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E20-260 VPLEX Specialist Exam for Implementation Engineers Questions and Answers

Questions 4

Which VPLEX management NIC Interface must be connected to customer IP public LAN?

Options:

A.

eth3

B.

eth2

C.

eth1

D.

eth0

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Questions 5

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 6

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

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Questions 7

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).

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Questions 8

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

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Questions 9

Refer to the exhibit.

E20-260 Question 9

After the "attach-mirror" command is successfully executed on device "device_VNX0506_CSE__6_1", the command "rebuild-status" shows an ongoing rebuild process on the same device.

What is a possible cause?

Options:

A.

It is a normal behavior. when attaching a mirror, a rebuild process starts.

B.

The device "device_VNX0506_CSE__6_1" has an ongoing rebuild process for a previous failure.

C.

The rebuild process is related to a director failure.

D.

The device mirror will start only after the rebuild process is completed.

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Questions 10

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.

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Questions 11

Refer to the exhibit.

E20-260 Question 11

You have created a Distributed Device in a VPLEX Metro system. Which VPLEX Object can be placed in a Storage View for Cluster-1?

Options:

A.

DD_8_3_vol

B.

DD_8_32012Nov26_183659

C.

Symm0841_03A7

D.

extent_Symm0841_03A7_1

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Questions 12

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

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Questions 13

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

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Questions 14

Refer to the exhibit.

E20-260 Question 14

Which VPLEX configuration is shown?

Options:

A.

VPLEX Metro/GEO dual engine

B.

VPLEX Local quad engine

C.

VPLEX Metro/GEO quad engine

D.

VPLEX Local dual engine

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Questions 15

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

Options:

A.

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

B.

/array claim -s

C.

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

D.

connectivity validate-be

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Questions 16

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?

Options:

A.

24

B.

16

C.

8

D.

32

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Questions 17

Refer to the exhibit.

E20-260 Question 17

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

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Questions 18

A customer has purchased a dual engine VPLEX Metro cluster. During installation, there are not enough free SAN ports to connect all WAN-COM ports to the SAN. What is the recommended approach?

Options:

A.

The customer must provide additional SAN ports or acquire additional SAN ports to connect all WAN-COM ports of both VPLEX engines to the SAN.

B.

The customer must connect the WAN-COM ports of the first engine only and disable the second engine from the VPLEX CLI.

C.

It is sufficient to connect the WAN-COM ports of either engine 1 or 2 because redundancy is provided by leveraging two separate SAN fabrics.

D.

The customer must connect the WAN-COM ports of the first engine only and disable the second engine from the Unisphere for VPLEX GUI.

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Questions 19

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

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Questions 20

What is a group of VPLEX directors that participate in the cache coherence protocol for a virtual volume?

Options:

A.

Share Group

B.

Consistency Group

C.

Storage View

D.

Administrative Domain

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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 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 22

You are using VPLEX Unisphere to perform management functions in your environment. You are tasked with creating several volume migrations to a new storage array.

What tab should you use to perform this migration?

Options:

A.

Provision Storage

B.

Mobility Central

C.

System Status

D.

Performance Dashboard

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Questions 23

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

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Questions 24

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

Options:

A.

72 GB

B.

36 GB

C.

144 GB

D.

78 GB

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Questions 25

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

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Questions 26

In a VPLEX Metro with Witness, which command returns the remote VPLEX management IP address and the witness public IP address?

Options:

A.

shell command sudo /usr/sbin/ipsec status

B.

vplexcli command cluster status

C.

shell command /sbin/ifconfig

D.

vplexcli command VPlexadmin show

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Questions 27

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 28

What is the recommendation when executing collect-diagnostics command on a VPLEX Metro/GEO?

Options:

A.

Do not run simultaneously on both Management servers

B.

Always use the --local-only option

C.

Always use the --noextended option

D.

Always use the --minimum option

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Questions 29

Refer to the exhibit.

E20-260 Question 29

Which two modules are used for WAN-COM connectivity?

Options:

A.

C and G

B.

C and D

C.

D and E

D.

G and H

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Questions 30

A customer is verifying the host environment before scheduling a VPLEX NDU. According to EMC best practices, which PowerPath load-balancing policy is applied by default to all platforms?

Options:

A.

Adaptive

B.

RoundRobin

C.

LeastIO

D.

StreamIO

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Questions 31

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.

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Questions 32

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

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Questions 33

Refer to the exhibit.

E20-260 Question 33

The customer has not followed EMC best practices when cabling their VS2 VPLEX engine. You are asked how to re-cable the engine to adhere to best practices. What is your response?

Options:

A.

Swap port 00 with port 01 of module A0-FE and B0-FE.

B.

Swap port 00 with port 01 of module A1-BE and B1-BE.

C.

Swap port 02 with port 03 of module A0-FE and B0-FE.

D.

Swap port 02 with port 03 of module A1-BE and B1-BE.

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Questions 34

A customer is performing maintenance on their network that might affect their VPLEX Witness VM.

What can be done to ensure there are no adverse effects due to a Witness outage?

Options:

A.

Disable the cluster's management server ipsec.

B.

Disable the VPLEX Witness.

C.

Shut down the VPLEX Witness VM.

D.

Shut down the cluster's management server.

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Questions 35

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- < Cluster ID > /storage-elements/storage-arrays/array re-discover

B.

vplexcli:/array claim -s

C.

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

D.

vplexcli:/connectivity validate-be

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Questions 36

Refer to the exhibit.

E20-260 Question 36

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

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Questions 37

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 38

Refer to the exhibit.

E20-260 Question 38

What is the function of the two highlighted VPLEX VS2 modules?

Options:

A.

Back-end connectivity

B.

Front-end connectivity

C.

WAN-COM connectivity

D.

Local-COM connectivity

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Questions 39

When inspecting a VS1 director's status LEDs, you see that a status LED is blue. What does this indicate?

Options:

A.

The VPLEX Standby Power Supply battery is low.

B.

GeoSynchrony code cannot be downloaded from the Management Server

C.

The director is downloading GeoSynchrony code from the Management Server.

D.

The VPLEX cannot connect with the other cluster

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Questions 40

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?

Options:

A.

firmware.log_ < date >

B.

session.log

C.

VPlexconfiguration-session.txt

D.

ndu-pre-check-stderr.txt

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Questions 41

During ndu pre-check, a partner found that metadata-backup is not working. In addition, metadata-backup volume components have been renamed.

How can the problem be resolved?

Options:

A.

Provision two new metadata volumes

Re-run configuration metadata-backup

B.

Meta-volume destroy the actual metadata_backup

Re-run configuration metadata-backup

unclaimmetadata_backup

C.

unclaimmetadata_backup

Re-run configuration metadata-backup

D.

Meta-volume destroy the actual metadata_backup

schedule remove actual backup job

unclaimmetadata_backup

re-run configuration metadata-backup

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Questions 42

During an installation, the physical equipment inspection reveals an ESX host used for VPLEX Witness is located in the same rack as VPLEX cluster 1 Engine. What needs to be done?

Options:

A.

The VPLEX Witness server must be placed in a separate failure domain.

B.

VPLEX Witness server must be in a separate cabinet in the same data center.

C.

VPLEX Witness must exist on an HA ESX Host

D.

VPLEX Witness must exist on an FT ESX Host

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Questions 43

Which command-line option can be invoked within VPlexcli as a task to recognize and use new LUNs provisioned to a cluster?

Options:

A.

storage-volume discover

B.

storage-volume resurrect

C.

storage-volume find-array

D.

storage-volume claim

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Questions 44

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 45

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 46

The monitor report is added to the scheduler with the command schedule add "0 1 * * *“ –c report poll-monitors

When is task scheduled to execute?

Options:

A.

1 AM every day

B.

First day of the month

C.

First day of the week

D.

Once every hour

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Questions 47

What are key benefits of storage virtualization with VPLEX?

Options:

A.

Ease of consolidations; device mobility; simplifying management; provisioning of multiple arrays.

B.

Consolidations; point-in-time backups; simplifying management; third-party array support.

C.

Device performance; point-in-time backups; third party array support; device mobility

D.

Synchronous SAN extension across long distances; device mobility; and third-party array support

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Questions 48

Refer to the exhibit.

E20-260 Question 48

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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Questions 49

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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Questions 50

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

Options:

A.

rule-set-name = cluster-1-detaches

B.

rebuild-allowed = true

C.

auto-resume-at-loser = true

D.

rebuild-type = full

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Questions 51

Refer to the exhibit.

E20-260 Question 51

You are performing a health-check on a VPLEX VS2 Metro system. After running several commands, you notice port errors on the VPLEX directors.

What does the information listed under Checking ports status indicate?

Options:

A.

Not all Local-COM ports have been enabled.

B.

Not all BE ports have been enabled.

C.

Not all FE ports have been enabled.

D.

Not all WAN-COM ports have been enabled.

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Questions 52

What is the role of the port with the WWN 5000144270061010 on a VS2 engine?

Options:

A.

Back-end

B.

Front-end

C.

Local-COM

D.

WAN-COM

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Questions 53

Refer to the exhibit.

E20-260 Question 53

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

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Questions 54

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

Options:

A.

WWPN

B.

LUN ID

C.

VPD ID

D.

FCID

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Questions 55

Which VPLEX component can determine the difference between a partition and a site failure of a VPLEX Metro configuration?

Options:

A.

VPLEX Witness

B.

Management Server

C.

Cluster 1 Engine 1

D.

Consistency Group

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Questions 56

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

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Questions 57

Following EMC best practices, what information is required to register a VPLEX on an ESRS portal?

Options:

A.

Site ID; cluster TLA serial number; Management server eth3 IP address

B.

License ID; engine serial number; Management server eth3 IP address

C.

Site ID; engine serial number; Management server eth3 IP address

D.

Site ID; cluster TLA serial number; Witness IP address

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Questions 58

What is the maximum number of Virtual Volumes that can be created in a VPLEX Version 5 Cluster?

Options:

A.

2000

B.

4000

C.

8000

D.

16000

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Questions 59

What is true about VPLEX CLI?

Options:

A.

User can press the tab key to display all valid commands within the current context.

B.

“Storage-volume claim” command can be used in root context VPlexcli.

C.

Command syntax option –d is short for –default.

D.

Command “Connectivity validate-be” shows which ports can communicate with each other.

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Questions 60

What VPLEX user account is required to manage user security?

Options:

A.

admin

B.

service

C.

root

D.

user

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Questions 61

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 62

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. What VPLEX object allows for future incremental re-synchronization with the remote mirror once the link is restored?

Options:

A.

Logging Volumes

B.

VPLEX Witness

C.

Metadata Volumes

D.

Management Server

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Questions 63

A customer has a database application that has multiple distributed virtual volumes. They want to ensure that in the event that one of their data centers goes offline, the virtual volumes will all be available to the surviving site.

What VPLEX option should they implement?

Options:

A.

Data Mobility

B.

Consistency Groups

C.

Distributed Device

D.

Remote Access

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Exam Code: E20-260
Exam Name: VPLEX Specialist Exam for Implementation Engineers
Last Update: Apr 30, 2026
Questions: 210

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