1V0-21.20 practice questions 21–30

1. Question 21 · 99 in bank

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

   • AVirtual disk characteristics
   • BVirtual machine snapshot
   • CTemplate configuration
   • DVirtual machine configuration

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   Answer: C

   Explanation

   The correct answer is C. A file with a .vmtx extension is a template configuration file in VMware vSphere. The template configuration file is used to create new VMs with the same settings as the original VM. This file contains information about the virtual hardware, guest OS, and other settings. It does not contain the virtual disk, which is stored in a separate file. When a VM is created from a template, a new .vmx file is created for the VM.

   Source: Adapted from community discussion — JokerRWild

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2. Question 22 · 99 in bank

   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?

   • AVirtual Machines to Hosts
   • BVirtual Machines to Virtual Machines
   • CKeep Virtual Machines Together
   • DSeparate Virtual Machine

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   Answer: D

   Explanation

   D is correct, see the "you Are Here" indication. It means that the current state of the VM is under that snapshot. Even if deleted, the VM is still in the same state of the snapshot as no revert was executed in the question.

   Source: Adapted from community discussion — dayanhay

   References

   • docs.vmware.com documentation

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3. Question 23 · 99 in bank

   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?

   • AvSphere High Availability
   • BvMotion
   • CFault Tolerance
   • DvSphere Replication

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   Answer: D

   Explanation

   D. vSphere Replication meets the requirement of ensuring that a copy of a virtual machine can still power up on another data center during a disaster. vSphere Replication is a disaster recovery solution that provides replication of virtual machines between two vSphere environments, allowing administrators to maintain business continuity during a disaster.

   Source: Adapted from community discussion — dinosan

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4. Question 24 · 99 in bank

   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?

   • AvSphere High Availability Admission Control
   • BHigh Performance Power Policy
   • CCPU and Memory Shares to High
   • DCPU and Memory Reservations

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   Answer: D

   Explanation

   The answer is not A. vSphere HA Admission Control HA Admission Control is set on the cluster, not on a VM. The question states, "Which setting on the VM does the admin need to configure?" With that in mind, the option that best answers the question is D. CPU and Memory Reservations. Please read both links below for more detail. vSphere HA Admission Control Info: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.avail.doc/GUID-53F6938C-96E5-4F67-9A6E-479F5A894571.html Resource Allocation Reservation Info: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.resmgmt.doc/GUID-8B88D3D8-E9D9-4C05-A065-B3DE1FFFB401.html?hWord=N4IghgNiBcIE4FMDOC4DcwBcCWB7AdkiAL5A

   Source: Adapted from community discussion — rc34yb23

   References

   • docs.vmware.com documentation
   • docs.vmware.com documentation
   • docs.vmware.com documentation

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5. Question 25 · 99 in bank

   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?

   • AAdmission Control
   • BVM Monitoring
   • CHost Failure Response
   • DResponse for Host Isolation

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   Answer: D

   Explanation

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

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6. Question 26 · 99 in bank

   What is the purpose of an alarm?

   • AIt keeps records of system actions and the frequency at which they occur.
   • BIt notifies about events or conditions that occur with an object in vCenter Server.
   • CIt represents system activities that do not complete immediately, such as migrating a virtual machine.
   • DIt records user actions or system actions that occur on objects in vCenter Server or on a host.

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   Answer: B

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7. Question 27 · 99 in bank

   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?

   • ARight click on the VM > Clone > Clone to Template
   • BRight click on the VM > Clone > Clone to Virtual Machine
   • CRight click on the VM > Migrate
   • DRight click on the VM > Snapshots > Take Snapshot

   Show answer

   Answer: D

   Explanation

   D. The administrator should take a snapshot of the virtual machine before updating the OS. In the vSphere Client, this can be done by right clicking on the VM > Snapshots > Take Snapshot. A snapshot captures the state, data, and configuration of a virtual machine at a specific point in time. By taking a snapshot before updating the OS, the administrator can revert to the previous state if any issues occur after the update. This allows the administrator to quickly revert the virtual machine to the previous state without having to manually undo any changes or restore from a backup. Taking snapshots is a best practice for making changes to virtual machines, as it provides a quick and easy way to revert to a known good state if issues occur.

   Source: Adapted from community discussion — dinosan

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8. Question 28 · 99 in bank

   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?

   • Avm01.nvram
   • Bvm01.vmx
   • Cvm01.vmsd
   • Dvm01.vmdk

   Show answer

   Answer: B

   Explanation

   B. The administrator should click on the file named vm01.vmx to register the virtual machine. The .vmx file is the configuration file for a virtual machine in vSphere and contains information such as the virtual machine's name, guest OS, network settings, and disk configurations. By clicking on the .vmx file and selecting the "Register Virtual Machine" option, the administrator can register the virtual machine with vCenter Server and add it back to the inventory. This will make the virtual machine accessible from the vSphere Client and allow it to be managed and operated like any other virtual machine in the environment.

   Source: Adapted from community discussion — dinosan

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9. Question 29 · 99 in bank

   Select 2

   Which two characteristics describe vSphere HA? (Choose two.)

   • AWhen vCenter Server experiences downtime, vSphere HA restarts VMs on unaffected hosts.
   • BvSphere HA restarts VMs if their host becomes isolated in the management network.
   • CIn response to datastore accessibility failures, vSphere HA restarts VMs on unaffected hosts.
   • DvSphere HA performs load balancing across the hosts in a cluster to prevent resource contention.
   • EBy keeping a secondary VM running at all times, vSphere HA protects VMs from data loss.

   Show answer

   Answer: BC

   Explanation

   Disregard the previous answer, please!!!! The correct answers are B and C. B. vSphere HA restarts VMs if their host becomes isolated in the management network. This means that if the host that the virtual machine is running on becomes disconnected from the management network for any reason, vSphere HA can detect this and automatically restart the virtual machine on another host in the same cluster to ensure high availability. C. In response to datastore accessibility failures, vSphere HA restarts VMs on unaffected hosts. This means that if a datastore that a virtual machine is using becomes unavailable, vSphere HA can detect this and automatically restart the virtual machine on another host in the same cluster that has access to the required datastore.

   Source: Adapted from community discussion — dinosan

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10. Question 30 · 99 in bank

    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?

    • ARight click VM > Migrate > Change Compute resource > Select Host > Finish
    • BRight click VM > Power > Power Off > Actions > Compatibility > Upgrade VM Compatibility > OK
    • CPower Off VM > right click VM > Snapshots > Take Snapshot > OK
    • DRight click VM > Snapshots > Take Snapshot > Choose option to quiesce guest file system > OK

    Show answer

    Answer: D

    Explanation

    From the linked VMware docs: "A quiesce operation ensures that a snapshot disk represents a consistent state of the guest file systems." Answer is D.

    Source: Adapted from community discussion — throwaway_account

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1V0-21.20 practice, question 21. 99 questions available.