1V0-21.20 Dump Free – 50 Practice Questions to Sharpen Your Exam Readiness.
Looking for a reliable way to prepare for your 1V0-21.20 certification? Our 1V0-21.20 Dump Free includes 50 exam-style practice questions designed to reflect real test scenarios—helping you study smarter and pass with confidence.
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Below, you will find 50 free questions from our 1V0-21.20 Dump Free collection. These cover key topics and are structured to simulate the difficulty level of the real exam, making them a valuable tool for review or final prep.
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
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
Refer to the exhibit:An administrator deletes the Service 1.5 snapshot. What is the result of this action?
A. Deletion of all snapshots.
B. Reversion to Service 2 snapshot, and Service 1 snapshot will be deleted.
C. Reversion to Service 1 snapshot, and Service 2 snapshot will remain.
D. Reversion to Service 1 snapshot, and Service 2 snapshot will be deleted.
Which hardware is required to support Fibre Channel storage?
A. NIC
B. HBA
C. CNA
D. iSCSI adapter
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
Which cluster file system is used by ESXi hosts to store virtual machines?
A. SMB
B. VMFS
C. NFS
D. SCSI
Which two characteristics describe vSphere HA? (Choose two.)
A. When vCenter Server experiences downtime, vSphere HA restarts VMs on unaffected hosts.
B. vSphere HA restarts VMs if their host becomes isolated in the management network.
C. In response to datastore accessibility failures, vSphere HA restarts VMs on unaffected hosts.
D. vSphere HA performs load balancing across the hosts in a cluster to prevent resource contention.
E. By keeping a secondary VM running at all times, vSphere HA protects VMs from data loss.
A vSphere administrator has multiple virtual machines running on a VMFS datastore. Which setting prioritizes the disk access for the virtual machines?
A. Disk Shares
B. Disk Mode
C. Hard disk
D. Disk type
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
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 remove all passthrough devices prior to enabling EVC.
C. The administrator did not separate out the hosts by processor type prior to enabling EVC.
D. The administrator did not configure vSphere HA prior to enabling EVC.
An administrator has observed an alert message in the vSphere UI related to a host's storage sensor hardware. Where should the administrator look for more information related to this alert?
A. Host > Monitor > Hardware Health > System Event Log
B. Host > Monitor > Hardware Health > Storage Sensors
C. Menu > Lifecycle Manager > Baselines
D. Host > Monitor > Skyline Health
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
An operator needs to take a snapshot of a VM before an upgrade. The application team needs the ability to restore the VM with a consistent state of the guest file system while keeping the VM online. How can the operator accomplish this task?
A. Right click VM > Migrate > Change Compute resource > Select Host > Finish
B. Right click VM > Power > Power Off > Actions > Compatibility > Upgrade VM Compatibility > OK
C. Power Off VM > right click VM > Snapshots > Take Snapshot > OK
D. Right click VM > Snapshots > Take Snapshot > Choose option to quiesce guest file system > OK
An administrator has been tasked with associating multiple uplink adapters with a single switch that will share the load of traffic. Which networking feature should the administrator configure?
A. VLAN
B. Distributed Port Group
C. NIC Teaming
D. Host Proxy Switch
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
An administrator notices a virtual machine named vm01 is missing from the inventory, but the configuration files can be located. Which file should the administrator click on to register the VM?
A. vm01.nvram
B. vm01.vmx
C. vm01.vmsd
D. vm01.vmdk
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 speeds. Which vSphere Distributed Switch setting accomplishes this goal?
A. Teaming and failover
B. Traffic shaping
C. Monitoring
D. Security
Refer to the exhibit:Which statement is true about the access privileges of User 1?
A. User 1 has administrator privileges to all objects in the Test and Dev folder.
B. User 1 has administrator privileges to all VMs in the Production folder.
C. User 1 has read-only privileges to all objects in the Production folder.
D. User 1 has read-only privileges to the Dev01 VM in the Test and Dev folder.
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. The VMs cloning operations did not complete.
B. A reboot of vCenter Server impacted vSphere HA.
C. The host is still running but has disconnected from the network.
D. The VMs encountered an error during migration using vSphere vMotion.
What is a benefit of VMware vSphere Storage APIs - Data Protection?
A. It allows backup of a virtual machine with a backup agent in the guest OS.
B. It facilitates decentralized, on-host, LAN-free backup of vSphere virtual machines.
C. It increases ESX host resources to do backup processing.
D. It enables centralized, off-host, LAN-free backup of vSphere virtual machines.
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
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
Which name identifies a VMkernel port in a virtual networking configuration?
A. vSwitch1
B. VM Network
C. vmnic1
D. vmk1
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.
Which vSphere feature mitigates common optimization challenges?
A. vSphere Trust Authority
B. vSphere High Availability
C. vSphere DRS
D. vSphere Fault Tolerance
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
Which DRS score indicates that the virtual machine (VM) is experiencing severe resource contention?
A. 95%
B. 70%
C. 15%
D. 50%
Which hypervisor is a type-1 hypervisor?
A. VMware Fusion
B. VMware Workstation
C. Oracle VM VirtualBox
D. VMware ESXi
Which two block storage protocols are supported on vSphere? (Choose two.)
A. SAN
B. SMB
C. NFSv4.1
D. iSCSI
E. NFSv3
Which two vSphere features help address an organization's business availability challenges? (Choose two.)
A. vSphere Pod Service
B. vSphere Trust Authority
C. vSphere DPM
D. vSphere High Availability
E. vSphere Fault Tolerance
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
What is the purpose of the VMware Tools balloon driver?
A. To provide a high-resolution display for the VM’s console
B. To improve a VM’s network performance
C. To provide fast and efficient communication between VMs
D. To improve a VM’s memory management capabilities
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
What is the default encrypted vSphere vMotion state for virtual machines that are not encrypted?
A. Opportunistic
B. Disabled
C. Required
D. Enabled
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
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
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
Refer to the exhibit: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.
Refer to the exhibit:Which statement is true about the access privileges of User 2?
A. User 2 has no access to all objects in the Production folder and Test and Dev folder.
B. User 2 has access to all objects in the Production folder and no access to Dev01, Dev02, and Dev03.
C. User 2 has virtual machine power user privileges to Prod04-3.
D. User 2 has virtual machine power user privileges to all VMs in the Production folder.
A vSphere operator finds this error message: Device or filesystem with identifier [naa.1234567890] has entered the All Paths Down state. What should the operator conclude from this error message?
A. A host failed, and automated recovery of affected VMs is expected.
B. A storage device is inaccessible and is expected to become available.
C. A host is inaccessible, and migration of affected VMs is expected.
D. A storage device has failed and is not expected to become available.
During a virtual machine migration, which VMkernel networking layer handles the traffic?
A. vSphere vMotion
B. vSAN
C. IP storage
D. Fault Tolerance
A system administrator has to configure several virtual machines for different business units. The administrator needs to enable features that allow overcommitment of resources while adhering to the business requirements and different department performance SLAs. Which two features should the administrator enable to achieve this goal? (Choose two.)
A. vSphere Fault Tolerance
B. vSphere Resource Pools
C. vSphere High Availability
D. vSphere Storage I/O Control
E. vSphere Distributed Power Management
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
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.
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
A system administrator needs to configure a virtual machine to guarantee that it always gets the appropriate resources even if the host is overloaded and overcommitted. Which setting on the virtual machine does the administrator need to configure?
A. vSphere High Availability Admission Control
B. High Performance Power Policy
C. CPU and Memory Shares to High
D. CPU and Memory Reservations
Which vSphere component centralizes automated patch and version management for clusters, ESXi, drivers and firmware, Virtual Hardware, and VMware Tools?
A. vSphere Lifecycle Manager
B. vSphere DRS
C. Content Library
D. VMware Cloud Foundation
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 occur after the update. Which steps should be used in the vSphere Client to meet this requirement?
A. Right click on the VM > Clone > Clone to Template
B. Right click on the VM > Clone > Clone to Virtual Machine
C. Right click on the VM > Migrate
D. Right click on the VM > Snapshots > Take Snapshot
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. 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.
Which file system protocol is supported by vSphere?
A. SAN
B. vSAN
C. iSCSI
D. NFS
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