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EMC DES-1D12: Specialist - Technology Architect Midrange Storage Solutions Exam

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Question 1

A storage administrator wants to do a tech refresh from a legacy EQL system to a new Dell EMC SC Series array. What is needed to correctly size the new array?

A. Latency

B. Peak IOPS information

C. Storage tiers

D. Contract support end date

Correct Answer:B
https://downloads.dell.com/manuals/common/sc-series-performance-availability-best-practices-dell-emc-4024-b
Sizing an SC Series array for performance requirements - pag.9)

Question 2

What is a characteristic of single-tier Flash on Dell EMC SC Series arrays?

A. Supports both write-intensive and read-intensive SSDs in the same tier

B. Snapshot data is kept on Tier1 in RAID 10 to optimize performance

C. Read only data is migrated to lower tiers when a snapshot is taken

D. Supports either write-intensive or read-intensive SSDs in the same tier

Correct Answer:D

Question 3

What provides data analytics for Dell EMC Midrange storage?

A. eLab Advisor

B. Unisphere Central

C. DSM

D. CloudIQ

Correct Answer:D

Question 4

To which bus is the Dell EMC Unity 880F DPE connected?

A. 49

B. 89

C. 99

Correct Answer:D
The DPE on 480/F, 680/F, and 880/F systems is internally connected to Bus 99 which is a separate bus than the first SAS expansion port that is connected to Bus 0. Therefore, the DPE is recognized by the system as Bus 99 Enclosure 0 while the first DAE connected to the first SAS expansion port would be Bus 0 Enclosure 0. This is different than X00/F, X50F, and 380/F systems. Furthermore, this means that the twenty-five drives in front of the DPE for 480/F, 680/F, and 880/F systems are internally recognized as Bus 99 Enclosure 0 Drive 0 – Bus 99 Enclosure 0 Drive 24. In Unisphere, the drives are seen DPE Drive 0 –DPE Drive 24

Question 5

Which QoS options are supported by Dell EMC Unity XT?

A. VMFS Datastore and Storage Pool

B. iSCSI and Attached Snapshot

C. Individual LUN and iSCSI

D. Individual LUN and Group LUN

Correct Answer:D

Question 6

When designing a Dell EMC SC Series system, which factors regarding general performance are important to understand?

A. Write size and latency

B. Block size and read size

C. Latency and queue depth

D. Transport and queue depth

Correct Answer:C
"Whether gathering information or designing a system, it is important to understand two commonly used terms: Latency and queue depth"

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