EMC EMC Certifications DES-1D12 Questions & Answers

• Question 21:

  From which Dell EMC storage system can a Dell EMC PowerStore array natively import data?

  A. VNX

  B. PowerVault

  C. VMAX

  D. VNX2

  Correct Answer: D

  Reference: https://www.dell.com/support/manuals/en-my/powerstore-1000/pwrstr-import/importing-external-storage-to-powerstore-overview?guid=guid-6fef77c4-d4c9-49c6-8de2-efd67aa52ca5#:~:text=Importing%20external%20storage% 20to%20PowerStore%20is%20a%20migration%20solution%20tha t,Dell%20EMC% 20Unity%20Series

• Question 22:

  What hardware is available on all Dell EMC Midrange storage?

  A. NVMe disks

  B. SEDs

  C. 1 GbE I/O modules

  D. 25 GbE I/O modules

  Correct Answer: A

  Dell is providing native support of NVMe to the midrange of the market, which improves performance. Reference:https://www.datacenterknowledge.com/dell-emc/dell-launches-new-midrange-all-flash-enterprise-storage-arrays

• Question 23:

  A technical architect is helping a customer prepare for a data center maintenance window All applications must failover to the disaster recovery site The customer also wants to test their disaster recovery plan

  What PowerStore Manager replication option should be used to address the customer's need: and from which site should the option be run?

  A. Planned failover from target site

  B. Planned failover from source site

  C. Failover from target site

  D. Failover from source site

  Correct Answer: B

  In this scenario, the customer wants to test their disaster recovery plan and wants all applications to failover to the disaster recovery site. To accomplish this, the technical architect should use the planned failover option from the source site, the primary site. This will allow the customer to test their disaster recovery plan and ensure that all applications can be successfully failed over to the disaster recovery site. It's important to note that if the customer wants to failover to the disaster recovery site for maintenance and after that fail back to the primary site, the planned failover should be run from the target site.

• Question 24:

  What is a consideration when sizing a Dell EMC SC Series system for capacity?

  A. Read/Write ratio

  B. IOPS

  C. Page size

  D. RAID overhead

  Correct Answer: B

  (Input/Output Operations Per Second) is a key consideration when sizing a Dell EMC SC Series system for capacity. IOPS is a measure of the performance of a storage system, and a higher number of IOPS generally indicates better performance. Other factors to consider would be the number of disk drives, RAID configuration, and storage capacity required for the specific use case.

• Question 25:

  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

  Correct Answer: B

  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 26:

  Which Dell EMC Unity OE 5.0 enhancements improve asynchronous replication?

  A. NAS server mobility and Fan-out Replication

  B. GeoSync and NAS server mobility

  C. Cascade Replication and GeoSync

  D. Fan-out and Cascade Replication

  Correct Answer: D

  Dell EMC Unity OE version 5.0, asynchronously replicated file resources can also be configured in advanced replication topologies. This allows for configurations such as fan-out and cascading replication at the granularity of a NAS Server and its associated file resources. Reference:https://www.delltechnologies.com/asset/en-us/products/storage/industry-market/h17827-dell-emc-unity-operating-environment.pdf

• Question 27:

  Which optional I/O Module card type is supported for both Dell PowerStore T and Dell PowerStore X?

  A. 25GbE

  B. 8 Gb Fibre Channel

  C. 10GbEBaseT

  D. 32 Gb Fibre Channel

  Correct Answer: C

  Both Dell PowerStore T and Dell PowerStore X support the 10 GbE BaseT optional I/O module card type. This card provides 10 Gbps Ethernet connectivity and can be used to connect the storage array to a network. The other options are not supported by both models. 25 GbE and 32 Gb Fibre Channel are generally faster and used for high-performance systems, while 8 Gb Fibre Channel is an older standard, and not supported by Dell PowerStore T and Dell PowerStore X.

• Question 28:

  When enabling a multi-protocol NAS implementation on a Dell EMC PowerStore array, what is required for an end-to-end mapping of a UNIX system?

  A. Security ID (SID) and Active Directory (AD)

  B. User ID (UID) and Group ID (GID)

  C. Group ID (GID) and Active Directory (AD)

  D. Security ID (SID) and User ID (UID)

  Correct Answer: B

  In multiprotocol implementations (both SMB and NFS protocols enabled), an end�to-end mapping from Windows Security ID (SID) to UNIX User ID (UID) and Group ID (GID) is required.

• Question 29:

  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

  Correct Answer: C

  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 30:

  What is the recommended option when configuring Dell EMC PowerStore nodes for High Availability?

  A. Active/Active

  B. Active/Passive with AULA

  C. Synchronous Replication

  D. Active/Passive

  Correct Answer: A

  Reference:https://www.delltechnologies.com/asset/en-us/products/storage/industry-market/h18157-dell-emc-powerstore-clustering-high-availability.pdf