E20-393 EMC Exam Questions and Free Practice Test

Question 25

On which systems is Quality of Service available?

A. Physical Unity systems only

B. UnityVSA systems only

C. Physical Unity and UnityVSA systems

D. All Flash Unity systems only

Correct Answer:C
UnitVSA features Host I/O limits, also known as Quality of service.
The EMC [Physical] Unity array comes with a pack of new hardware and software features focusing on the true unification:
References:
https://www.presidio.com/blog/1554/technical-summary-emc-unification-with-unity

Question 26

When can a file system be defined as thin or thick?

A. Only when creating the file system

B. Any time after the file system has been created

C. Only when adding host access to the file system

D. Only when enabling data reduction on the file system

Correct Answer:B

Question 27

When a storage resource has a snapshot taken of it, where are writes to the storage resource written?

A. New space allocated from the storage resource parent pool

B. New space allocated in 256 MB stripes from FAST Cache

C. Existing space of the storage resource

D. Existing space from the Reserves LUN Pool

Correct Answer:A

Question 28

Which operation can be performed on the General tab of the LUN Properties page?

A. Extend the LUN

B. Grant Host access

C. Replicate the LUN

D. Set Host I/O limits

Correct Answer:A

Question 29

While examining the health status of a Dell EMC Unity array, the administrator notices the internal SSD is in a faulted state.
Which condition caused this fault?

A. BBU is not charged enough to keep the SSD powered on

B. There are only 5% of the spare blocks remaining on the SSD

C. SP Cache had too many dirty pages to copy to the SSD

D. There are no spare blocks remaining on the SSD

Correct Answer:D

Question 30

In an asynchronous replication, what is the maximum number of replicated NAS Servers supported for the Dell EMC Unity XT 380 series?

A. 64

B. 90

C. 128

D. 256

Correct Answer:B

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