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Free Practice Questions for the VMware VCP-DCV 2020 2V0-21.20PSE Exam (2026 Updated)

At Marks4sure, we are dedicated to providing IT professionals with the most accurate and reliable preparation materials for the VMware 2V0-21.20PSE exam. To support your certification journey, we have made a selection of our premium 2026 VCP-DCV 2020 practice questions and answers available completely free. You can take this practice test as many times as you need. Every question includes a detailed, expertly verified explanation to ensure you fully grasp the core security concepts before test day.

Questions 4

A development team has a recurring need to rapidly replicate hundreds of virtual machines (VMs) for load testing.

Which method should the team use to deploy the VMs? (Choose the best answer.)

Options:

A.

Linked clones from a content library

B.

Instant clones using the vSphere API

C.

Full clones using vSphere Auto Deploy

D.

Full clones from a template

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Questions 5

An administrator wants to enable bandwidth allocation for workloads by using Network I/O Control.

What should the administrator configure to accomplish this? (Choose the best answer.)

Options:

A.

Management traffic

B.

Virtual machine traffic

C.

Load-balancing

D.

NIC teaming policy

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Questions 6

What is a pre-requisite for configuring virtualization-based security (VBS)? (Choose the best answer.)

Options:

A.

Change the firmware type from UEFI to Legacy BIOS

B.

Change the firmware type from Legacy BIOS to UEFI

C.

Use Windows Server 2012

D.

Use Windows Server 2008 R2

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Questions 7

An administrator is investigating the reason for a powered on virtual machine failing to migrate with the following error log message:

2V0-21.20PSE Question 7

Which step should the administrator complete to resolve this error? (Choose the best answer.)

Options:

A.

Configure High Availability on the cluster.

B.

Configure vSAN on the cluster.

C.

Configure Distributed Resource Scheduler (DRS) on the cluster.

D.

Configure Enhanced vMotion Compatibility on the cluster.

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Questions 8

Which feature is a pre-requisite for configuring admission control on a cluster? (Choose the best answer.)

Options:

A.

vSphere Enhanced vMotion Compatibility (EVC)

B.

vSphere High Availability (HA)

C.

vSphere Fault Tolerance

D.

vSphere Distributed Resource Scheduler (DRS)

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Questions 9

Which type of network adapter is designed to provide connectivity to hosts and handle the standard system traffic of vSphere vMotion? (Choose the best answer.)

Options:

A.

VMkernel port

B.

VXLAN virtual tunnel end point (VXLAN VTEP)

C.

Virtual machine network interface card (VMNIC)

D.

VM network

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Questions 10

What is the basic packaging for vSphere Installation Bundles (VIBs) and metadata in vSphere Lifecycle Manager? (Choose the best answer.)

Options:

A.

Vendor add-on

B.

Base image

C.

Component

D.

Baseline

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Questions 11

Which feature is a prerequisite for Proactive High Availability (HA)? (Choose the best answer.)

Options:

A.

vCenter High Availability

B.

vSAN Cluster

C.

Predictive Distributive Resource Scheduler (DRS)

D.

vSphere Distributive Resource Scheduler (DRS)

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Questions 12

Which two statements are true regarding the use of firmware update packages in vSphere Lifecycle Manager? (Choose two.)

Options:

A.

A hardware support manager must be registered as a vCenter Server extension.

B.

The firmware and drivers add-on are distributed through the official VMware online depot.

C.

The firmware and drivers add-on can be used on clusters that are managed with baselines.

D.

The firmware and drivers add-on can add or remove components from the ESXi base image.

E.

The firmware and drivers add-on is provided by a third-party vendor.

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Questions 13

What is the default shutdown order of virtual machines (VMs) on a host? (Choose the best answer.)

Options:

A.

Alphabetical based on VM names

B.

Highest utilization to lowest utilization

C.

Largest VM to smallest VM

D.

Reverse of the startup order

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Questions 14

An administrator adds an additional host to a cluster and is attempting to remediate the configuration with a host profile.

Which option would the administrator select on the host before it can be remediated with an existing host profile? (Choose the best answer.)

Options:

A.

Export Host Customizations

B.

Export Host Profile

C.

Attach Host Profile

D.

Copy Settings from Host

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Questions 15

ESXi provides VLAN support by assigning a VLAN ID to which component? (Choose the best answer.)

Options:

A.

Virtual standard switch

B.

Physical network interface card (NIC)

C.

Virtual distributed switch

D.

Port group

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Questions 16

An administrator is running a variety of vSphere 6.5 cluster configurations and is tasked with upgrading to vSphere 7.0.

Which two conditions could cause potential conflicts or outages to the virtual machines (VMs)? (Choose two.)

Options:

A.

The use of a Windows vCenter Server system

B.

Datastores attached to the hosts based on VMFS3

C.

The upgrade of a vSphere Distributed Switch with VMs attached

D.

The upgrade of an external platform services controller

E.

The use of third-party custom vSphere Installation Bundles (VIBs) installed on the ESXi hosts

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Questions 17

Which tool is used to monitor the vCenter Server Appliance resources? (Choose the best answer.)

Options:

A.

vimtop

B.

esxtop

C.

esxcli

D.

vmstat

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Questions 18

What are two pre-requisites for enabling ESXi secure boot? (Choose two.)

Options:

A.

External Key Management Service

B.

vCenter Server 7.0 or greater

C.

Trusted Platform Module version 2.0

D.

ESXi 7.0 or greater

E.

Unified Extensible Firmware Interface (UEFI)

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Questions 19

An administrator receives an escalation to investigate a low disk space alarm on a datastore. The administrator discovers that a snapshot has been accidentally taken on a production, write-intensive database server. The snapshot has grown to nearly 1 TB in size in less than an hour and continues growing every second.

Which behavior should the administrator expect while deleting the snapshot? (Choose the best answer.)

Options:

A.

ESXi will create a virtual RAM disk to cache ongoing database write activity; performance impact will be limited.

B.

ESXi will commit the snapshot delta disk into the base disk; ongoing database write activity could result in long stun times.

C.

ESXi will merge the snapshot delta disk into the base disk; the virtual machine will be briefly stunned.

D.

ESXi will instantly switch from the base disk to the snapshot delta disk with no performance impact.

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Questions 20

Which privilege is required to run the esxtop utility? (Choose the best answer.)

Options:

A.

Root user

B.

vStatsUser

C.

vStatsAdmin

D.

Administrator

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Questions 21

An administrator is tasked with upgrading an existing VMware vSphere 6.5 environment to version 7.0. There are existing VMFS3 and VMFS5 datastores in the environment.

Which two statements are true regarding this upgrade? (Choose two.)

Options:

A.

VMFS5 is no longer supported with ESXi 7.0.

B.

VMFS3 is no longer supported with ESXi 7.0.

C.

An ESXi 7.0 host can automatically upgrade a VMFS5 datastore.

D.

An ESXi 7.0 host will automatically upgrade a VMFS3 datastore when discovered.

E.

A VMFS3 datastore cannot be upgraded; a new VMFS6 datastore is required.

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Questions 22

Which step is required when adding an existing hard disk that is configured as a boot disk during virtual machine creation? (Choose the best answer.)

Options:

A.

Enable Secure Boot.

B.

Select ‘RDM Disk’ from the ‘Add New Device’ drop-down menu.

C.

Remove the existing disk before adding the boot disk.

D.

Set the boot delay to at least 5,000 milliseconds.

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Questions 23

An administrator is unable to manage certificates with the vSphere Client.

What is another supported option that can be used to manage certificates? (Choose the best answer.)

Options:

A.

vCenter Server Management Interface

B.

Command Line Interface

C.

vRealize Operations Manager

D.

Cloud Builder

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Questions 24

Which VMware feature should an administrator configure to help manage and delegate CPU and memory resources? (Choose the best answer.)

Options:

A.

VMware Enhanced vMotion Compatibility (EVC)

B.

Resource pools

C.

vSphere Distributed Resource Scheduler (DRS)

D.

vSphere High Availability (HA)

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Questions 25

A company has a vSphere environment consisting of the following characteristics:

    A content library named ‘CORP’ is published at corporate headquarters on a vCenter Server named ‘vcenterCorp’.

    A regional data center contains a set of hosts managed by a vCenter Server named vcenterR1.

    vcenterR1 subscribes to the CORP content library.

The administrator wants to create a new virtual machine image to use on vcenterR1. What are two possible ways the administrator can accomplish this task? (Choose two.)

Options:

A.

Configure vcenterR1 to download all library content immediately.

B.

Upload the new image to the CORP library on vcenterR1.

C.

Publish the CORP content library on vcenterR1.

D.

Upload the new image to the CORP library on vcenterCorp.

E.

Upload the new image to a local content library on vcenterR1.

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Questions 26

Each logical port on a vSphere standard switch can be a member of how many port groups? (Choose the best answer.)

Options:

A.

4

B.

3

C.

1

D.

2

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Questions 27

What is the minimum number of ESXi hosts required to support vCenter High Availability? (Choose the best answer.)

Options:

A.

6

B.

3

C.

2

D.

4

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Questions 28

Which virtual disk option allows a virtual machine to consume the minimum storage capacity? (Choose the best answer.)

Options:

A.

Independent persistent

B.

Lazy-zeroed thick-provisioned

C.

Eager-zeroed thick-provisioned

D.

Thin-provisioned

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Questions 29

Which local only host utility is used for primary, real-time performance monitoring in vSphere? (Choose the best answer.)

Options:

A.

resxtop

B.

top

C.

esxtop

D.

vSphere Command-Line Interface (CLI)

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Questions 30

An administrator runs a two-node vSphere cluster, which contains two domain controller virtual machines (VMs). The administrator wants to ensure that VMs run on separate hosts without interfering with normal maintenance operations.

How should the administrator configure Distributed Resource Scheduler (DRS)? (Choose the best answer.)

Options:

A.

Create a ‘Must run Virtual Machines to Hosts’ anti-affinity rule.

B.

Create a ‘Virtual Machines to Virtual Machines’ anti-affinity rule.

C.

Create a ‘Virtual Machines to Virtual Machines’ dependency rule.

D.

Create a ‘Should run Virtual Machines to Hosts’ anti-affinity rule.

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Questions 31

Refer to the exhibit.

2V0-21.20PSE Question 31

Which element is missing from this vCenter High Availability (HA) cluster? (Choose the best answer.)

Options:

A.

A secondary witness node

B.

The management interface on the passive node

C.

The connection between the active and passive nodes

D.

The management interface and connection on the witness node

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Questions 32

Which feature can an administrator use for site availability with minimal effort and a low recovery point objective (RPO)? (Choose the best answer.)

Options:

A.

vSphere vMotion

B.

vSphere High Availability

C.

vSphere Replication

D.

vSphere Fault Tolerance

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Exam Code: 2V0-21.20PSE
Exam Name: Professional VMware vSphere 7.x
Last Update: Sep 13, 2026
Questions: 109

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