VPLEX Specialist Exam for Implementation Engineers (E20-260) Free Practice Test

Question 1

What three elements are part of the VPLEX Storage View?

A. VPLEX BE Port Initiator Port Virtual Volume

B. VPLEX FE Port Initiator Port Virtual Volume

C. VPLEX FE Port Top-Level Device Host IP address

D. VPLEX BE Port VPLEX FE Port Virtual Volume

Correct Answer: B

Question 2

You are preparing a site for a large Metro VPLEX cluster. The storage administrator wants to prepare the storage network configuration and needs to ensure easy troubleshooting of storage path faults.
How many WAN-COM zones will need to be created?

A. 8

B. 16

C. 32

D. 24

Correct Answer: C

Question 3

What are the three components that a drill-down command can be run against to provide a more detailed analysis?

A. Storage-View, Virtual-Volume, Device

B. Storage-View, Consistency-Group, Device

C. Storage-View, Virtual-Volume, Extent

D. Storage-View, Virtual-Volume, Storage-Volume

Correct Answer: A

Question 4

What VPLEX user account is required to manage user security?

A. user

B. root

C. service

D. admin

Correct Answer: D

Question 5

Do virtual volumes need to be taken off-line prior to upgrading VPLEX software, and why or whynot?

A. Yes, because the host-based multi-pathing software provides direct access during the upgrade

B. No, because VPLEX software can be upgraded non-disruptively

C. Yes, to preserve data integrity

D. No, because the upgrading can be undone

Correct Answer: B

Question 6

A customer has ordered a new VPLEX, and you are on site doing the initial installation. When creating metadata volumes for the VPLEX Local configuration, the customer asks you how much total storage is needed for the VPLEX metadata. According to EMC best practices, what is the total minimum storage needed for this configuration?

A. 312 GB

B. 156 GB

C. 234 GB

D. 10 GB

Correct Answer: A

Question 7

What is the maximum cache of a single engine in a medium VPLEX VS2 cluster?

A. 36 GB

B. 144 GB

C. 72 GB

D. 78 GB

Correct Answer: C

Question 8

What is the total number of engines for a small VPLEX Metro configuration?

A. 4

B. 8

C. 1

D. 2

Correct Answer: D

Question 9

You have attempted to upgrade a VPLEX system to the latest Geosynchrony code. During the upgrade, an error appeared and caused the upgrade to fail.
Which file should you review to gather more information about the failure?

A. session.log

B. ndu-pre-check-stderr.txt

C. VPlexconfiguration-session.txt

D. firmware.log_<date>

Correct Answer: D

Question 10

You are preparing a site for a large Metro VPLEX cluster. The storage administrator wants to prepare the storage network configuration and needs to ensure easy troubleshooting of storage path faults.
How many WAN-COM zones per fabric will need to be created?

A. 8

B. 16

C. 32

D. 12

Correct Answer: B

Question 11

A customer has a VPLEX Metro configuration across two data centers 200 km apart. During an overnight backup, the WAN-COM link between the two data centers fails.
Which volume allows for future incremental re-synchronization with the remote mirror once the link is restored?

A. Metadata Volume

B. Logging Volume

C. Virtual Volume

D. Storage Volume

Correct Answer: B

Question 12

A customer has a VPLEX Metro/GEO environment and is requesting that the VPLEX Witness be installed.
The requirements for the Witness are:
-One vCPU -512MB ram -2.5GB storage space
What platform type is supported?

A. 64bit MS Hyper-V 2012

B. 32/64bit ESXi 5.0

C. 64bit ESX4.0 and above

D. VMware Workstation 9.0 and above

Correct Answer: C

Question 13

A logging volume needs to be migrated to a new array.
Which command must be used to associate the distributed devices to the new logging volume?

A. logging activate

B. dm migration

C. ds dd set-log

D. logging volume move

Correct Answer: C

Question 14

You created a synchronous consistency group, which contains two distributed volumes configured with the rule "set cluster-1-detaches".
What is the expected behavior of the virtual volumes in the event of a WAN-COM failure?

A. I/O will continue at both clusters.

B. I/O will be suspended at both clusters until the WAN-COM is repaired.

C. cluster-1 is declared the winner after 5 seconds and I/O will continue at that cluster.

D. cluster-2 is declared the winner after 5 seconds and I/O will continue at that cluster.

Correct Answer: D

Question 15

Refer to the exhibit.

NDU pre-check failed because minimal topology is in use. Which parameter can be added to the ndu start command that will allow the NDU to proceed without error in this situation?

A. Both the --skip-sysconfig-check and --force options

B. Both the --skip-sysconfig-check and --skip-view-config-check options

C. Only the --skip-view-config-check option

D. Only the --force option

Correct Answer: B

Question 16

Refer to the exhibit.

You are preparing to perform an upgrade on an unconfigured VPLEX Metro. When you run the ndu pre-check command, it indicates that it has failed and there are no first upgraders. In your troubleshooting, you run the version -a command.
Based on the output, what is the reason for the failure?

A. health-check --full was not run

B. Directors are not connected.

C. ndu pre-check --force flag was not used

D. Directors are at incompatible code levels

Correct Answer: B

Question 17

What is the EMC best practice for the optimum number of active back-end storage paths per director for each LUN presented to VPLEX?

A. 4 paths

B. 8 paths

C. 2 paths

D. 16 paths

Correct Answer: A

Question 18

What is EMC's best practice for fault tolerance when zoning a VPLEX Metro together over fibre channel for successful communication between the sites?

A. Ensure that all fibre channel Local-COM ports are zoned to the WAN-COM ports in both SAN fabrics (One-to-Many Zoning).

B. Ensure that all fibre channel WAN-COM ports are zoned to each other in both SAN fabrics (Many-to-Many Zoning).

C. Ensure that all fibre channel Local-COM ports are zoned to each other in both SAN fabrics (Many-to-Many Zoning).

D. Ensure that all fibre channel WAN-COM ports are zoned to each other in both SAN fabrics (One-to-Many Zoning).

Correct Answer: D

Question 19

You have a perpetual performance monitor running on director 1-1-A The data being monitored is growing at a rate of 2 MB per minute. At the current data rate, how far back in time will this monitor be able to reach?

A. 50 minutes

B. 5 minutes

C. 50 hours

D. 5 hours

Correct Answer: A

Question 20

What option must be set for a consistency group to continue synchronization without manual intervention, once connectivity is restored?

A. rule-set-name = cluster-1-detaches

B. rebuild-type = full

C. auto-resume-at-loser = true

D. rebuild-allowed = true

Correct Answer: C

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EMC VPLEX Specialist Exam for Implementation Engineers (E20-260) Free Practice Test