EMC E20-390 Online Practice Questions and Exam Preparation

EMC E20-390 Online Questions & Answers

• Question 161:

  In which environment is a large element size a consideration when creating RAID 5 (4+1) groups?

  A. Large-block random reads
  B. Large-block sequential reads
  C. Large-block random writes
  D. Large-block sequential writes
  A. Large-block random reads

• Question 162:

  A storage administrator is adding a third VNX system (VNX3) to a secondary site. The third system will be part of an active/active VNX IP replicating cluster. The administrator has set up the usermapper as a secondary usermapper (VNX2) pointing to the primary usermapper (VNX1).

  When will data on the secondary usermapper (VNX2) get updated if a new unmapped user is accessing the new VNX system (VNX3)?

  A. Not until the user accesses the CIFS server located on VNX2
  B. As soon as the primary usermapper (VNX1) has generated an entry for the user
  C. At 0:00 AM every night when the primary usermapper (VNX1) updates all the secondary usermappers (VNX2/VNX3)
  D. As soon as an export of the database from the primary usermapper (VNX1) is imported to the VNX2 usermapper
  A. Not until the user accesses the CIFS server located on VNX2

• Question 163:

  Which optional software is commonly installed to provide full high availability from a Windows host system to a VNX array?

  A. Adapter Firmware Upgrade
  B. Emulex Configuration Utility
  C. Navisphere Agent
  D. PowerPath
  A. Adapter Firmware Upgrade

• Question 164:

  What LUN type can be used to configure a metaLUN?

  A. Traditional LUN
  B. Thick LUN
  C. Thin LUN
  D. All LUN types are supported
  A. Traditional LUN

• Question 165:

  A VNX storage administrator adds some hosts with the read-only option to an existing NFS share. After a while, some users report that they are unable to write to this NFS export anymore. What is the most likely cause?

  A. Required clients have not been added to the read/write option
  B. Users are connected to the Linux hosts specified in the read-only settings
  C. Entire subnet has been set to read-only
  D. Wrong IP address has been set in the read-only option
  A. Required clients have not been added to the read/write option

• Question 166:

  Refer to the Exhibit.

  

  What is the SavVol size for the "fs16" file system?

  A. 2 GB
  B. 9 GB
  C. 10 GB
  D. 9 TB
  C. 10 GB

• Question 167:

  What is recommended for creating a CIFS server on a VNX?

  A. Virtual Data Mover
  B. Physical Data Mover
  C. Remote Data Mover
  D. Standby Data Mover
  A. Virtual Data Mover

• Question 168:

  You are configuring the reserve LUN pool on a new VNX. What LUN types can be added to the reserve LUN pool?

  A. Thick pool LUNs and traditional LUNs.
  B. Traditional LUNs only.
  C. Thick and Thin pool LUNs.
  D. All pool LUNs and traditional LUNs.
  A. Thick pool LUNs and traditional LUNs.

• Question 169:

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

  A. eth0
  B. eth1
  C. eth2
  D. eth3
  B. eth1

• Question 170:

  Which back-end bus architecture is used in VNX?

  A. FC
  B. SCSI
  C. SAS
  D. SATA
  C. SAS