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E20-807 Real Exam Questions

Expert - VMAX All Flash and VMAX3

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Question 1 Single choice

A VMAX3 array needs additional capacity added. The array is providing acceptable performance and the administrator wants to ensure performance is maintained as new drives are added.

A VMAX3 array needs additional capacity added to maintain performance?

  1. A

    Add storage to all tiers maintaining the existing ratio

  2. B

    Add storage to a new internal SRP

  3. C

    Add storage to the most over utilized tier

  4. D

    Add storage to a new external SRP

Show answer and explanation

Correct answer: A

Question 2 Single choice

A server is hosting an online application and is experiencing performance issues.

Which component of the architectural layer has the lowest probability of impacting performance?

  1. A

    Operating System

  2. B

    Server

  3. C

    Application

  4. D

    Disk

Show answer and explanation

Correct answer: A

Question 3 Single choice

Refer to the Exhibit.

Migration of data from a VMAX to a VMAX All Flash array is planned. the target array has been installed and RDF connectivity between the two arrays has been established. In addition, the application host is accessing data on the source array.

What is the result when the Non-Disruptive Migration Setup operation is performed?

  1. A

    Creates RDF pairs and places them in pass-through mode

  2. B

    Replicates the storage configuration from the source to the target array

  3. C

    Creates an empty Dynamic RDF group on the source and target arrays

  4. D

    Zones the application host initiators to the target array

Show answer and explanation

Correct answer: C

Question 4 Single choice

Refer to the Exhibit.

Which port assignments for external array connectivity satisfy high availability and best practices for a dual engine VMAX3 configuration with FAST.X?

  1. A

    Director 1 port 4, Director 1 port 5
    Director 4 port 4, Director 4 port 5

  2. B

    Director 1 port 4, Director 1 port 9
    Director 1 port 24, Director 1 port 31

  3. C

    Director 1 port 4, Director 1 port 9
    Director 2 port 4, Director 2 port 9

  4. D

    Director 1 port 4, Director 2 port 4
    Director 1 port 8, Director 4 port 24

Show answer and explanation

Correct answer: C

Question 5 Single choice

A VDI deployment is planned for an environment that consists of VMAX3 and XtremIO. The data will have a high degree of deduplication and will require QoS and VVOL support.

How can the existing infrastructure be leverage while minimizing increased storage capacity?

  1. A

    Use XtremIO for the new deployment

  2. B

    Use FAST.X with XtremIO for the new deployment

  3. C

    Add full capacity required for VMAX3

  4. D

    Add half the capacity required for the VMAX and use compression

Show answer and explanation

Correct answer: A

Question 6 Single choice

If an XtremIO external tier is placed in its own Storage Resource Pool, which SLO is associated with the external tier?

  1. A

    Platinum

  2. B

    Silver

  3. C

    Gold

  4. D

    Optimized

Show answer and explanation

Correct answer: D

Question 7 Single choice

What is a Dell EMC recommended best practice when connecting CloudArray to a VMAX3?

  1. A

    Hosts should average at least 2,500 IOPS

  2. B

    Internal SRP should be used

  3. C

    Host I/O limits should be used

  4. D

    Host I/O limits should not be used

Show answer and explanation

Correct answer: B

Question 8 Single choice

Refer to the Exhibit.

Cascaded SRDF has been deployed on VMAX3 has been deployed on VMAX3 arrays. The SRDF mode has been set to Asynchronous between Sites A and B.

Which SRDF mode is permitted between Sites B and C?

  1. A

    Adaptive Copy Write Pending

  2. B

    Synchronous

  3. C

    Adaptive Copy Disk

  4. D

    Asynchronous

Show answer and explanation

Correct answer: C

Question 9 Single choice

Which RDF mode is active during the Non-Disruptive Migration Cutover Ready state?

  1. A

    Asynchronous

  2. B

    Pass-through

  3. C

    Adaptive Copy

  4. D

    Synchronous

Show answer and explanation

Correct answer: B

Explanation

References:
https://www.emc.com/collateral/technical-documentation/h15695-vmax-ndm-for-sap-sg.pdf
(Page 9)

Question 10 Single choice

What is in accurate statement about Unisphere for VMAX and Solutions Enabler permission management?

  1. A

    Authorization checking is disabled by default for Unisphere and Solutions Enabler and must be enabled before configuring permissions

  2. B

    Solutions Enabler can assign up to four roles per user and Unisphere can only assign up to two roles per user

  3. C

    Unisphere and Solutions Enabler permission information is maintained in separate symauth databases

  4. D

    Unisphere has a more explicit authentication mechanism for users while Solutions Enabler uses the
    operating system user credentials

Show answer and explanation

Correct answer: C