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1V0-21.20 Exam Prep Free

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  • 1V0-21.20 Exam Prep Free – 50 Practice Questions to Get You Ready for Exam Day
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1V0-21.20 Exam Prep Free – 50 Practice Questions to Get You Ready for Exam Day

Getting ready for the 1V0-21.20 certification? Our 1V0-21.20 Exam Prep Free resource includes 50 exam-style questions designed to help you practice effectively and feel confident on test day

Effective 1V0-21.20 exam prep free is the key to success. With our free practice questions, you can:

  • Get familiar with exam format and question style
  • Identify which topics you’ve mastered—and which need more review
  • Boost your confidence and reduce exam anxiety

Below, you will find 50 realistic 1V0-21.20 Exam Prep Free questions that cover key exam topics. These questions are designed to reflect the structure and challenge level of the actual exam, making them perfect for your study routine.

Question 1

Refer to the exhibit:
 Image
After the "Service 1.5" snapshot is deleted, which snapshot will be the current state for the virtual machine?

A. Service 2

B. Service 1

C. Photon-01

D. Service 1.5

 


Suggested Answer: B

Community Answer: D

Reference:
https://kb.vmware.com/s/article/1023657#:~:text=Deleting%20a%20snapshot%20removes%20the,virtual%20machine%20or%20other%20snapshots

Question 2

Which file system protocol is supported by vSphere?

A. SAN

B. vSAN

C. iSCSI

D. NFS

 


Suggested Answer: D

Community Answer: D

 

Question 3

Which vSphere component provides continuous availability for mission-critical virtual machines so users experience no loss of data and no interruption in service during a host failure?

A. vSphere Fault Tolerance

B. vSphere vMotion

C. vSphere Replication

D. vSphere HA

 


Suggested Answer: A

Community Answer: A

Reference:
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.avail.doc/GUID-623812E6-D253-4FBC-B3E1-6FBFDF82ED21.html

Question 4

Which vSphere feature protects against host hardware failures by restarting virtual machines (VMs) on hosts that are running in the cluster?

A. vSphere vMotion

B. vSphere Fault Tolerance

C. vSphere DRS

D. vSphere HA

 


Suggested Answer: D

Community Answer: D

 

Question 5

Which piece of information does vSphere DRS consider when making decisions about which host to place a virtual machine?

A. Storage bandwidth on the host

B. Network usage by the virtual machine

C. Network bandwidth on the host

D. Disk usage by the virtual machine

 


Suggested Answer: C

Community Answer: C

Reference:
https://www.nakivo.com/blog/what-is-vmware-drs-cluster/

Question 6

Which IP storage is supported on vSphere?

A. vSAN

B. SCSI

C. iSCSI

D. SAN

 


Suggested Answer: C

Community Answer: C

 

Question 7

An administrator wants to ensure that a copy of a virtual machine can still power up on another data center during a disaster.
Which feature meets this requirement?

A. vSphere High Availability

B. vMotion

C. Fault Tolerance

D. vSphere Replication

 


Suggested Answer: A

Community Answer: D

Reference:
https://www.computerweekly.com/feature/Virtualisation-and-disaster-recovery-DR-features-in-VMware

Question 8

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

A. 95%

B. 70%

C. 15%

D. 50%

 


Suggested Answer: C

Community Answer: C

 

Question 9

An administrator is working on a cloud migration project. The project has a requirement to check the EVC mode for virtual machines (VMs) hosting an application.
How can the administrator find the EVC details for these VMs?

A. Right click VM > Migrate > Change storage only > Select Datastore > Next > Finish

B. Select Host > VMs > Show/Hide Column > EVC Mode

C. Right click VM > Migrate > Change compute resource only > Select Host > Next > Finish

D. Power off VM > Configure > VMware EVC

 


Suggested Answer: C

Community Answer: B

 

Question 10

A vSphere administrator is unable to remove an ESXi host from a vSphere Distributed Switch (VDS).
Which two reasons could have caused this issue? (Choose two.)

A. Virtual machine network adapters on the host are connected to the switch.

B. The ESXi host is connected to another VDS.

C. Virtual machine network adapters are faulty.

D. The VDS is configured with ingress traffic shaping.

E. The ESXi host has VMkernel adapters assigned to the switch.

 


Suggested Answer: AE

Community Answer: AE

Reference:
https://kb.vmware.com/s/article/2015435

Question 11

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

A. Its resource requirements are met most of the time.

B. It has poor performance in the current host.

C. It is in conflict over access to a shared resource.

D. It requires access to more resources as soon as possible.

 


Suggested Answer: A

Community Answer: A

Reference:
https://wuchikin.wordpress.com/2020/08/08/drs-in-vsphere-6-x-and-vsphere-7/

Question 12

An administrator needs to upgrade the guest operating system installed in a virtual machine.
The administrator wants to safely ensure that the selected operating system is supported by ESXi.
Which action should the administrator take to meet this goal?

A. Snapshot the VM before performing the operating system upgrade.

B. Perform a guest OS and product search in the VMware Compatibility Guide.

C. Check the web page of the guest operating system vendor.

D. Look in the guest OS version drop-down menu of the VM.

 


Suggested Answer: A

Community Answer: B

 

Question 13

Which two improvements to the management of a VM are gained when VMware Tools are used? (Choose two.)

A. Synchronizes time between the guest and the host

B. Adds VM alarms to the inventory

C. Performs a clone of the VM

D. Makes a graceful shutdown of the VM possible

E. Allows a snapshot before the guest OS is upgraded

 


Suggested Answer: AB

Community Answer: AD

 

Question 14

Which virtual machine (VM) problem is solved using vSphere Storage vMotion?

A. The vSphere Client shows that a VM needs to be consolidated.

B. VMs are running on one ESXi host that presents high CPU resource contention.

C. The storage array on which a VM is running requires to enter maintenance mode.

D. The ESXi host on which a VM is running requires to enter maintenance mode.

 


Suggested Answer: D

Community Answer: C

 

Question 15

An administrator has configured a Linux virtual machine and found that it does not have network connectivity. The administrator notices this when trying to ping the default gateway and nothing comes back. The administrator needs to verify that the guest operating system is configured properly.
What is the first step that the administrator should take to meet this goal?

A. Verify that VMware Tools has been loaded on the guest operating system

B. Ping an outside source to see if you get a response

C. Confirm the link status of the virtual switch

D. Check that the virtual network adapter is present and enabled

 


Suggested Answer: D

Community Answer: D

Reference:
https://kb.vmware.com/s/article/1003893

Question 16

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

A. SMB

B. VMFS

C. NFS

D. SCSI

 


Suggested Answer: B

Community Answer: B

Reference:
https://geek-university.com/vmware-esxi/virtual-machine-file-system-vmfs/#:~:text=VMFS%20(Virtual%20Machine%20File%20System,device%20at%

20the%20same%20time

Question 17

An administrator has been asked to keep domain controllers running on separate ESXi hosts.
Which type of VM/Host rule must be configured to meet this requirement?

A. Virtual Machines to Hosts

B. Virtual Machines to Virtual Machines

C. Keep Virtual Machines Together

D. Separate Virtual Machine

 


Suggested Answer: D

Community Answer: D

Reference:
https://dirteam.com/sander/2020/07/03/keeping-virtual-domain-controllers-apart-on-trusted-vmware-vsphere-hosts/

Question 18

An administrator is migrating 100 virtual machines from one ESXi Host to another. The current 1GigE network cards are only migrating four virtual machines simultaneously.
Which action should the administrator take to increase that number to eight?

A. Add more memory to the ESXi hosts

B. Configure port mirroring

C. Add a 10GigE network card to each ESXi host

D. Configure Load Balancing

 


Suggested Answer: B

Community Answer: C

 

Question 19

A VSphere operator can only configure up to two virtual CPUs when deploying a new virtual machine (VM).
 Image
What is the cause of this situation?

A. The selected ESXi host has only 2 CPUs

B. The selected cluster is not in DRS mode.

C. VMs support a maximum of 2 CPUs.

D. The compatibility selected is ג€ESXi 6.5 and laterג€.

 


Suggested Answer: A

Community Answer: A

 

Question 20

A group of VMs is experiencing high latency on a portgroup in an ESXi host.
Which option can a vSphere administrator use to move some of the VMs to another portgroup?

A. Network Port Binding

B. vSphere vMotion

C. IP hash

D. Network I/O Control

 


Suggested Answer: B

Community Answer: B

 

Question 21

Which feature helps maintain zero data loss when a VM on an ESXi server fails unexpectedly?

A. Fault Tolerance

B. vSphere High Availability

C. Storage vMotion

D. vMotion

 


Suggested Answer: B

Community Answer: A

 

Question 22

A system administrator opened a technical support trouble ticket and was asked to provide the suspended virtual machine's memory contents.
Which file from the virtual machine directory will the system administrator need to upload to technical support?

A. vm.vmdk

B. vm.log

C. vm.vmss

D. vm.vmx

 


Suggested Answer: D

Community Answer: C

 

Question 23

Refer to the exhibit:
 Image
Which piece of information should a vSphere operator conclude about iSCSI-01?

A. The datastore failed because it reached its capacity limit.

B. The disk usage on the datastore is above 75%.

C. The datastore does not have any free capacity.

D. The datastore usage on disk was reset to green.

 


Suggested Answer: B

Community Answer: B

 

Question 24

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?

A. vSphere Fault Tolerance

B. Snapshots

C. vSphere vMotion

D. Cloning

 


Suggested Answer: D

 

Question 25

Which sequence of steps must a vSphere operator take to create an NFS datastore for a host, a cluster, or a data center?

A. From the Datastores tab, select NFS > New Datastore

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

C. From the Actions drop-down menu, select NFS > New Datastore

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

 


Suggested Answer: C

Community Answer: D

Reference:
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.storage.doc/GUID-B52657D0-248D-4A99-99CC-D35B350461D5.html

Question 26

Which software-defined, object-based storage solution provides shared storage for vSphere clusters without using traditional external storage?

A. NFS

B. vVOLs

C. iSCSI

D. vSAN

 


Suggested Answer: C

Community Answer: D

 

Question 27

Which configuration setting prevents a packet sniffing program from analyzing network packets on the virtual switch?

A. Forged Transmits set to Accept

B. Forged Transmits set to Reject

C. Promiscuous Mode set to Reject

D. Promiscuous Mode set to Accept

 


Suggested Answer: C

 

Question 28

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?

A. Power

B. Network

C. Virtual disk

D. Memory

 


Suggested Answer: C

Community Answer: D

 

Question 29

Which two storage protocols can a virtual infrastructure operator use to create a VMFS datastore? (Choose two.)

A. SMB

B. iSCSI

C. Fibre Channel

D. NFS

E. CIFS

 


Suggested Answer: BC

Community Answer: BC

 

Question 30

A company has a few virtual machines running software XYZ that only support the current CPU type. With hardware refresh, the company wants to leverage the new processor features for all VMs except for VMs running software XYZ.
Which feature meets this requirement?

A. Cluster-Level EVC

B. vSphere High Availability

C. Per-VM EVC

D. vSphere vMotion

 


Suggested Answer: C

Community Answer: C

Reference:
https://virtuallyvtrue.com/2019/12/16/vsphere-6-7-what-is-per-vm-evc-and-how-to-configure-manage/

Question 31

Which action should an administrator use to restore a virtual machine to a previous state?

A. Take snapshot

B. Revert to the latest snapshot

C. Delete all snapshots

D. Consolidate snapshot

 


Suggested Answer: B

Community Answer: B

Reference:
https://vdc-repo.vmware.com/vmwb-repository/dcr-public/8f96698a-0e7b-4d67-bb6c-d18a1d101540/ef536a47-27cd-481a-90ef-76b38e75353c/doc/

GUID-EFA0F8CF-4221-45A7-AD9E-350B1467E845.html

Question 32

An administrator has applied a Service 2 patch after taking a snapshot. The administrator then realizes that a Service 1.5 patch should have been applied before the Service 2 patch.
Refer to the exhibit:
 Image
Which series of actions should be taken to manage this issue?

A. Remain at Service 2, take a snapshot, and apply Service 1.5 patch.

B. Delete Service 1, take a snapshot, and apply Service 1.5 patch.

C. Delete all the snapshots, take a snapshot, and apply Service 1.5 patch.

D. Revert to Service 1, take a snapshot, and apply Service 1.5 patch.

 


Suggested Answer: D

 

Question 33

An administrator has noticed an increase in network latency when powered-off virtual machines are migrated.
Which VMkernel adapter can the administrator use to reduce this latency?

A. vSAN

B. vMotion

C. Provisioning

D. vSphere Replication

 


Suggested Answer: C

Community Answer: C

Reference:
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.troubleshooting.doc/GUID-6F893381-BD0B-4825-B4CD-414854A9D9D9.html

Question 34

An administrator is asked to copy a single hard disk from one datastore to another.
Which virtual machine file type should the administrator select?

A. vmss

B. vswp

C. vmdk

D. vmx

 


Suggested Answer: C

Community Answer: C

 

Question 35

Which two physical resources are abstracted by the hypervisor and presented to virtual machines? (Choose two.)

A. Libraries

B. CPU

C. Application

D. Desktop

E. Memory

 


Suggested Answer: CD

Community Answer: BE

 

Question 36

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

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

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

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

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

 


Suggested Answer: D

Community Answer: B

 

Question 37

An administrator wants to deploy virtual machines on Windows 10 desktop.
Which option accomplishes this goal?

A. Add an additional CD-ROM

B. Install Windows patches

C. Install a Type-2 hypervisor

D. Add additional network interface

 


Suggested Answer: C

Community Answer: C

Reference:
https://phoenixnap.com/kb/what-is-hypervisor-type-1-2

Question 38

Which two configuration options can only be enabled on distributed switches? (Choose two.)

A. Port Mirroring

B. VLAN IDs

C. NetFlow

D. NIC Teaming

E. Load Balancing

 


Suggested Answer: DE

Community Answer: AC

Reference:
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.networking.doc/GUID-B15C6A13-797E-4BCB-B9D9-5CBC5A60C3A6.html

Question 39

On a vSphere Standard Switch, which setting should an administrator configure to improve the networking efficiency by increasing the amount of payload data transmitted with a single packet?

A. VLAN

B. NIC Teaming

C. LACP

D. MTU (Bytes)

 


Suggested Answer: D

Community Answer: D

 

Question 40

Which name identifies a VMkernel port in a virtual networking configuration?

A. vSwitch1

B. VM Network

C. vmnic1

D. vmk1

 


Suggested Answer: D

Community Answer: D

Reference:
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.networking.doc/GUID-1C0D8D8D-F9A5-4443-9AE7-544742630D39.html

Question 41

Which feature must be enabled to configure vSphere Proactive HA?

A. vSphere HA

B. Cluster EVC

C. vSphere DRS

D. Fault Tolerance

 


Suggested Answer: C

Community Answer: C

Reference:
http://www.vmwarearena.com/vsphere-6-5-high-availability-new-features-proactive-ha/

Question 42

During a virtual machine migration, which VMkernel networking layer handles the traffic?

A. vSphere vMotion

B. vSAN

C. IP storage

D. Fault Tolerance

 


Suggested Answer: C

Community Answer: A

 

Question 43

An administrator must ensure that virtual machines have their initial placement performed automatically and that migration recommendations are displayed but not applied.
Which vSphere DRS Automation Level should the administrator use?

A. Manual

B. Aggressive

C. Partially Automated

D. Fully Automated

 


Suggested Answer: C

Community Answer: C

 

Question 44

Which VMware feature would an administrator configure to migrate VMs using vSphere vMotion between ESXi hosts with different underlying CPU architectures?

A. vSphere Storage DRS

B. Enhanced vMotion Compatibility (EVC)

C. vSphere HA

D. VMware Fault Tolerance

 


Suggested Answer: B

Community Answer: B

Reference:
https://kb.vmware.com/s/article/1003212

Question 45

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?

A. Admission Control

B. VM Monitoring

C. Host Failure Response

D. Response for Host Isolation

 


Suggested Answer: D

Community Answer: D

Reference:
https://kb.vmware.com/s/article/2034571

Question 46

A developer is concerned about a virtual machine's CPU usage over the past month.
How can an administrator show the CPU usage over this time period to the developer?

A. Select the VM’s Summary tab, then view the VM Hardware pane.

B. Select the VM’s Summary tab, then view CPU Usage.

C. Select the VM’s Monitor tab, then select Overview.

D. Select the VM’s Monitor tab, then select Events.

 


Suggested Answer: B

Community Answer: C

Reference:
https://searchitchannel.techtarget.com/feature/Monitoring-vSphere-CPU-and-memory-usage

Question 47

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?

A. Send SNMP traps

B. Run a PowerCLI command

C. Run script

D. Send email notifications

 


Suggested Answer: C

Community Answer: C

Reference:
https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.monitoring.doc/GUID-AB74502C-5F01-478D-AF66-672AB5B8065C.html

Question 48

An administrator is browsing a datastore and notices a file with a .vmtx extension.
What are the contents of this file?

A. Virtual disk characteristics

B. Virtual machine snapshot

C. Template configuration

D. Virtual machine configuration

 


Suggested Answer: D

Community Answer: C

Reference:
https://www.filesuffix.com/en/extension/vmtx

Question 49

Which feature must an administrator use to revert back to the previous version of a VM template?

A. Content Library

B. VM Snapshots

C. Storage vMotion

D. VMware Tools

 


Suggested Answer: A

Community Answer: A

Reference:
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vm_admin.doc/GUID-D69B0279-CC9B-495B-9CA3-AE975AF9C865.html

Question 50

Traditional operating systems allocate resources such as CPU and memory for applications installed on computers.
Which vSphere component schedules resources for virtual machines in a similar way?

A. Virtual Hardware

B. VMware Tools

C. ESXi Hypervisor

D. vCenter Server

 


Suggested Answer: D

Community Answer: C

Reference:
https://docs.vmware.com/en/VMware-vSphere/6.0/vsphere-esxi-vcenter-server-601-resource-management-guide.pdf

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