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

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Total 210 questions

VPLEX Specialist Exam for Implementation Engineers Questions and Answers

Question 1

What components are required to create a storage view?

Options:

A.

One or more BE ports; One or more devices; Metadata volume and Logging Volumes

B.

One or more Host Initiators; One or more Virtual Volumes; One or more FE ports

C.

One or more FE ports; One or more BE ports; One or more Virtual Volumes

D.

One or more Host Initiators; One or more extents; One or more BE ports

Question 2

Refer to the exhibit.

Question # 2

A customer is requesting a performance analysis for their distributed volumes in a Metro configuration to ensure there are no issues with a recent implementation.

What additional files should be collected?

Options:

A.

Perpetual log files from Cluster-2

B.

firmware.log from Cluster-1

C.

Health-Check output from Cluster-2

D.

VPLEX Performance GUI export from both clusters

Question 3

Which command allows you to navigate vplexcli history by string?

Options:

A.

CTRL + R string

B.

history find string

C.

history | grep string

D.

UP arrow key

Question 4

What can you use to generate a list of VPLEX fabric initiator and target identifiers?

Options:

A.

Atlas WWN Tool

B.

Solve Desktop

C.

Support.EMC.com

D.

Unisphere for VPLEX

Question 5

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?

Options:

A.

16

B.

12

C.

8

D.

32

Question 6

What are the recommended protection and disk type when selecting a VPLEX Logging Volume?

Options:

A.

RAID6(6+2) and FC Disks

B.

RAID6(14+2) and SATA Disks

C.

RAID1 and SSD Disks

D.

RAID5 and FC Disks

Question 7

What is the total number of available engines in the smallest VPLEX Metro configuration?

Options:

A.

2

B.

1

C.

8

D.

4

Question 8

You are zoning a dual-engine Local VPLEX cluster to a Symmetrix array to see LUNs 0010 and 0020 for metadata backups.

How many directors in the cluster must be zoned and masked to these LUNs?

Options:

A.

All of the directors

B.

Any two directors

C.

One from each engine

D.

Only one director

Question 9

A customer has a quad-engine VPLEX Metro configuration and has stated they want to review their performance metrics from the past 4 hrs on the entire cluster. How many performing log files will they need to pull from the management server in order to analyze all of their components?

Options:

A.

16 performance log files

B.

8 performance log files

C.

2 performance log files

D.

None, all metrics are displayed in the Unisphere GUI

Question 10

Refer to the exhibit.

Question # 10

Which two metavolume candidates should be used to complete the displayed command?

Options:

A.

1 and 2

B.

5 and 6

C.

1 and 3

D.

3 and 4

Question 11

During the installation of a VPLEX Local, the command ‘configuration system-setup’ is issued. What is accomplished by this command?

Options:

A.

Launches EZ-setup Wizard

B.

Configures EMC system reports

C.

Exposes back-end storage to cluster

D.

Creates a logging volume

Question 12

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?

Options:

A.

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

B.

I/O will continue at both clusters.

C.

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

D.

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

Question 13

A VPLEX administrator claims a 100GB Storage Volume that is thin provisioned on the storage array and has 25GB physically allocated and creates a 1:1 encapsulated virtual volume. After a local data mobility job for that Virtual Volume, the storage array administrator notices that the allocated capacity has increased to 100GB. Why did this happen?

Options:

A.

The destination Storage Volume was not claimed with the thin-rebuild parameter in VPLEX.

B.

VPLEX does not support thin devices.

C.

Neither the source nor the destination Storage Volume were claimed with the thin-rebuild parameter in VPLEX.

D.

The source Storage Volume was not claimed with the thin-rebuild parameter in VPLEX.

Question 14

What is the recommended protection to be used when creating a VPLEX Logging Volume?

Options:

A.

RAID-1

B.

Raid-C

C.

RAID-0

D.

Mapping

Question 15

A customer wants to refresh the underlying array that comprises one-half of their local RAID-1 mirrors. Their intent is to remove the discarded mirror from VPLEX control, but as a rollback procedure, they want to ensure the detached device is a consistent copy of the original data. What is the proper way to perform this operation, meeting the customer's requirements?

Options:

A.

Exclude the "--discard" option in VPlexcli when detaching the mirror

B.

Include the "--discard" option in VPlexcli when detaching the mirror

C.

Utilize the GUI to detach the mirror consistently

D.

Utilize the GUI to teardown the virtual volume

Question 16

Where is the wwn-seed physically located on VS2 engines?

Options:

A.

On the back of the engine on the bottom of the chassis

B.

On the front of the management server

C.

On the front of the director

D.

On the front of the director bezel cover

Question 17

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

Options:

A.

Yes, to preserve data integrity

B.

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

C.

No, because VPLEX software can be upgraded non-disruptively

D.

No, because the upgrading can be undone

Question 18

Which type of volume has complete synchronized copies of data (mirrors) in more than one cluster?

Options:

A.

Distributed Device

B.

Extent

C.

Device

D.

Virtual Volume

Question 19

When should front-end ports be enabled during a VPLEX installation?

Options:

A.

After creating the meta-volumes and backup

B.

Before creating the meta-volumes and backup

C.

Before launching the VPLEX EZ-Setup Wizard

D.

After exposing storage to the hosts

Question 20

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

Options:

A.

4 paths

B.

2 paths

C.

8 paths

D.

16 paths

Question 21

In which asynchronous Consistency Group Operation stage are the delta sets written to the storage arrays?

Options:

A.

Commit

B.

Closed

C.

Exchange

D.

Open

Question 22

Refer to the exhibit.

Question # 22

You have created a Distributed Device in a VPLEX Metro. You want to confirm you have chosen the correct volumes before performing a device mobility job within cluster-2. Which object will be the source for this operation?

Options:

A.

DD_8_32012Nov26_183659

B.

extent_Symm0841_03A7_1

C.

Symm0841_03A7

D.

DD_7_3

Question 23

Which command would you execute to perform basic system checks to ensure that the VPLEX cluster is working properly?

Options:

A.

health-check

B.

cluster config-dump

C.

validate-system-configuration

D.

cluster summary

Question 24

A customer has asked you to inspect their SAN connectivity before upgrading their Local configuration to a Metro. What will the output of the connectivity validate-be command provide for an analysis of this environment?

Options:

A.

The number of supported storage-volumes visible to each director

B.

The number of supported active paths per storage-volume that have been exceeded

C.

The number of supported storage-arrays connected to the cluster

D.

The number of supported logical-units per array connected to the cluster

Question 25

Refer to the exhibit.

Question # 25

During a short power disruption to cluster 2, director-2-1-A failed. Power was restored after 5 minutes. In examining the output of the vault status command, you note that cluster-2's status reads "Cluster is not vaulting/unvaulting".

Why did this message appear?

Options:

A.

The power disruption affected a single director only.

B.

There was no power disruption at cluster-1

C.

The power disruption did not affect all "A" directors.

D.

The vaulting process runs on cluster-1

Question 26

What function does the SNMP agent on the Management Server provide?

Options:

A.

Cluster Management

B.

Director Management

C.

Cluster Statistics

D.

User Management

Question 27

Click on the calculator icon in the upper left corner of the screen. 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?

Options:

A.

312 GB

B.

78 GB

C.

156 GB

D.

234 GB

Question 28

A VPlex administrator claims a 100GB Storage Volume that is thin provisioned on the storage array and has 25GB physically allocated and creates a 1:1 encapsulated virtual volume. After a local data mobility job for that Virtual Volume, the storage array administrator notices that the allocated capacity has increased to 100GB.

Why did this happen?

Options:

A.

The destination Storage Volume was not claimed with the thin-rebuild parameter in VPLEX.

B.

VPLEX does not support thin devices.

C.

Neither the source nor the destination Storage Volume were claimed with the thin-rebuild parameter in VPLEX.

D.

The source Storage Volume was not claimed with the thin-rebuild parameter in VPLEX.

Question 29

Refer to the exhibit.

Question # 29

What does this 4-step VPLEX cache operation represent?

Options:

A.

Global Read Miss

B.

Local Read Hit

C.

Global Read Hit

D.

Local Read Miss

Question 30

What is a key advantage of integrating VPLEX into a VMware environment?

Options:

A.

If VM data is shared across arrays or across data centers it becomes problematic, VPLEX solves these problems.

B.

Without VPLEX, Motion can only migrate to other disks within the same array.

C.

VMware HA can only replicate across data centers to same-type arrays. VPLEX allows data stores to live on any array-type.

D.

Without VPLEX, all of an ESX server's data must reside on the same array.

Question 31

What device types can be created in a VPLEX environment?

Options:

A.

RAID-5, RAID-6, RAID-C

B.

RAID-0, RAID-1, RAID-C

C.

RAID-3, RAID6 (6+2), RAID6 (14+2)

D.

RAID5 (3+1), RAID5 (7+1), RAID-S

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Total 210 questions