EMC Midrange Storage Solutions DES-1D11 Questions & Answers

• Question 91:

  Which Dell EMC Unity component holds the contents of write cache upon the loss of AC power?

  A. M.2 SSD drive

  B. SP memory

  C. Vault disk 0

  D. Vault disks 0_3

  Correct Answer: A

  Reference: https://www.emc.com/collateral/white-papers/h15084-dell-emc-unity-introduction-to-theplatform.pdf (13)

• Question 92:

  What is a benefit of using single-tier Flash with Dell EMC SC Series?

  A. Support for write-intensive and read-intensive SSDs in the same tier

  B. RAID 5/RAID 6 is converted to RAID 10 for increased efficiency

  C. Snapshot data is sent to RAID 10 write-intensive SSDs to optimize capacity

  D. Writes are sent to RAID 10 write-intensive SSDs for better performance

  Correct Answer: A

• Question 93:

  Which feature controls the access to Dell EMC Unity storage resources using policies with throughput and bandwidth thresholds?

  A. Quality of Service

  B. Data Progression

  C. Quotas

  D. FAST VP

  Correct Answer: C

• Question 94:

  A Dell EMC SC180 is currently populated with 4 SSDs and 24 HDDs, totaling 28 disks. What is the minimum number of disks that can be licensed for expansion?

  A. 10

  B. 14

  C. 20

  D. 28

  Correct Answer: B

  The SC180 enclosure can be connected to a SCv2080 to add additional storage beyond the base unit capacity. ?The maximum number of drives that can be part of a SCv2080 as of SCOS release 7.1 is 168. ? The SC180 enclosure contains 84 drive slots. ?The minimum number of spinning (HDDs) or solid state (SSD) drives in an SC180 is 28. Drives can only be added in increments of 14. ?The SC180 is only supported as an expansion unit with the SCv2080. ?They are not sold separately. ?If you are familiar with the SC280 enclosure, the SC180 is similar but the enclosures are not interchangeable. ?The SC280 can be sold separately but only works with an SC4020, SC8000 or SC9000. ?It will not work on a SCv2080.

• Question 95:

  Which Dell EMC Unity feature provides file data isolation by using VLAN tagging?

  A. Access Logix

  B. LUN Masking

  C. IP Multi-tenancy

  D. IP Packet Reflect

  Correct Answer: C

  Reference: https://www.emc.com/collateral/white-papers/h15572-dell-emc-unity-nas-capabilities.pdf (11)

• Question 96:

  A customer wants to provide file systems for two performance-intensive database applications on a Dell EMC Unity 500. What is the recommended File storage configuration to balance the system performance?

  A. Multiple file systems for each application Access-based enumeration enabled on file system shares

  B. Single NAS server with multiple interfaces Define a preferred interface for outgoing communications

  C. File systems created from different storage pools Client-side caching of offline files enabled on file system shares

  D. Separate NAS servers on each Storage Processor Provide storage for each application from separate NAS servers

  Correct Answer: A

• Question 97:

  You are designing a solution for a customer who is sensitive to capacity needs. In addition, the environment consists of large read request I/O characteristics. Which Dell EMC midrange storage solution will meet the customer's requirements?

  A. Unity All-Flash: Striping RAID, Dynamic Pool, and Flash 2 drives SC Series: Data Progression and write-intensive SSDs on Tier 1

  B. Unity All-Flash: Parity RAID, FAST VP, and FAST Cache SC Series: FastTrack and read-intensive SSDs on Tier 1

  C. Unity All-Flash: Parity RAID, Dynamic Pool, and Flash 3 drives SC Series: Data Progression and read-intensive SSDs on Tier 1

  D. Unity All-Flash: Striping RAID, FAST VP, and FAST Cache SC Series: FastTrack and read-intensive SSDs on Tier 1

  Correct Answer: B

• Question 98:

  What is recommended to maximize system performance on Dell EMC Unity systems?

  A. Avoid distributing host connections across front-end ports

  B. Use LACP for iSCSI connectivity

  C. Build storage pools with many drives

  D. Build storage pools with fewer drives

  Correct Answer: C

  Reference: https://www.emc.com/collateral/white-papers/h15093-dell-emc-unity-best-practices-guide.pdf

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• Question 99:

  Which Dell EMC Unity function does the File Import feature provide?

  A. Hydrates compressed Unity file systems when tiering to the Cloud with the Cloud Tiering Appliance

  B. Migrates VNX NFSv3 configured VDMs and the associated file systems to a Unity NAS server

  C. Replicates file-based VVols between two Unity systems for load balancing

  D. Moves NFS datastores between two Unity systems during a VMware vMotion operation

  Correct Answer: B

  Reference: https://www.emc.com/collateral/white-papers/h15163-emc-unity-migration-technologies.pdf

• Question 100:

  A Dell EMC SC Series customer has purchased the Storage Optimization bundle and wants to ensure that Data Progression works efficiently. Which snapshot schedule conforms to best practice when using Data Progression?

  A. Daily snapshot with an expiration of no more than 23 hours

  B. Daily snapshot with an expiration of exactly 24 hours

  C. Daily snapshot with an expiration of at least 25 hours

  D. Daily snapshot configured with no expiration time

  Correct Answer: B