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E20-260 Sample Questions Answers

Questions 4

Refer to the exhibit.

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

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Questions 5

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

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Questions 6

A host attempted a read from a volume in a VPLEX Metro configuration. The data does not exist in cache at all.

What process does VPLEX use to service the read request?

Options:

A.

VPLEX first searches the local cache for the data, then the cache coherency directory before reading from the array.

B.

VPLEX first searches the cache coherency directory for the data before reading from the array.

C.

VPLEX first searches the local cache for the data before reading from the array.

D.

VPLEX first searches the cache coherency directory for the data, and then searches the local cache before reading from the array.

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Questions 7

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

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Questions 8

Which vplexcli command will ensure that the directors SSD firmware has been upgraded to the correct version after the VPLEX NDU?

Options:

A.

version -a --verbose

B.

director firmware show-banks

C.

version -a

D.

ll /**/internal-disks/*

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Questions 9

Which VPLEX management interface is used for initial configuration?

Options:

A.

eth3

B.

eth2

C.

eth0

D.

eth1

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Questions 10

A customer has a VPLEX Metro installed. They asked you to recommend a method to non-disruptively move Virtual Volumes from a storage array at Cluster 1 to a storage array at Cluster 2. What would you recommend?

Options:

A.

Use the Device Mobility feature of VPLEX.

B.

Use the Extent Mobility feature of VPLEX.

C.

Change the RAID protection to RAID 0

D.

Use array-based features to copy the storage volume, then rediscover the array.

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Questions 11

Refer to the exhibit.

A customer needs to provision storage to a host on Cluster 1, but there is no additional local array capacity to allocate. How could the customer facilitate assigning storage to the Cluster 1 host from an array locally connected to Cluster 2?

Options:

A.

Enable remote access for a Cluster 2 virtual volume.

B.

Add a remote mirror to a Cluster 2 virtual volume.

C.

Create a distributed device from a virtual volume on Cluster 2

D.

Add a virtual volume from Cluster 2 to a distributed consistency group.

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Questions 12

A customer wants to add a mirror to a VPLEX Local RAID-0 device.

Which RAID type is created after the command "device attach-mirror"?

Options:

A.

RAID-0

B.

RAID-S

C.

RAID-1

D.

RAID-C

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Questions 13

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

Options:

A.

1

B.

8

C.

4

D.

2

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Questions 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?

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.

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Questions 15

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

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Questions 16

What is an EMC best practice for fault tolerance when zoning a VPLEX Metro together over Fibre Channel for successful communication between the sites?

Options:

A.

Zone each WAN-COM port to all WAN-COM ports in the other fabric.

B.

Zone all WAN-COM ports to each other in both SAN fabrics within a single zone.

C.

Zone each WAN-COM port to all WAN-COM ports in the other fabric.

Zone one Local-COM port to all WAN-COM ports in the other fabric for VPLEX Witness.

D.

Zone all WAN-COM ports to each other in both SAN fabrics within a single zone.

Zone one Local-COM port to all WAN-COM ports in the other fabric for VPLEX Witness.

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Questions 17

When configuring a VPLEX local cluster, according to EMC best practices, how many metadata volumes are required?

Options:

A.

3

B.

4

C.

2

D.

1

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Questions 18

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

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Questions 19

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?

Options:

A.

Directors are not connected.

B.

health-check --full was not run

C.

Directors are at incompatible code levels

D.

ndu pre-check --force flag was not used

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Questions 20

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

Options:

A.

Storage-View, Virtual-Volume, Device

B.

Storage-View, Virtual-Volume, Storage-Volume

C.

Storage-View, Consistency-Group, Device

D.

Storage-View, Virtual-Volume, Extent

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Questions 21

In a customer's VPLEX Metro environment, a host has been provisioned as a single virtual volume from cluster-1. The customer now needs to convert the local virtual volume to a distributed device.

How can the customer accomplish this?

Options:

A.

Add an unused virtual volume from cluster-2 as a remote mirror to the virtual volume on cluster-1

B.

Add an unused device from cluster-2 as a remote mirror to the virtual volume on cluster-1

C.

Enable remote access to an unused virtual volume from cluster-2 and add it as a remote mirror.

D.

Enable remote access to an unused device from cluster-2 and add it as a remote mirror.

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Questions 22

Which type of statistics is used to track latencies, determine median, mode, percentiles, minimums and maximums?

Options:

A.

Counters

B.

Readings

C.

Buckets

D.

Monitors

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Questions 23

What should be the maximum latency between a VPLEX Management Server and the Cluster Witness?

Options:

A.

1 sec

B.

50 ms

C.

5 ms

D.

1 ms

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Questions 24

A customer has ordered a two-engine VPLEX cluster to be installed in a custom rack. A minimal VNX5300 is already installed in the middle of the rack, occupying nine rack unit spaces.

What is the correct approach to deploy the two-engine VPLEX cluster?

Options:

A.

The engines and SPSs can be placed under the VNX5300 and the other components above the VNX5300 using longer cables.

B.

Use a rack with sufficient space to install all the VPLEX cluster components together according to the predefined EMC layout.

C.

The installation of a two engine cluster is not supported in a customer rack without a formal EMC RPQ.

D.

The EMC account team must order a factory installed VPLEX two engine configuration and ship the custom install VPLEX back to EMC.

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Questions 25

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

Options:

A.

5 ms

B.

2 ms

C.

50 ms

D.

15 ms

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Questions 26

A customer is moving some VMAX devices under a VPLEX Local and is using PowerPath as multipath software.

What is the SCSI product ID assigned to VPLEX volumes?

Options:

A.

Invista

B.

VPLEX

C.

PowerPath

D.

VMAX

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Questions 27

Refer to the exhibit.

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

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Questions 28

In a customer's VPLEX Metro environment, a host has been provisioned as a single virtual volume from cluster-1. The customer now needs to convert the local virtual volume to a distributed device.

How can the customer accomplish this?

Options:

A.

Add an unused device from cluster-2 as a remote mirror to the virtual volume on cluster-1

B.

Add an unused virtual volume from cluster-2 as a remote mirror to the virtual volume on cluster-1

C.

Enable remote access to an unused virtual volume from cluster-2 and add it as a remote mirror.

D.

Enable remote access to an unused device from cluster-2 and add it as a remote mirror.

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Questions 29

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

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Questions 30

Refer to the exhibit.

Which VPlexcli command generated this output?

Options:

A.

vpn status

B.

ndu pre-check

C.

health-check

D.

ifconfig -a eth3

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Questions 31

Refer to the exhibit.

You are planning to perform data mobility between VPLEX Clusters using the GUI. What mobility job options do you have?

Options:

A.

create, stop, activate, monitor, pause, throttle and terminate

B.

create, activate, fracture, resync, monitor, pause, and commit

C.

create, cancel, suspend, monitor, pause, throttle, and terminate

D.

create, remove, cancel, monitor, pause, throttle, and commit

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Exam Code: E20-260
Exam Name: VPLEX Specialist Exam for Implementation Engineers
Last Update: May 1, 2024
Questions: 210
$64  $159.99
$48  $119.99
$40  $99.99
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