EMC E20-390 Online Practice Questions and Exam Preparation

EMC E20-390 Online Questions & Answers

• Question 311:

  What is a supported configuration for mixing HBAs on Linux hosts?

  A. Single and dual channel HBAs from the same vendor
  B. HBAs with different PCI interfaces from the same vendor
  C. HBAs with identical PCI interfaces from different vendors
  D. Dual and quad channel HBAs from different vendors
  A. Single and dual channel HBAs from the same vendor

• Question 312:

  A certain file-based application requires VNX file systems that do not share disk volumes with other applications. What must be done to meet this requirement?

  A. Disable slicing when creating the file system
  B. Create a thin-enabled file system
  C. Use classic LUNs with AVM instead of pool LUNs
  D. Manually auto extend the file system
  A. Disable slicing when creating the file system

• Question 313:

  What is the back-end bus speed, per lane, on the VNX series array?

  A. 2 Gb
  B. 4 Gb
  C. 6 Gb
  D. 8 Gb
  C. 6 Gb

• Question 314:

  An administrator tries to modify the quota settings on a CIFS share from a Windows Server 2003 host, but the Quota tab does not exist in the network drive properties. What could be a possible cause?

  A. Quotas can be managed only with Windows Server 2008
  B. The user does not have administrator privileges on this share
  C. Exporting is implemented at the file system subdirectory level on VNX OE for File.
  D. Windows users cannot modify the quota settings
  C. Exporting is implemented at the file system subdirectory level on VNX OE for File.

• Question 315:

  What is the preferred method for partitioning VNX FC LUNs attached to a Windows Server 2008 R2 host?

  A. Disk Management
  B. format
  C. fdisk
  D. vtoc
  A. Disk Management

• Question 316:

  Which VNX feature is used to reclaim unused storage space?

  A. LUN migration
  B. LUN shrink
  C. Thin provisioning
  D. RAID group defragment
  B. LUN shrink

• Question 317:

  A customer decides to decompress a LUN that was originally a thin LUN. What is the result of the decompression?

  A. Thin LUN
  B. Traditional LUN
  C. Storage pool Thick LUN
  D. Private LUN
  A. Thin LUN

• Question 318:

  A customer has an application that uses a small amount of capacity but has very high performance requirements. Their new VNX is fully virtually provisioned and uses FAST VP storage pools. The customer wants to configure the LUNs for

  this application on high performance storage.

  How should the LUNs be initially configured?

  A. Using the Highest Available Tier option.
  B. A traditional RAID-group LUN on Flash drives should be used.
  C. Using the Optimize for Pool Performance option.
  D. A traditional RAID-group LUN on SAS drives should be used.
  A. Using the Highest Available Tier option.

• Question 319:

  In a VNX array with FAST VP enabled, what is the size of the data slice (chunk) that can be relocated between tiers?

  A. 1 GB
  B. 2 GB
  C. 5 GB
  D. 10 GB
  A. 1 GB

• Question 320:

  What are characteristics of thin pool LUNs?

  A. Space is allocated when user data is written Uses slightly more capacity than the user data
  B. Simultaneously accessible through SPA and SPB All space is allocated at creation time
  C. Simultaneously accessible through SPA and SPB Uses slightly more capacity than the user data
  D. Provides active/passive host access LBAs are guaranteed physically contiguous
  A. Space is allocated when user data is written Uses slightly more capacity than the user data