EMC E20-390 Online Practice Questions and Exam Preparation

EMC E20-390 Online Questions & Answers

• Question 321:

  Which statement is true regarding LUN migration within a VNX array?

  A. The source LUN remains unchanged after the copy completes.
  B. There may be a performance impact.
  C. You cannot cancel a LUN migration once it has started.
  D. The destination LUN retains the LUN ID and WWN when the copy completes.
  B. There may be a performance impact.

• Question 322:

  When installing additional VNX (File) systems within an existing environment, what is a requirement for Usermapper?

  A. The additional VNXs will require the default Primary Usermapper for Data Mover 2 to be changed to the Secondary Usermapper role.
  B. The additional VNXs will require the default Primary Usermapper for the Control Station to be changed to the Primary Usermapper role.
  C. The additional VNXs will require the default Primary Usermapper for the Control Station to be changed to the Secondary Usermapper role.
  D. The additional VNXs will require the default Primary Usermapper for Data Mover 2 to be changed to the Primary Usermapper role.
  A. The additional VNXs will require the default Primary Usermapper for Data Mover 2 to be changed to the Secondary Usermapper role.

• Question 323:

  What is the maximum number of supported ESX hosts that can share a LUN?

  A. 8
  B. 16
  C. 32
  D. 64
  C. 32

• Question 324:

  For LACP Load Balancing Considerations, what setting provides the best load balancing per host?

  A. Source/Destination TCP/UDP Ports.
  B. Source/Destination MAC Address
  C. Source/Destination IP Address.
  D. Session ID number.
  A. Source/Destination TCP/UDP Ports.

• Question 325:

  A storage administrator configured and presented storage pool LUNs to a Failover Cluster. A few weeks later, the cluster administrator reported the LUNs are too large and smaller LUNs are needed. What do you advise?

  A. Use the LUN shrink feature.
  B. The VLUN migration feature must be used.
  C. Use SAN Copy to migrate to smaller LUNs.
  D. The Failover Cluster will need to be rebuilt.
  A. Use the LUN shrink feature.

• Question 326:

  Refer to the Exhibit.

  

  What type of DAE is in the picture?

  A. DAE5S
  B. DAE6S
  C. DAE7S
  D. DAE3S
  A. DAE5S

• Question 327:

  In a VNX environment, which CIFS servers are candidates for interface stealing?

  A. Hosted on the same physical Data Mover
  B. Hosted on the standby Data Mover
  C. Hosted on different physical Data Movers
  D. Hosted on different virtual Data Movers
  A. Hosted on the same physical Data Mover

• Question 328:

  How does the VNX handle LUN ownership changes so that the access path to the LUN is available to both SPs simultaneously?

  A. By the host software being aware of SP ownership
  B. By the SPs sharing ownership of the LUNs
  C. By using ALUA Failover Mode
  D. By the LUN being trespassed.
  C. By using ALUA Failover Mode

• Question 329:

  How many storage groups can a host belong to in an array?

  A. 2
  B. 4
  C. 6
  D. 1
  D. 1

• Question 330:

  A company is currently hosting an ISP service. For security reasons, they want to have different usermappers for each of their customers. Is this solution possible?

  A. Yes, but only for each Data Mover.
  B. Yes, by creating a unique usermapper on each VDM.
  C. No, but only for one primary usermapper per system.
  D. No, but only for one primary usermapper per site.
  A. Yes, but only for each Data Mover.