VMware 1V0-21.20 Actual Free Exam Questions & Community Discussion

Exam Code/Number: 1V0-21.20
Exam Name/Title: Associate VMware Data Center Virtualization
Certification Provider: VMware
Corresponding Certification: VMware Data Center Virtualization

Exam Questions: 105
Updated On: May 28, 2026

Question #8

A vSphere administrator sees the alarm:
vSphere HA virtual machine failed to failover
This occurred for virtual machines (VMs) in a cluster with vSphere High Availability (HA) enabled. The guest operating system on the VMs did not report a power failure.
What is a possible cause of this event?

A. A reboot of vCenter Server impacted vSphere HA.

B. The host is still running but has disconnected from the network.

C. The VMs encountered an error during migration using vSphere vMotion.

D. The VMs cloning operations did not complete.

Discussion 0

Correct Answer: B Vote an answer

Question #9

An administrator is trying to configure EVC on a cluster that has both AMD and Intel hosts, but the configuration is failing. What is causing this failure?

A. The administrator did not configure vMotion on all hosts prior to enabling EVC.

B. The administrator did not separate out the hosts by processor type prior to enabling EVC.

C. The administrator did not remove all passthrough devices prior to enabling EVC.

D. The administrator did not configure vSphere HA prior to enabling EVC.

Discussion 0

Correct Answer: B Vote an answer

Question #10

An administrator would like to add a new server into an existing vSphere cluster. The servers are running Intel processors. The administrator needs to ensure that the new server can be added to the cluster with the same processor baseline as the existing servers.
Which strategy should be used to achieve this goal?

A. Fault Tolerance

B. vSphere High Availability

C. vSphere vMotion

D. Enhanced vMotion Compatibility

Discussion 0

Correct Answer: D Vote an answer

Question #11

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 Replication

C. vSphere vmotion

D. vSphere HA

Discussion 0

Correct Answer: A Vote an answer

Question #12

Which vSphere feature mitigates common optimization challenges?

A. vSphere Trust Authority

B. vSphere Fault Tolerance

C. vSphere High Availability

D. vSphere DRS

Discussion 0

Correct Answer: D Vote an answer

Question #13

A virtual infrastructure operator needs to migrate a virtual machine
(VM).

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

A. Change the virtual disk format to Thick provision Eager Zeroed.

B. Select a different ESXi host for the VM

C. Select a cluster that has access to additional storage space.

D. Select a different datastore for the VM.

Discussion 0

Correct Answer: D Vote an answer

Question #14

A vSphere operator can only configure up to two virtual CPUs when deploying a new virtual machine (VM).
Refer to the exhibit:

What is the cause erf this situation?

A. The compatibility selected is "ESXi 6.5 and later".

B. The selected cluster is not in DRS mode.

C. The selected ESXI host has only 2 CPUs.

D. VMs support a maximum of 2 CPUs.

Discussion 0

Correct Answer: C Vote an answer

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