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

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Total 210 questions
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VPLEX Specialist Exam for Implementation Engineers Questions and Answers

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Question 1

You have added a new storage array into VPLEX, but it does not see it. Which VPLEX command will display the new storage array?

Options:

A.

vplexcli./clusters/cluster-/storage-elements/storage-arrays/array re-discover

B.

vplexcli:/array claim -s

C.

vplexcli:/clusters/cluster-//storage-elements/storage-arrays>array used-by-array

D.

vplexcli:/connectivity validate-be

Question 2

After registering Cluster-2 with ESRS during a VPLEX Metro cluster build, what is the next step to perform before the cluster is successfully built?

Options:

A.

Complete EZ-Setup Wizard on Cluster-1

B.

Complete EZ-Setup Wizard on Cluster-2

C.

Configure WAN connections on Cluster-1

D.

Configure WAN connections on Cluster-2

Question 3

A customer wants to collect performance data for specific virtual-volumes and has created the performance monitor.

What step needs to be performed to enable data capture?

Options:

A.

The customer needs to utilize the "-capture" flag when creating the monitor

B.

Virtual-volumes cannot have any performance data collected against them

C.

The customer needs to create an associated sink for data collection

D.

The customer needs to enable performance collection through the VPLEX GUI

Question 4

Refer to the exhibit.

On which cluster is the GUI connected?

Options:

A.

Cluster-2

B.

Cluster-1

C.

Cluster IP alias

D.

VPLEXCLI must be used to determine which cluster is supporting the GUI

Question 5

Which command can provide information on connections between storage volumes and back-end ports?

Options:

A.

Connectivity director

B.

Connectivity show

C.

Connectivity validate-be

D.

Export storage-view summary

Question 6

In which directory is a session log file created whenever the Management Console is launched?

Options:

A.

/var/log/VPlex/cli/

B.

/var/log/sessions

C.

/diag

D.

/tmp/log/sessions

Question 7

In a VPLEX Metro/Geo, which vplexcli command can help to troubleshoot directors latency and routing issues to other Cluster directors?

Options:

A.

director fc-port-stats

B.

connectivity director

C.

director tracepath

D.

VPlexadmin show

Question 8

Refer to the exhibit.

On which cluster is the GUI connected?

Options:

A.

Cluster-1

B.

Cluster-2

C.

Cluster IP alias

D.

VPLEXCLI must be used to determine which cluster is supporting the GUI

Question 9

Refer to the exhibit.

The customer deleted ext_2 on a 20 GB LUN in order to make an extent of 10 GB. Why is the customer unable to create a 10 GB extent?

Options:

A.

Chunks of the storage need to be contiguous.

B.

Storage array must be re-discovered.

C.

ext_2 cannot be deleted.

D.

The defrag property is set to false.

Question 10

Refer to the exhibit.

For what is the module labeled "E" used?

Options:

A.

Director A Front-end Connectivity

B.

Director A Back-end Connectivity

C.

Director A WAN COM Connectivity

D.

Director A Local Com Connectivity

Question 11

An EMC customer wants to add a mirror to a VPLEX Local RAID 0 device. Which RAID type is created after the device attach-mirror command is issued?

Options:

A.

RAID 1

B.

RAID 0

C.

RAID S

D.

RAID C

Question 12

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 13

What aspect of VPLEX assigns and remembers chunk ownership?

Options:

A.

Meta-Directory

B.

Repository

C.

Share Groups

D.

Consistency Groups

Question 14

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 15

Refer to the Exhibit.

Based on this diagram of a single VPLEX engine, which protocol is represented by "A"?

Options:

A.

FC

B.

IP

C.

ISCSI

D.

FCIP

Question 16

Refer to the exhibit.

You have created a Distributed Device in a VPLEX Metro. You want to confirm the volumes before performing a mobility job within the cluster. You will be moving the device to cluster 1.

Which object will be the source for this operation?

Options:

A.

extent_Symm0841_03A7_1

B.

DD_8_32012Nov26_183659

C.

Symm0841_03A7

D.

DD_7_3

Question 17

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 18

Refer to the exhibit.

The customer has not followed EMC best practices when cabling their VS2 VPLEX engine. What action would you recommend to fix this issue?

Options:

A.

Swap ports 00 with ports 01 of both director A and director B.

B.

Swap port 02 with port 03 of both director A and director B.

C.

Add two more additional fabrics and place each director in its own fabric.

D.

Separate all FE and BE ports into their own fabric.

Question 19

Which unique logical identifier is used when determining the relationship between a virtual volume and the back-end storage array?

Options:

A.

VPD ID

B.

WWPN

C.

LUN ID

D.

FCID

Question 20

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?

Options:

A.

Only the --force option

B.

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

C.

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

D.

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

Question 21

How can you throttle the migration rate for VPLEX?

Options:

A.

By configuring the maximum copy speed

B.

By setting the copy policy

C.

This is done automatically without any user action

D.

By dynamically changing the I/O write size for copying

Question 22

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

Options:

A.

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

B.

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

Question 23

What is the maximum supported latency for a VPLEX Metro implementation?

Options:

A.

5 ms

B.

2 ms

C.

50 ms

D.

15 ms

Question 24

Refer to the exhibit.

A customer is moving some VMAX devices under a VPLEX Local and is using PowerPath as multipath software. What is the preferred PowerPath load balancing policy assigned to VPLEX volumes?

Options:

A.

Fixed

B.

Adaptive

C.

Round Robin

D.

SymOpt

Question 25

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-2 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-1 is declared the winner after 5 seconds and I/O will continue at that cluster.

Question 26

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

Options:

A.

4 paths

B.

2 paths

C.

8 paths

D.

16 paths

Question 27

You need to claim storage that is presented to VPLEX from a VNX. What is required in order to create the mapping file needed by the VPLEX Claim Storage Wizard?

Options:

A.

A host with solutions enabler installed and zoned to SPA and SPB

B.

The user name, password and management address of the VNX

C.

A host with WinSCP installed, with an IP connection to the VPLEX Management Server

D.

The username and password of the VPLEX Management Server

Question 28

A dual fan failure occurs on a single VPLEX engine.

What will be the result?

Options:

A.

The engine will shut down immediately.

B.

Director B only will shut down.

C.

Director A only will shut down.

D.

The engine will shut down after three minutes.

Question 29

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

Options:

A.

Back-end array discovery

B.

Host initiator discovery

C.

Second cluster initial setup

D.

Witness configuration

Question 30

What are the four basic dm migration commands for moving extents or devices?

Options:

A.

Start, commit, clean, and remove

B.

Create, clean, commit, and remove

C.

Start, commit, clean, and terminate

D.

Create, commit, clean, and terminate

Question 31

Refer to the exhibit.

After a power disruption of 20 seconds in a VPLEX environment, the output of the "vault status" command shows no vaulting processes.

Why did this occur?

Options:

A.

The cache vaulting did not exceed the timer period.

B.

It is the expected output, because the command "vault status" doesn't show information on cache process at all.

C.

Cache vaulting process has already completed.

D.

Cache vaulting process is still running in background and it is not shown until completed.

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