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Free VMware 1V0-21.20 Practice Questions & Answers 2026 Part1 | Associate VMware Data Center Virtualization

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Question #1
An administrator wants to ensure that a copy of a virtual machine canstill power up on another data center during a disaster.Which feature meets this requirement?
A. vSphere Replication
B. vMotion
C. vSphere High Availability
D. Fault Tolerance
E. Reveal Answer
View answer
Correct Answer: A

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Question #2
Refer to the exhibit.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.Which series of actions should be taken to manage this issue?
A. Delete all the snapshots, take a snapshot, and apply Service 1
B. Remain at Service 2, take a snapshot, and apply Service 1
C. Delete Service 1, take a snapshot, and apply Service 1
D. Revert to Service 1, take a snapshot, and apply Service 1
View answer
Correct Answer: D
Question #3
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. he compatibility selected is "ESXi 6
B. he selected ESXI host has only 2 CPUs
C. he selected cluster is not in DRS mode
D. Ms support a maximum of 2 CPUs
View answer
Correct Answer: B
Question #4
Refer to the exhibit.An administrator deletes the Service 1.5 snapshot. What is the result of this action?
A. Reversion to Service 1 snapshot, and Service 2 snapshot will remain
B. Reversion to Service 1 snapshot, and Service 2 snapshot will be deleted
C. Reversion to Service 2 snapshot, and Service 1 snapshot will be deleted
D. Deletion of all snapshots
View answer
Correct Answer: A
Question #5
What is the default encrypted vSphere vMotion state for virtual machines that are not encrypted?
A. Disabled
B. Required
C. Opportunistic
D. Enabled
View answer
Correct Answer: C
Question #6
Refer to the exhibit.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.Which series of actions should be taken to manage this issue?
A. Delete all the snapshots, take a snapshot, and apply Service 1
B. Remain at Service 2, take a snapshot, and apply Service 1
C. Delete Service 1, take a snapshot, and apply Service 1
D. Revert to Service 1, take a snapshot, and apply Service 1
View answer
Correct Answer: D
Question #7
Which two guest operating systems are supported when a virtualmachine must be deployed?
A. iOS
B. Microsoft Windows
C. Android
D. MacOS
E. T/TOS (tandem Transactional OS)
F. Reveal Answer
View answer
Correct Answer: BD
Question #8
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. Aggressive
B. Manual
C. Partially Automated
D. Fully Automated
View answer
Correct Answer: C
Question #9
An operator must deploy three virtual machines from a templatenamed Win10-Template, and all three VMs must be configured withunique computer names.Which action must the operator take to achieve this goal?
A. Clone Win10-Template three times, and then change the computername in each clone
B. Export Win10-Template to the local filesystem, and then change thecomputer name
C. Use a Windows 10 customization specification when deploying thevirtual machines
D. Create the virtual machines using the New virtual Machine wizard
View answer
Correct Answer: C
Question #10
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. AvSphere Replication
B. BvMotion
C. CvSphere High Availability
D. DFault Tolerance
View answer
Correct Answer: A
Question #11
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?
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
View answer
Correct Answer: D
Question #12
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. vSphere vMotlon
C. Cloning
D. Snapshots
E. Reveal Answer
View answer
Correct Answer: D
Question #13
A developer is concerned about a virtual machine's CPU usage overthe past month.How can an administrator show the CPU usage over this time period tothe 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 Events
D. Select the VM's Monitor tab, then select Overview
E. Reveal Answer
View answer
Correct Answer: D
Question #14
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. LACP
C. MTU (Bytes)
D. NIC Teaming
View answer
Correct Answer: C
Question #15
A group of VMs is experiencing high latency on a portgroup in an ESXi host.Which option can a vSphete administrator use to move some of the VMs to another portgroup?
A. IP hash
B. Network I/O Control
C. vSphere vMotion
D. Network Port Binding
View answer
Correct Answer: C
Question #16
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:Which series of actions should be taken to manage this issue?
A. emain at Service 2, take a snapshot, and apply Service 1
B. evert to Service 1, take a snapshot, and apply Service 1
C. elete Service 1, take a snapshot, and apply Service 1
D. elete all the snapshots, take a snapshot, and apply Service 1
View answer
Correct Answer: B
Question #17
Which vSphere component provides continuous availability formission-critical virtual machines so users experience no loss of data andno interruption in service during a host failure?
A. Sphere Replication
B. Sphere vmotion
C. Sphere HA
D. Sphere Fault Tolerance
View answer
Correct Answer: D
Question #18
Which IP storage is supported on vSphere?
A. SCSI
B. vSAN
C. SAN
D. ISCSI
View answer
Correct Answer: D
Question #19
An administrator needs to migrate a powered off virtual machine to another cluster with no shared storage.Which option should the administrator select for a successful migration?
A. Change compute resource only
B. Change both compute resource and storage
C. Migrate virtual machine(s) to a specific datacenter
D. Change storage only
View answer
Correct Answer: A
Question #20
An administrator has been tasked with associating multiple uplink adapters with a single switch that will share the load traffic. Which networking feature should the administrator configure?
A. Distributed Port Group
B. Host Proxy Switch
C. NIC Teaming
D. VLAN
View answer
Correct Answer: C
Question #21
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?
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
View answer
Correct Answer: D
Question #22
Which hypetvisor is a type - 1 hypervisor?
A. Oracle VM VirtualBox
B. VMware ESXi
C. VMware Fusion
D. VMware Workstation
View answer
Correct Answer: B
Question #23
Which configuration setting prevents a packet sniffing program from analyzing network packets on the virtual switch?
A. orged Transmits set to Accept
B. orged Transmits set to Reject
C. romiscuous Mode set to Reject
D. romiscuous Mode set to Accept
View answer
Correct Answer: D
Question #24
An administrator is trying to create an alarm action that runs a batchfile on a specific VM.Which alarm action should the administrator use?
A. Run a powerCLI command
B. Run script
C. Send SNMP traps
D. Send email notifications
View answer
Correct Answer: B
Question #25
What is the default encrypted vSphere vMotion state for virtual machines that are not encrypted?
A. Disabled
B. Required
C. Opportunistic
D. Enabled
View answer
Correct Answer: C
Question #26
A group of VMs is experiencing high latency on a portgroup in an ESXi host.Which option can a vSphete administrator use to move some of the VMs to another portgroup?
A. IP hash
B. Network I/O Control
C. vSphere vMotion
D. Network Port Binding
View answer
Correct Answer: C
Question #27
An administrator is trying to create an alarm action that runs a batchfile on a specific VM.Which alarm action should the administrator use?
A. un a powerCLI command
B. end email notifications
C. end SNMP traps
D. un script
View answer
Correct Answer: D
Question #28
Refer to the exhibit.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.Which series of actions should be taken to manage this issue?
A. Delete all the snapshots, take a snapshot, and apply Service 1
B. Remain at Service 2, take a snapshot, and apply Service 1
C. Delete Service 1, take a snapshot, and apply Service 1
D. Revert to Service 1, take a snapshot, and apply Service 1
View answer
Correct Answer: D
Question #29
A group of VMs is experiencing high latency on a portgroup in an ESXi host.Which option can a vSphete administrator use to move some of the VMs to another portgroup?
A. IP hash
B. Network I/O Control
C. vSphere vMotion
D. Network Port Binding
View answer
Correct Answer: C
Question #30
Which action should an administrator perform in the vSphere Client to create a VM template that can be used by more than one vCenter Server instance?
A. Right-click the VM > Clone > Clone to Template
B. Right-click the VM > Template > Convert to Template
C. Right-click the VM > Clone > Clone as Template to Library
D. Right-click the VM template > Convert to Virtual Machine
View answer
Correct Answer: C
Question #31
What is the default encrypted vSphere vMotion state for virtual machines that are not encrypted?
A. Disabled
B. Required
C. Opportunistic
D. Enabled
View answer
Correct Answer: C
Question #32
Which hypetvisor is a type-1 hypervisor?
A. Oracle VM VirtualBox
B. VMware ESXi
C. VMware Fusion
D. VMware Workstation
View answer
Correct Answer: B
Question #33
A group of VMs is experiencing high latency on a portgroup in an ESXi host.Which option can a vSphete administrator use to move some of the VMs to another portgroup?
A. IP hash
B. Network I/O Control
C. vSphere vMotion
D. Network Port Binding
View answer
Correct Answer: C
Question #34
Which IP storage is supported on vSphere?
A. SCSI
B. vSAN
C. SAN
D. ISCSI
View answer
Correct Answer: D
Question #35
A group of VMs is experiencing high latency on a portgroup in an ESXi host.Which option can a vSphete administrator use to move some of the VMs to another portgroup?
A. IP hash
B. Network I/O Control
C. vSphere vMotion
D. Network Port Binding
View answer
Correct Answer: C
Question #36
Which IP storage is supported on vSphere?
A. SCSI
B. vSAN
C. SAN
D. ISCSI
View answer
Correct Answer: D
Question #37
An administrator has been tasked with associating multiple uplink adapters with a single switch that will share the load traffic. Which networking feature should the administrator configure?
A. ADistributed Port Group
B. BHost Proxy Switch
C. CNIC Teaming
D. DVLAN
View answer
Correct Answer: C
Question #38
Which event type indicates a Fatal problem has occurred in the system, and the process or operation will be terminated?
A. nformation
B. rror
C. arning
D. udit
View answer
Correct Answer: C
Question #39
What is the default encrypted vSphere vMotion state for virtual machines that are not encrypted?
A. Disabled
B. Required
C. Opportunistic
D. Enabled
View answer
Correct Answer: C
Question #40
Which two block storage protocols are supported on vSphere? (Choose two.)
A. SAN
B. SMB
C. NFSv4
D. iSCSI
E. NFSv3
View answer
Correct Answer: BD
Question #41
Which name identifies a VMkernel port in a virtual networking configuration?
A. VM Network
B. vmnic1
C. vmk1
D. vSwitch1
View answer
Correct Answer: C
Question #42
Refer to the exhibit.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.Which series of actions should be taken to manage this issue?
A. Delete all the snapshots, take a snapshot, and apply Service 1
B. Remain at Service 2, take a snapshot, and apply Service 1
C. Delete Service 1, take a snapshot, and apply Service 1
D. Revert to Service 1, take a snapshot, and apply Service 1
View answer
Correct Answer: D
Question #43
Which DRS score indicates that the virtual machine (VM) is experiencing severe resource contention?
A. 50%
B. 95%
C. 70%
D. 15%
View answer
Correct Answer: D
Question #44
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. LACP
C. MTU (Bytes)
D. NIC Teaming
View answer
Correct Answer: C
Question #45
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. LACP
C. MTU (Bytes)
D. NIC Teaming
View answer
Correct Answer: C
Question #46
Refer to the exhibit.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.Which series of actions should be taken to manage this issue?
A. Delete all the snapshots, take a snapshot, and apply Service 1
B. Remain at Service 2, take a snapshot, and apply Service 1
C. Delete Service 1, take a snapshot, and apply Service 1
D. Revert to Service 1, take a snapshot, and apply Service 1
View answer
Correct Answer: D
Question #47
Traditional operating systems allocate resources such as CPU and memory for applications installed on computers. Which vSphere component schedules resource for virtual machines in a similar way?
A. virtual Hardware
B. vCenter Server
C. ESXi Hypervisor
D. VMware Tools
View answer
Correct Answer: AC
Question #48
Which DRS score indicates that the virtual machine (VM) is experiencing severe resource contention?
A. 50%
B. 95%
C. 70%
D. 15%
View answer
Correct Answer: D
Question #49
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?
A. he system administrator needs to migrate virtual machines using vSphere vMotion
B. he system administrator needs to schedule DRS to run again
C. Sphere Lifecycle Manager and DRS integration need to be configured
D. Sphere HA admission control needs to be enabled on the cluster
View answer
Correct Answer: A
Question #50
Refer to the exhibit.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.Which series of actions should be taken to manage this issue?
A. Delete all the snapshots, take a snapshot, and apply Service 1
B. Remain at Service 2, take a snapshot, and apply Service 1
C. Delete Service 1, take a snapshot, and apply Service 1
D. Revert to Service 1, take a snapshot, and apply Service 1
View answer
Correct Answer: D

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