EMC EMC Specialist E20-390 Questions & Answers

• Question 291:

  When a LUN is bound on a VNX, which process is enabled by default and has a very low impact on performance?

  A. NAS Database Backup

  B. ASAP Rebuild Priority

  C. Sniff Verify

  D. Background Verify

  Correct Answer: C

• Question 292:

  Which virtual network device creates an active/standby relationship with other physical or virtual devices on a VNX Data Mover?

  A. VLAN tagging

  B. FSN

  C. LACP

  D. Ethernet channel

  Correct Answer: B

• Question 293:

  While using SnapView snapshots, a host attempts to write to a snapshot with an active session. What will happen if the chunk is not already in the RLP?

  A. Write requests are not allowed to a snapshot with an active session

  B. Data is written to the snapshot and will be persistent beyond the end of the session

  C. Write requests are allowed. The new data is written to the RLP

  D. A new map entry is created. The original data and the new data are written to the RLP

  Correct Answer: D

  Explanation:

  

• Question 294:

  An administrator notices they are consistently running out of capacity on a file system that provides home directories for all of the users at the site. Further investigation shoes that a number of users are storing their music libraries on this file system. Which VNX features could be used to address these concerns?

  A. Storage quotas

  B. Single instancing

  C. File extension filtering

  D. Data deduplication

  Correct Answer: C

• Question 295:

  In order to connect to a VNX series array, you are tasked with implementing a CNA adapter on a ESX host. What is the minimum supported ESX version required for this type of adapter?

  A. 3.5 U4

  B. 3.5

  C. 4.0

  D. 4.1

  Correct Answer: A

• Question 296:

  What is the dafault file system type on a VNX system?

  A. ext2

  B. ext4

  C. uxfs

  D. mgfs

  Correct Answer: C

• Question 297:

  If a LUN is already a member of a storage group, how can an administrator modify the HLU?

  A. The administrator can modify the HLU without any restrictions

  B. The administrator cannot modify the HLU unless the LUN is unbound and rebound

  C. The administrator can modify the HLU only with the CLI

  D. The administrator can modify the HLU only if the LUN is removed and added back into the storage group

  Correct Answer: D

• Question 298:

  What is the difference between traditional raid groups and storage pools as they pertain to enabling FAST Cache?

  A. Write cache does not need to be disabled to configure FAST Cache on a storage pool

  B. FAST Cache cannot be enabled on individual LUNs in a storage pool

  C. FAST Cache can be enabled only at the RAID group level for traditionals LUNs

  D. Write cache does not need to be disabled to configure FAST Cache on a RAID group

  Correct Answer: B

• Question 299:

  What are the RAID group types available for the creation of a storage pool?

  A. RAID 5, RAID 6, RAID 1/0

  B. RAID 5, RAID3, RAID 1/0

  C. RAID 5 only

  D. RAID 6 only

  Correct Answer: A

• Question 300:

  Which interface on the VNX Control Station is used for the Peer Control Station?

  A. eth0

  B. eth1

  C. eth2

  D. eth3

  Correct Answer: B