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E20-562 Real Exam Questions

VPLEX Specialist for Storage Administrators

66 questions available · Page 1 of 7

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Question 1 Single choice

What is a consideration for using a VPLEX logging volume?

  1. A

    Must be created on each VPLEX cluster before creating a distributed device

  2. B

    Automatically provisioned at each VPLEX cluster when the distributed device is created

  3. C

    A distributed device must be created before a logging volume can be created

  4. D

    VIAS can be used to create a logging volume at each cluster

Show answer and explanation

Correct answer: A

Explanation

References:
http://www.vclouds.nl/wp-content/uploads/2012/04/h7139-implementation-planning-vplex-tn.pdf

Question 2 Single choice

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

Show answer and explanation

Correct answer: A

Question 3 Single choice

Which protocol does the service laptop use to communicate with and maintain an EMC VPLEX environment?

  1. A

    SSH

  2. B

    SNMP

  3. C

    Telnet

  4. D

    UDP

Show answer and explanation

Correct answer: D

Question 4 Single choice

What condition would prevent volume expansion?

  1. A

    Migration occurring on the volume

  2. B

    Volume not belonging to a consistency group

  3. C

    Metadata volume being backed up

  4. D

    Logging volume in re-synchronization state

Show answer and explanation

Correct answer: A

Explanation

References:
https://logicalblock.wordpress.com/2014/01/28/how-to-expanding-vplex-virtual-volumes/

Question 5 Single choice

At which stage of configuring a virtual volume on VPLEX is the RAID level defined?

  1. A

    Claimed volume

  2. B

    Device

  3. C

    Storage volume

  4. D

    Extent

Show answer and explanation

Correct answer: C

Explanation

References:
https://www.emc.com/collateral/white-paper/h13049-provisioning-emc-vplex-integration.pdf
(page 26)

Question 6 Single choice

Using the Storage Volume expansion method for virtual volumes built on RAID-1 or distributed RAID-1 devices, what is the maximum number of initialization processes that can run concurrently, per cluster?

  1. A

    100

  2. B

    250

  3. C

    500

  4. D

    1000

Show answer and explanation

Correct answer: D

Explanation

References:
https://www.gotomojo.com/wp-content/uploads/2019/07/Dell-VPLEX-Admin-Guide.pdf
(page 106, limitations with storage-volume expansion)

Question 7 Single choice

Which protocol is presented by "B" in the exhibit?

  1. A

    FC

  2. B

    iSCSI

  3. C

    FCoE

  4. D

    IPFC

Show answer and explanation

Correct answer: A

Question 8 Single choice

How can a VPLEX storage administrator manage array-based attributes?

  1. A

    Device tiers

  2. B

    Storage tiers

  3. C

    Volume tiers

  4. D

    Extent tiers

Show answer and explanation

Correct answer: B

Question 9 Single choice

Refer to the exhibit.

Which displayed storage volume is available to be used for the creation of an extent?

  1. A

    1

  2. B

    2

  3. C

    3

  4. D

    4

Show answer and explanation

Correct answer: A

Question 10 Single choice

What is the relationship between a storage volume and an extent?

  1. A

    A storage volume can be split into multiple extents

  2. B

    An extent must map to an entire storage volume

  3. C

    A storage volume can be created out of multiple extents

  4. D

    An extent can span multiple storage volumes

Show answer and explanation

Correct answer: C

Explanation

References:
http://blog.scottlowe.org/2010/12/13/a-quick-review-of-vplex-storage-objects/