EMC E20-001 Online Practice Questions and Exam Preparation

EMC E20-001 Online Questions & Answers

• Question 21:

  What describes External DAS?

  A. Host provided content addressed objects
  B. Host provided data addressing
  C. Array provided global access volumes
  D. Array provided device management
  D. Array provided device management

• Question 22:

  Why would an iSCSI solution be implemented?

  A. Block storage over IP is much faster than FC
  B. All storage arrays supply Gage ports
  C. Leverages existing IP network infrastructure
  D. iSCSI HBAs are inexpensive
  A. Block storage over IP is much faster than FC

• Question 23:

  Which RAID type would you recommend for a business critical application with large sequential reads?

  A. RAID 3
  B. RAID 0
  C. RAID 5
  D. RAID 1
  A. RAID 3

• Question 24:

  In the diagram, which zone(s) represents the hard zone?

  

  A. Zone 1
  B. Zone 2
  C. Zone 1 and 3
  D. Zone 3
  B. Zone 2

• Question 25:

  How can you minimize the loss of uncommitted cached data when there is a cache failure?

  A. Cache mirroring
  B. Cache vaulting
  C. Cache coherency
  D. Cache flushing
  A. Cache mirroring

• Question 26:

  A local replica of an application was created with pointer based replication technology. What is a requirement to perform a successful restore?

  A. Save location size must be bigger that the size of all source devices
  B. Source devices must be larger than the target devices
  C. Save location size must be equal to the size of all source devices
  D. Source devices must be healthy
  D. Source devices must be healthy

• Question 27:

  Which network technology uses time division multiplexing for sending data from multiple subscribers as an optical signal?

  A. SONET
  B. T3
  C. Gigabit Ethernet
  D. DWDM
  A. SONET

• Question 28:

  What is a disadvantage of multi-mode fibre relative to single-mode fibre?

  A. Limited distances
  B. Limited to half-duplex
  C. Substantially higher cost
  D. Cabling complexity
  A. Limited distances

• Question 29:

  You have a backup and recovery solution in your environment. Several tapes are available. You want to use different tapes for each set of backup clients. Which backup component do you configure?

  A. Pool
  B. Group
  C. Catalog
  D. Storage Node
  A. Pool

• Question 30:

  Which event is known as a head crash?

  A. Two R/W heads have touched each other
  B. A read head and a write head have touched each other
  C. A R/W head has touched the disk data area
  D. Two adjacent disk platters have touched each other
  E. SAN
  C. A R/W head has touched the disk data area