EMC DES-1D12 Online Practice Questions and Exam Preparation

EMC DES-1D12 Online Questions & Answers

• Question 41:

  When sizing a Dell EMC Unity Hybrid array, what are considerations for growth?

  A. Port utilization and load balancing
  B. Cache utilization and hardware bottlenecks
  C. Latency and queue depth
  D. General capacity and active data
  A. Port utilization and load balancing

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  Explanation/Reference:

• Question 42:

  A systems administrator has deployed a Dell Unity XT 380F system with 15x 1.92 TB SSD drives, in a RAID 5 dynamic pool Shortly after deployment, the administrator wants to expand the capacity of the system and use larger drives to increase the density

  What will happen if the administrator adds 4x 3 84 TB SSD drives?

  A. Three of the drives will be added with a fourth reserved as spare
  B. The mixing of drive types is not supported and the operation will fail
  C. Only half of the capacity of the new drives will be available
  D. The full capacity of the drives will be available
  B. The mixing of drive types is not supported and the operation will fail

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  Explanation/Reference:

  Dell Unity XT systems does not support mixing different drive types in the same RAID group. Adding larger drives to an existing RAID group with smaller drives will cause the operation to fail. The administrator should create a new RAID group with the larger drives and then copy the data from the old RAID group to the new one.

• Question 43:

  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
  C. A source file resource replicating synchronously from Site A to Site B and replicating synchronously from Site A to SiteC

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  Explanation/Reference:

  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.

• Question 44:

  Recent legislation requires a government customer to enhance data security by utilizing D@RE with SED drivers and use Level 3 certified security. Which KMS product should be recommended for use with Dell EMC SC Series arrays?

  A. Dell EMC CloudLink
  B. StorSecure StorMagic
  C. Gemalto SafeNet K460
  D. Thales Vormetric VTE
  C. Gemalto SafeNet K460

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  Explanation/Reference:

  Reference: https://downloads.dell.com/manuals/all-products/esuprt_solutions_int/ esuprt_solutions_int_solutions_resources/s-solution-resources_white-papers108_en-us.pdf (9)

• Question 45:

  What is the minimum recommended amount of Flash capacity in a Dell EMC Unity 880 Hybrid pool?

  A. 5%
  B. 8%
  C. 10%
  D. 15%
  C. 10%

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  Explanation/Reference:

  Reference: https://www.delltechnologies.com/en-us/collaterals/unauth/white-papers/products/storage/h15093-dell-emc-unity-best-practices-guide.pdf (16)

• Question 46:

  What is a feature of Dell EMC Unity unified snapshots?

  A. Delta set extension
  B. Copy on First Access
  C. Redirect on Write
  D. Copy on First Write
  C. Redirect on Write

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  Explanation/Reference:

  Reference; https://www.delltechnologies.com/en-ba/collaterals/unauth/white-papers/products/storage/h15089-dell_emc_unity-snapshots_and_thin_clones.pdf (7)

• Question 47:

  A customer asks you about the maximum load of their new Dell EMC SC Series array. Which term should you use in response?

  A. MB
  B. IOPS
  C. CPU Cycles
  D. Latency
  B. IOPS

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  Explanation/Reference:

  Reference: https://downloads.dell.com/manuals/common/sc-series-performance-availability-best-practices-dell-emc-4024-bp-sc_en-us.pdf

• Question 48:

  What is the purpose of the NVMe NVRAM drives in a Dell EMC PowerStore 1000 array?

  A. Read cache and vaulting
  B. Read cache and base OS
  C. Write cache and base OS
  D. Write cache and vaulting
  D. Write cache and vaulting

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  Explanation/Reference:

  The base enclosure is an all-NVMe platform, capable of supporting NVMe SSD, NVMe SCM, and NVMe NVRAM drives. You can populate slots 0 through 20 with NVMe SSD or NVMe SCM drives. Slots 21 through 24 are reserved for NVMe NVRAM drives which serve as additional system write caching. PowerStore 1000 and PowerStore 3000 models contain two NVMe NVRAM drives in slots 23 and 24. Reference:https://www.delltechnologies.com/asset/en-us/products/storage/industry-market/h18149-dell-emc-powerstore-platform-introduction.pdf

• Question 49:

  What is the maximum number of snapshot rules that can be associated with a Dell PowerStore protection policy?

  A. 8
  B. 2
  C. 4
  D. 1
  C. 4

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  Explanation/Reference:

  https://www.dell.com/support/manuals/en-us/powerstore-5000/pwrstr-protect-data/protection-policies?guid=guid-c8ba3ba4-6374-4285-9727-900343f64ee2andlang=en-us#:~:text=Each%20protection%20policy%20can%20only,up%20to% 20four%20snapshot %20rules.

• Question 50:

  A Dell EMC Unity storage administrator needs to build a NAS server configuration to support failover between SPs and NAS resources. What is a term for this configuration?

  A. Local Replication
  B. IP Multi-tenancy
  C. LACP
  D. Separate IP Switches
  C. LACP

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  Explanation/Reference:

  Reference: https://www.delltechnologies.com/en-ae/documentation/unity-family/unity-p-replication-config/02-unity-rep-br-workflow.htm