ensure all users have unique login credentials (use a password manager to manage the multiple login hellscape) and get MFA installed.

It’s not a laundry list of things nor is it incredibly complex. I truly believe that SaaS is the best way to build and run organizations. But I hope now it’s glaringly obvious to any DevOps, SRE or IT professional that you need to safeguard all the information that you are entrusting to these tools. There is an old saying I learned in those early days of my career, “There are two types of people in this world – those who have lost data and those who are about to lose data”. 

You don’t want to be the person who has to inform your CIO that you are now one of those people. Of course, if that happens, feel free to send them my way. I’m certain I’ll be explaining the Shared Responsibility Model of SaaS until my career is over!  

About the Author

Dave North has been a versatile member of the Ottawa technology sector for more than 25 years. Dave is currently working at Rewind leading 3 teams (devops, trust, IT) as the director of technical operations. Prior to Rewind, Dave was a long time member of Signiant, holding many roles in the organization including sales engineer, pro services, technical support manager, product owner and devops director. A proven leader and innovator, Dave holds 5 US patents and helped drive Signiant’s move to a cloud SAAS business model with the award winning Media Shuttle product. Prior to Signiant, Dave held several roles at Nortel, Bay Networks and ISOTRO Network Management working on the NetID product suite. Dave is fanatical about cloud computing, automation, gadgets and Formula 1 racing.

Thu, 09 Dec 2021 14:12:00 -0600 en text/html
Killexams : Nortel Networks Corp (NRTLQ)

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Sun, 05 Jun 2022 10:16:00 -0500 en-US text/html
Killexams : Xerox Holdings Confirms Steven Bandrowczak As CEO No result found, try new keyword!During his career, Steve has held senior leadership positions for various multi-billion-dollar global companies, including Avaya, Nortel, Lenovo, DHL and Avnet. Wed, 03 Aug 2022 01:38:00 -0500 text/html Killexams : Should You Buy Shopify (TSX:SHOP) Stock Before Earnings?

Shopify (TSX:SHOP)(NYSE:SHOP) is an Ottawa-based company that provides a commerce platform to North American and international customers. This e-commerce stock proved to be one of the most explosive tech stocks in North America in the latter half of the 2010s. However, it has suffered a major downturn in the first half of this new decade.

Indeed, the company has drawn comparisons to another Canadian cautionary tale: Nortel. Nortel was a telecommunications and data networking equipment giant that saw its stock erupt during the dot-com bubble in the late 1990s. At its height, Nortel stock accounted for more than a third of the total valuation of all companies on the TSX. Its price would crater in response to falling revenues, taking many investors down with it.

Can Shopify stage a comeback after this brutal stretch? Let’s dive in.

Why this top tech stock has been throttled over the past year

Shares of this tech stock have plunged 69% in 2022 as of close on July 25. The stock is down 76% in the year-over-year period. Shopify does deserve some leeway as the TSX Index has suffered from broader volatility since the beginning of the spring season.

Fortunately, the oil and gas price boom saw the energy heavy TSX Index avoid a more significant downturn. That phenomenon reared its head in the most recent trading session. The S&P/TSX Composite Index increased 121 points on the day, with the energy sector delivering a 3.5% bump. However, the S&P/TSX Capped Information Technology Index suffered a 1.27% decline.

Beyond market volatility, Shopify has also been the target of short-sellers. Short-selling involves borrowing a security and selling it with the intent of buying it at a lower price at a later date. When it works, the short-seller can collect profits after repaying the loan. Prominent short-seller Andrew Left of Citron Research called the company “dirty” and a “get-rich-quick scheme.” There have been looming questions over its financial reporting regarding its merchants in recent years. Shrinking profit margins after the COVID-19 pandemic bump have also drawn the ire of analysts.

Is there reason for optimism for Shopify going forward?

In the middle of July, the company announced that it had cancelled fall internships and put a hold on recruiting. Shopify is not alone in the tech sector. Many companies have scaled back on hiring in the face of soaring inflation, rising interest rates, geopolitical tensions, and economic uncertainty.

Shopify is set to release its second-quarter 2022 results on July 27. This will be a big report for the company as it battles a brutal pullback. Consumers are feeling the squeeze of inflation, which is bad news for e-commerce companies that rely on an active client base. A recession, even a mild one, will be very poor timing for this company in the first half of this decade.

In Q1 2022, Shopify delivered total revenue growth of 22% to $1.2 billion. Meanwhile, adjusted gross profit jumped 14% to $646 million. Its adjusted net income was reported at $25.1 million, or $0.20 per diluted share — down from $254 million, or $2.01 per diluted share, in the previous year. Overall, the company experienced a dramatic decline in revenue and earnings-growth rates compared to past years.

Shopify: Should you buy today?

Shares of this tech stock are trading in solid value territory compared to its industry peers. Meanwhile, it is still on track for strong earnings growth. That said, Shopify is facing mounting competition in the e-commerce space. Investors should keep a close eye on its upcoming earnings report that could make or break its stock performance for the rest of the summer. I’m staying on the sidelines when it comes to this tech stock in the near term.

Tue, 26 Jul 2022 04:24:00 -0500 Ambrose O'Callaghan en-CA text/html
Killexams : The Wow! factor is alive and well

Kanata North remains on the cutting edge when it comes to the next generation of semiconductor technologies. And why wouldn’t it be? That pedigree is rich and runs deep, all the way back to Bell Northern Research and the old Mitel Networks. 

Take GaN Systems, co-founded eight years ago by CTO John Roberts and President Girvan Patterson. Their resumes, and those of others on the management team, are a who’s who of the big local names in the industry through the ’90s and the 2000s. 

That’s no accident. GaN’s potentially game-changing gallium nitride switching and power conversion portfolio was prototyped in the National Research Council of Canada’s own test foundry acquired from Nortel Networks. When it came time to build and expand GaN’s team, the founders had no problem finding a great pool of proven local talent from which to draw. 

Heritage of the area 

But it isn’t just talent – a corporate culture that fosters open creativity has also carried over from those old days. 

“That’s a heritage of the technology sector here that’s still alive and well,” Patterson said. 

Sidense Corp. is another thriving player that’s taken advantage of creative culture and talent to grow its global clout in the vast market for embedded non-volatile memory. Its team pedigree includes Chipworks, MOSAID Technologies, Mitel Networks and ATMOS Corp. The company has been snapping up good memory people wherever it can find them. 

“If you’re a good circuit designer, you’re going to find employment here,” said Tomasz Wojcicki, VP of Customer Engineering Support. 

Even semiconductor multinationals that set up shop in Kanata North are looking for more than just another satellite office. They’re looking for a specialized local team to tackle hard problems no one else can. 

Rocket science 

Take Taiwan Semiconductor Manufacturing Company Limited. TSMC has grown over the past two decades from a startup in chip manufacturing into the world’s largest independent foundry. Roughly half of the chips found in mobile phones today are manufactured at TSMC. 

TSMC’s Ottawa team works on next-generation memory compilers, high-speed interconnects, and perhaps most impressive of all, test systems that are embedded on the chip itself. 

“We have here one of the top groups in the world that is working on stuff that no one else has ever seen,” said Cormac O’Connell, Director of TSMC’s Ottawa Design Centre. “We’re literally doing rocket science here.” 


- Ottawa’s semiconductor industry (and you might even say Canada’s) began in 1969 when Nortel Networks forerunner Northern Electric created Microsystems International Ltd. (MIL). MIL produced one of the world’s earliest microprocessors, the MIL MF7114, and a series of early microcomputers using this chip. 

- MIL was also the place where future serial entrepreneurs Terry Matthews and Michael Cowpland met. The rest, as they say, is history. 

- Today’s chips can contain 10 billion devices, where a single atom out of place can have a dramatic impact on performance. What’s on a chip these days needed a whole server room 20 years ago. 

- GaN Systems’ gallium nitride compound chips replace conventional silicon-based electronic switches that just can’t meet spec for speed, temperature, voltage or current. Efficiency-improving applications range from high-performance auto engines and industrial to making your TV even thinner and getting rid of that brick on your laptop power cord. 

- As an independent foundry for hire, TSMC makes chips for fabless electronic companies so they don’t have to spend billions to set up their own foundries. This enables them to build products and compete against the likes of Samsung or Intel – companies that can afford to fabricate their own chips used in their branded system products. 

- Sidense Corp. is making waves with what might seem like an old, quaint technology – one-time programmable memory. But that supposed “limitation” provides one significant benefit – a tough layer of added security as more and more devices become connected through the Internet of Things. 

Learn more about why Kanata North is fertile ground in which to grow successful companies and find great talent, from semiconductors to software-as-a-service, at .

Thu, 14 Jul 2022 12:01:00 -0500 en text/html
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