1V0-21.20 practice questions 11–20

1. Question 11 · 99 in bank

   An administrator is tasked with evacuating a storage array because it has been replaced. Which feature meets this requirement?

   • AStorage vMotion
   • BvSphere vMotion
   • CProactive HA
   • DPredictive DRS

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   Answer: A

   Explanation

   The feature that meets the requirement of evacuating a storage array is Storage vMotion (Option A). Storage vMotion is a feature in VMware vSphere that allows administrators to move virtual machine disk files (VMDKs) from one storage location to another without any downtime. This is useful in situations where an existing storage array needs to be replaced, and all virtual machines need to be moved to a new storage location. Storage vMotion provides a convenient and efficient way to evacuate virtual machine storage while ensuring that the virtual machines continue to run without interruption.

   Source: Adapted from community discussion — dinosan

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2. Question 12 · 99 in bank

   Which object-based storage can be used to store virtual machines?

   • ANFS
   • BVMFS
   • CRDM
   • DvVols

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   Answer: D

   Explanation

   I asked ChatGPT: No, Virtual Volumes (vVols) is not an object-based storage technology. vVols is a storage management framework introduced by VMware that provides a more granular and policy-driven approach to storage in virtualized environments. It's designed to improve the integration between storage arrays and VMware vSphere. vVols works with traditional block or file-based storage systems, and it allows the virtual disk (VMDK) of a virtual machine to be treated as a separate logical volume on the storage array. This enables more flexibility in managing storage at the virtual machine level, rather than dealing with LUNs or volumes at the datastore level.

   Source: Adapted from community discussion — PabloCab

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3. Question 13 · 99 in bank

   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?

   • ASend SNMP traps
   • BRun a PowerCLI command
   • CRun script
   • DSend email notifications

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   Answer: C

   Explanation

   C. Run script is the alarm action that the administrator should use to run a batch file on a specific virtual machine. The "Run script" action allows the administrator to specify a script that will be executed on the target virtual machine when the alarm is triggered. The script could be a batch file, shell script, or other type of script that can be executed on the target operating system. The other options, A. Send SNMP traps, B. Run a PowerCLI command, and D. Send email notifications, do not directly allow the administrator to run a batch file on a virtual machine. Instead, they provide different methods for sending notifications or executing commands when an alarm is triggered.

   Source: Adapted from community discussion — dinosan

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4. Question 14 · 99 in bank

   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?

   • AVLAN
   • BDistributed Port Group
   • CNIC Teaming
   • DHost Proxy Switch

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   Answer: C

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5. Question 15 · 99 in bank

   Select 2

   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.)

   • AVirtual machine network adapters on the host are connected to the switch.
   • BThe ESXi host is connected to another VDS.
   • CVirtual machine network adapters are faulty.
   • DThe VDS is configured with ingress traffic shaping.
   • EThe ESXi host has VMkernel adapters assigned to the switch.

   Show answer

   Answer: AE

   Explanation

   The two reasons that could have caused the issue are: A. Virtual machine network adapters on the host are connected to the switch. If virtual machine network adapters on the host are still connected to the VDS, the administrator will not be able to remove the host from the switch. The virtual machine network adapters must be disconnected from the switch or moved to a different switch before the host can be removed. E. The ESXi host has VMkernel adapters assigned to the switch. If the ESXi host has VMkernel adapters assigned to the VDS, the administrator will not be able to remove the host from the switch. The VMkernel adapters must be removed from the switch or moved to a different switch before the host can be removed.

   Source: Adapted from community discussion — dinosan

   References

   • docs.vmware.com documentation

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6. Question 16 · 99 in bank

   What is the purpose of the VMware Tools balloon driver?

   • ATo provide a high-resolution display for the VM's console
   • BTo improve a VM's network performance
   • CTo provide fast and efficient communication between VMs
   • DTo improve a VM's memory management capabilities

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   Answer: D

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7. Question 17 · 99 in bank

   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?

   • ACluster-Level EVC
   • BvSphere High Availability
   • CPer-VM EVC
   • DvSphere vMotion

   Show answer

   Answer: C

   Explanation

   The feature that meets this requirement is (C) Per-VM Enhanced vMotion Compatibility (EVC). Per-VM EVC allows virtual machines to be placed on hosts with different CPU generations and still maintain compatibility by exposing a consistent set of CPU features to the virtual machine. This way, the company can upgrade the hosts to the new processor type, but keep the VMs running software XYZ on a compatible processor type. With Per-VM EVC, the company can leverage the new processor features for all VMs except for the VMs running software XYZ, as required.

   Source: Adapted from community discussion — dinosan

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8. Question 18 · 99 in bank

   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?

   • AvSAN
   • BvMotion
   • CProvisioning
   • DvSphere Replication

   Show answer

   Answer: C

   Explanation

   ANS is C, correct --> VMKernel Port: Provisioning TCP/IP Stack Supports the traffic for virtual machine cold migration, cloning, and snapshot migration.

   Source: Adapted from community discussion — vinc26730

   References

   • docs.vmware.com documentation

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9. Question 19 · 99 in bank

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

   • AvSphere Storage DRS
   • BEnhanced vMotion Compatibility (EVC)
   • CvSphere HA
   • DVMware Fault Tolerance

   Show answer

   Answer: B

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10. Question 20 · 99 in bank

    Refer to the exhibit:

    

    After the "Service 1.5" snapshot is deleted, which snapshot will be the current state for the virtual machine?

    • AService 2
    • BService 1
    • CPhoton-01
    • DService 1.5

    Show answer

    Answer: D

    Explanation

    Deleting a snapshot does not affect the current state of the virtual machine1. Therefore, if the “Service 1.5” snapshot is deleted, the current state of the virtual machine will remain the same. It will not revert to any of the other snapshots like “Service 2”, “Service 1”, or “Photon-01”. So, none of the options A, B, or C are correct. The current state of the virtual machine after deleting the “Service 1.5” snapshot will still be the state it was in at the time of the deletion. However, please note that you will not be able to return to the “Service 1.5” state once the snapshot is deleted.

    Source: Adapted from community discussion — MacDiesel1010

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1V0-21.20 practice, question 11. 99 questions available.