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Dell E20-562 Exam Practice Questions (P. 5)

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Question #21
Why is it EMC best practice that each back-end LUN has a connection to all the A-directors and to all the B-directors in the VPLEX cluster?
  1. A
    Prevents data unavailability during a non-disruptive upgrade
  2. B
    Reduces the number of ITLs
  3. C
    Ensures writes are mirrored on director local cache
  4. D
    Optimizes global read cache

Correct Answer:
A

Question #22
Which VPLEX component can determine the difference between a partition and a site failure of a VPLEX Metro configuration?
  1. A
    VPLEX Witness
  2. B
    Management Server
  3. C
    Distributed device
  4. D
    Consistency group

Correct Answer:
A
Reference:https://www.emc.com/collateral/hardware/white-papers/h8232-vplex-architecture-wp.pdf(page 18)

Question #23
What is the purpose of issuing the batch-migrate check-plan command?
  1. A
    Determines if there is currently enough back-end bandwidth
  2. B
    Determines if the front-end IO rate is below the predetermined threshold
  3. C
    Verifies that the target devices have no virtual volumes configured
  4. D
    Verifies that the source devices are not in a storage view

Correct Answer:
C

Question #24
What are characteristics of a storage view?
  1. A
    An initiator can be in multiple storage viewsVPLEX FE port can only be in one storage viewEach initiator and FE port pair can only be in one storage view
  2. B
    An initiator can only be in one storage viewVPLEX FE port can be in multiple storage viewsEach initiator and FE port pair can be in different storage views
  3. C
    An initiator can only be in multiple storage viewVPLEX FE port can be in multiple storage viewsEach initiator and FE port pair must be in different storage views
  4. D
    An initiator can be in multiple storage viewsVPLEX FE port can be in multiple storage viewsEach initiator and FE port pair can only be in one storage view

Correct Answer:
C

Question #25
What is the maximum number of synchronous consistency groups supported by VPLEX?
  1. A
    256
  2. B
    512
  3. C
    1024
  4. D
    2048

Correct Answer:
D

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