DES-1D12 questions - Specialist - Technology Architect, Midrange Storage Solutions Updated: 2023
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DES-1D12 Specialist - Technology Architect, Midrange Storage Solutions
Exam Code : DES-1D12
Exam Name : Specialist - Technology Architect, Midrange Storage Solutions
Duration : 120 minutes
Questions : 60
Passing Score : 60
Dell EMC Midrange Architectures - Describe the Unity and Unity XT hardware (e.g., enclosures, I/O components, storage media options)
- Explain Unity and Unity XT storage resources and features (e.g., dynamic pools, RAID functions)
- Describe SC Series storage resources, connectivity options (e.g., RAID, Consistency Groups, SSD, HDD options)
- Describe the controller options available in the SC Series models and related use cases
- Describe the PowerStore hardware components and their functions (e.g., controller and expansion enclouses models, I/O expansion modules, internal components)
- Describe the PowerStore resources and features (e.g., caching and data reduction mechanisms, NVMe and SSD options, PowerStore manager GUI)
Dell EMC Midrange Product Solutions - Describe how to provision and access Unity storage, including Block, Files, and VMware datastores
- Identify Unity advanced features for Block storage (e.g. FAST Suite, D@RE, host I/O limit availability, thin clones)
- Identify Unity advanced features for File storage (e.g. IP Multi-tenancy, Advanced Static Routing, IP Packet Reflect)
- Describe Unity Data Protection (e.g., Snapshots, Replication, and Snapshot Replication architecture) solutions and use cases
- Describe Unity Data Mobility features, requirements, and use cases
- Identify key features of the SC Series operating system
- Describe SC Series cross-platform replication functionality and use cases
- Describe PowerStore Data Services and how to provision and access storage via block, files, and VMware datastores
- Describe the PowerStore load and resource balancing capabilities and PowerStore replication capabilities
- Describe PowerStore Data Protection and Data Security (e.g., Snapshots, Consistency Groups, Thin Clones) features and use cases
- Describe PowerStore HA features, non-disruptive upgrades and migration options requirements and use cases
- Compare and contrast similar features between Unity, SC Series and PowerStore solutions
Dell EMC Midrange Best Practices, Sizing, and Design
- Apply Dell EMC midrange best practice recommendations for data service, system, storage, and host application configurations
- Describe sizing and design considerations for Unity, SC Series, and PowerStore
- Describe how to size and design an SC or Unity solution for performance, capacity, security, and resilience
- Describe the data gathering methods to size and design an SC Series solution
- Describe the tools and resources available to size and design Unity and SC Series solutions
- Explain how to size an SC Series solution that includes Tiers 1-3, storage requirements, front-end and back-end connections, and common use cases
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Specialist - Technology Architect, Midrange Storage
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Question: 44
A Windows client using the SMB protocol is trying to access a multiprotocol file system from a Dell Unity XT NAS server. The local
group database was checked and no mapping was found.
What is the next step in the SID to UID resolution process?
A. The Windows user access is removed
B. The domain controller is checked
C. The Windows user is mapped to the default UNIX account
D. Secmap is checked
Answer: B
Explanation:
When a Windows client uses the SMB protocol to access a multiprotocol file system from a Dell Unity XT NAS server, the SID (Security
Identifier) of the Windows user is mapped to a UID (User Identifier) on the UNIX file system. If no mapping is found in the local group
database, the domain controller is checked to see if the SID is present there.
The domain controller can provide the information needed to map the SID to the corresponding UID on the file system, allowing the
Windows user to access the files. If the SID is not present in the domain controller, the Windows user’s access would be removed.
Question: 45
Which onboard Dell PowerStore components does the LCC interface sit between?
A. HDD drives and CPU board
B. SCM drives and PCIe
C. SCM drives and SCSI drives
D. CPU board and NVMe drives
Answer: D
Explanation:
The LCC interface sits between the CPU board and the NVMe drives onboard Dell PowerStore components. The LCC interface is
responsible for controlling the PCIe links between the CPU board and NVMe drives and allows for communication between the two. It
also provides additional features such as error correction and power management for the NVMe drives.
Question: 46
DRAG DROP
Match each Dell EMC Unity feature with its destination.
Answer:
Question: 47
A Dell EMC PowerStore customer plans to migrate storage volumes across appliances within a cluster. They want to use minimal effort to
ensure that the appliance avoids reaching full capacity.
Which method is recommended?
A. Live Migrate
B. Assisted Migration
C. Resource Balance
D. Volume Placement
Answer: B
Explanation:
Assisted migration – In the background, the system periodically monitors storage resource utilization across the appliances. Migration
recommendations are generated based on factors such as drive wear, appliance capacity, and health. If you accept a migration
recommendation, a migration session gets automatically created.
Reference: https://www.dell.com/support/manuals/en-pk/powerstore-1000t/pwrstr-cfg-vols/migrate-storage-resources-to-another-appliance
?guid=guid-2c5f6014-60e4-43ee-928f-b537c59da869&lang=en-us
Question: 48
What is a benefit of using a performance assessment tool?
A. Retrieves workload metrics from all storage systems
B. Provides performance statistics in a structured postgres database
C. Retrieves the performance archives using the Unity Data Collection
D. Provides automated performance statistics in chart and table format
Answer: D
Explanation:
A performance assessment tool is used to evaluate the performance of storage systems and provide statistics that can be used to identify
and troubleshoot performance issues. One of the benefits of using a performance assessment tool is that it provides automated performance
statistics in chart and table format, making it easy to understand performance metrics and identify any potential issues. This allows the user
to quickly identify and address any bottlenecks in the system, and make adjustments to Improve performance.
Question: 49
A storage administrator plans to complete a technology refresh from a Dell EqualLogic PS6100 to a Dell EMC PowerStore array. The
affected hosts are running native MPIO.
What is the recommended method to support an import to PowerStore?
A. Install DSITV on the hosts
B. Install EQL Hit Kit on the hosts
C. Use Dell Storage Manager and select Online Import
D. Install PowerStore ImportKit on the hosts
Answer: D
Explanation:
An install of the PowerStore ImportKIT is required on the hosts to support import to PowerStore.
Reference: https://docplayer.net/188347142-Dell-emc-powerstore-importing-external-storage-to-powerstore-guide.html
Question: 50
What component or feature is provided by both the Dell EMC PowerStore 1000T array and the Dell EMC Unity XT 380 Series array?
A. Container Integration
B. Configured Block with Hypervisor
C. Unified System
D. NVMe disks
Answer: C
Explanation:
"When positioning the 380 and 380F, keep in mind that they are not NVMe-ready and will not be upgradeable to support NMVe in the
future.".
Question: 51
Which describes the Dell Unity XT MetroSync replication topology?
A. A source block resource replicating synchronously from Site A to Site B and replicating synchronously from Site A to Site C
B. A source file resource replicating synchronously from Site A to Site B and replicating asynchronously from Site A to Site C
C. A source file resource replicating synchronously from Site A to Site B and replicating synchronously from Site A to SiteC
D. A source block resource replicating synchronously from Site A to Site B and replicating asynchronously from Site A to Site C
Answer: C
Explanation:
Dell Unity XT MetroSync replication topology is a multi-site replication solution that allows you to replicate data synchronously between
two or more Unity XT systems. In this topology, a source file resource is replicated synchronously from Site A to Site B, and also
replicated synchronously from Site A to Site
C. This means that data is written to the primary site and immediately replicated to the secondary site, ensuring that both sites have an
exact copy of the data at all times. This type of topology is useful in cases where data loss is not acceptable and a zero RPO is needed.
This topology ensures that the data is fully protected and that the environment is highly available, as in case of a primary site failure, the
secondary site can take over.
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