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1V0-21.20 Associate VMware Data Center Virtualization Questions and Answers

Questions 4

An administrator is concerned that a VM has high ballooning activity and needs to check the default display of the Advanced Performance pane in the vSphere Client to confirm this activity.

Which view should the administrator choose in the default display?

Options:

A.

Network

B.

Power

C.

Memory

D.

Virtual disk

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Questions 5

Which feature allows an administrator to implement master copies of virtual machines to create ready-for-use virtual machines?

Options:

A.

Templates

B.

Resource Pools

C.

Snapshots

D.

Custom Attributes

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Questions 6

Which action should an administrator use to restore a virtual machine

to a previous state?

Options:

A.

Consolidate snapshot

B.

Revert to the latest snapshot

C.

Delete all snapshot

D.

Take snapshot

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Questions 7

A virtual infrastructure operator needs to migrate a virtual machine

(VM).

1V0-21.20 Question 7

Which action can the operator take to overcome the error message?

Options:

A.

Select a different datastore for the VM.

B.

Select a cluster that has access to additional storage space.

C.

Change the virtual disk format to Thick provision Eager Zeroed.

D.

Select a different ESXi host for the VM

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Questions 8

An administrator wants to deploy virtual machines on Windows 10

desktop.

What option accomplishes this goal?

Options:

A.

Add additional network interface

B.

Install Windows patches

C.

Install a Type-2 hypervisor

D.

Add an additional CD-ROM

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Questions 9

Which two configuration options can only be enabled on distributed

switches?

Options:

A.

NetFlow

B.

Port Mirroring

C.

NIC Teaming

D.

Load Balancing

E.

VLAN IDs

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Questions 10

A system administrator is preparing a host In a vSphere DRS cluster in partially automated mode for firmware patching and puts a host into maintenance mode. After several minutes, the host still has not entered maintenance mode.

How should the system administrator resolve this problem?

Options:

A.

The system administrator needs to schedule DRS to run again.

B.

vSphere Lifecycle Manager and DRS integration need to be configured.

C.

vSphere HA admission control needs to be enabled on the cluster.

D.

The system administrator needs to migrate virtual machines using vSphere vMotion.

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Questions 11

Which hardware is required to support Fibre Channel storage?

Options:

A.

ISCSI adapter

B.

HBA

C.

CNA

D.

NIC

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Questions 12

Which two vSphere features help address an organization ' s business availability challenges? (Choose two.)

Options:

A.

vSphere Fault Tolerance

B.

vSphere Pod Service

C.

vSphere DPM

D.

vSphere Trust Authority

E.

vSphere High Availability

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Questions 13

A vSphere administrator has multiple virtual machines running on a

VMFS datastore.

Which setting prioritizes the disk access for the virtual machines?

Options:

A.

Disk Shares

B.

Disk type

C.

Disk Mode

D.

Hard disk

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Questions 14

A vSphere administrator needs to create an exact replica of a virtual machine as a safeguard prior to changing the virtual machine configuration.

Which vSphere feature accomplishes this requirement?

Options:

A.

vSphere Fault Tolerance

B.

vSphere vMotlon

C.

Cloning

D.

Snapshots

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Questions 15

An administrator would like to enable a switch setting to restrict the

network bandwidth that is available to ports, but the solution must also

allow bursts of traffic to flow through at higher spends.

Which vSphere Distributed Switch setting accomplishes this goal?

Options:

A.

Monitoring

B.

teaming and failover

C.

Traffic shaping

D.

Security

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Questions 16

An administrator needs to update an OS running on a virtual machine

and wants to be able to revert to the previous state if any issues occure

after the update.

Which steps should be used in the vSphere Client to meet this

requirement?

Options:

A.

Right click on the VM > Migrate

B.

Right click on the VM > Snapshots > take Snapshot

C.

Right click on the VM > Clone to Template

D.

Right click on the VM > Clone to virtual Machine

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Questions 17

Which name identifies a VMkernel port in a virtual networking

configuration?

Options:

A.

VM Network

B.

vmnic1

C.

vmk1

D.

vSwitch1

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Questions 18

An administrator must configure vSphere HA to act upon virtual

machines when a host is disconnected from the management network.

Which option should the administrator use?

Options:

A.

Response for Host Isolation

B.

Admission Control

C.

VM Monitoring

D.

host Failure Response

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Questions 19

Which IP storage is supported on vSphere?

Options:

A.

SCSI

B.

vSAN

C.

SAN

D.

ISCSI

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Questions 20

What does it mean if a virtual machine (VM) has a high RDS score?

Options:

A.

It requires access to more resource as soon as possible.

B.

It has poor performance in the current host.

C.

It is in conflict over access to a shared resource.

D.

Its resource requirements are met most of the time.

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Questions 21

An administrator is tasked with evacuating a storage array because it

has been replaced.

Which feature meets this requirement?

Options:

A.

Predictive DRS

B.

Proactive HA

C.

Storage vMotion

D.

vSphere vmotion

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Questions 22

Which DRS score indicates that the virtual machine (VM) is experiencing severe resource contention?

Options:

A.

50%

B.

95%

C.

70%

D.

15%

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Questions 23

What is a benefit of VMware vSphere Storage APIs - Data Protection?

Options:

A.

It enables centralized, off-host. LAN-free backup of vSphere virtual machines.

B.

It allows backup of a virtual machine with a backup agent in the guest OS.

C.

It increases ESX host resources to do backup processing.

D.

It facilitates decentralized, on-host, LAN-free backup of vSphere virtual machines.

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Questions 24

Which sequence of steps must a vSphere operator take to create an

NFS datastore for a host, a cluster, or a data center?

Options:

A.

Right-click on an ESXi host, select Storage > New Datastore

B.

From the actions drop-down menu, select NFS > New datastore

C.

From the datastore tab, select NFS > New datastore

D.

Select an ESXi host, click the Configure tab > Storage Devices

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Questions 25

Which cluster file system is used by ESXi hosts to store virtual

machines?

Options:

A.

VMFS

B.

SCSI

C.

NFS

D.

SMB

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Questions 26

An administrator is trying to create an alarm action that runs a batch

file on a specific VM.

Which alarm action should the administrator use?

Options:

A.

Run a powerCLI command

B.

Run script

C.

Send SNMP traps

D.

Send email notifications

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Questions 27

Which problem is solved by migrating virtual machines (VMs) using vSphere vMotion?

Options:

A.

A vSphere cluster that needs to be upgraded without any VM downtime.

B.

A problem that occurred during VM patching and a roll-back is needed.

C.

The names of the VM files that do not match the inventory name of the VM.

D.

Heavy storage traffic and latency that are concentrated in a few datastores.

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Questions 28

Which piece of information does vSphere DRS consider when

making decisions about which host to place a virtual machine?

Options:

A.

Network bandwidth on the host

B.

Disk usage by the virtual machine

C.

Storage bandwidth on the host

D.

Network usage by the virtual machine

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Questions 29

Which vSphere feature provides continuous availability, allowing

users to protect any virtual machine from a host failure with no loss of

data or connectivity?

Options:

A.

vSphere vMotion

B.

Enhanced vMotion Compatibility

C.

vSphere Fault Tolerance

D.

vSphere HA

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Questions 30

A vSphere administrator has migrated a virtual machine between two ESXi hosts using vSphere vMotion and notices that the VM can no longer be pinged.

What caused this situation?

Options:

A.

The virtual machine has RDMs attached.

B.

A different datastore is being used after the migration.

C.

There is an MTU mismatch.

D.

The destination portgroup has an incorrect VLAN tag.

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Exam Code: 1V0-21.20
Exam Name: Associate VMware Data Center Virtualization
Last Update: May 6, 2026
Questions: 103

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