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The VMware HCI Master Specialist (5V0-21.21)

Passing VMware VMware Certified Master Specialist - HCI 2021 exam ensures for the successful candidate a powerful array of professional and personal benefits. The first and the foremost benefit comes with a global recognition that validates your knowledge and skills, making possible your entry into any organization of your choice.

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5V0-21.21 Exam Dumps
  • Exam Code: 5V0-21.21
  • Vendor: VMware
  • Certifications: VMware Certified Master Specialist - HCI 2021
  • Exam Name: VMware HCI Master Specialist
  • Updated: Mar 25, 2026 Free Updates: 90 days Total Questions: 66 Try Free Demo

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VMware 5V0-21.21 Exam Domains Q&A

Certified instructors verify every question for 100% accuracy, providing detailed, step-by-step explanations for each.

Question 1 VMware 5V0-21.21
QUESTION DESCRIPTION:

Which statement accurately describes the result when proper VM Storage Policy Affinity Rules on a stretched vSAN cluster are set?

  • A.

    When a site is disconnected, the VM will lose access to its VMDK.

  • B.

    When a site is disconnected, the VM will continue to have access to its VMDK.

  • C.

    Bandwidth is unnecessarily sent across the inter-site link.

  • D.

    Proper policies result in higher inter-site bandwidth utilization.

Correct Answer & Rationale:

Answer: B

Explanation:

Setting proper VM/Host Group Rules and VM Storage Policy Affinity Rules are beneficial for several reasons Bandwidth is not unnecessarily sent across the inter-site link Lower inter-site bandwidth utilization In the situation where the alternate site is disconnected, the VM will continue to have access to its vmdk. from https://core.vmware.com/resource/vsan-stretched-cluster-guide#sec7341-sub5

Question 2 VMware 5V0-21.21
QUESTION DESCRIPTION:

An administrator has an absent capacity disk.

Which action, if any, should the administrator take to resolve the problem?

  • A.

    Wait, and vSAN will rebuild it.

  • B.

    Replace the faulty disk.

  • C.

    Replace the faulty host.

  • D.

    Verify the host is not isolated.

Correct Answer & Rationale:

Answer: B

Explanation:

The best action to take to resolve the problem is to replace the faulty disk, as stated in the VMware official guide: " Hosts can include a maximum of five disk groups [1] , each of which must have one flash cache device and one or more capacity devices [1] . In vSAN, each host can have a maximum of seven capacity devices, excluding the flash cache device [1] . The flash cache device is used to accelerate read and write operations [1] , while the capacity devices provide the raw storage capacity for the vSAN cluster. "

https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan-monitoring.doc/GUID-4E3390C1-6C50-49E5-AEB6-C9BC037979A1.html

Question 3 VMware 5V0-21.21
QUESTION DESCRIPTION:

An architect needs to automate an infrastructure that supports VMware Horizon as well as VMware Tanzu.

Which solution mandates the use of VMware vSAN?

  • A.

    VMware Cloud Foundation

  • B.

    VMware Horizon

  • C.

    VMware Tanzu

  • D.

    VMware vRealize Automation

Correct Answer & Rationale:

Answer: A

Explanation:

https://docs.vmware.com/en/VMware-Cloud-Foundation/3.10/vcf-deploy/GUID-E493608B-D4B6-4C98-96CA-5D2D723ACE55.html

[Reference: https://www.vmware.com/products/vrealize-automation.html, ]

Question 4 VMware 5V0-21.21
QUESTION DESCRIPTION:

An architect is designing for a production vSAN cluster, and the customer introduced these requirements related to File Services: A minimum of 12 files shares. 30TB NFS capacity to mount workload VMs.

What should be the architect’s recommendations?

  • A.

    Point out the risks regarding putting the hosts in maintenance mode in terms of FSVM.

  • B.

    Confirm on all of the requirements and move forward with the physical design.

  • C.

    Raise concerns regarding support when running VMs on an NFS share as risk.

  • D.

    Highlight the required number of nodes required for the vSAN cluster as a constraint.

Correct Answer & Rationale:

Answer: D

Question 5 VMware 5V0-21.21
QUESTION DESCRIPTION:

A vSAN policy has been configured with Erasure Coding on a vSAN stretched cluster.

Which RAID level and FTT setting have been specified?

  • A.

    SFTT with RAID1

  • B.

    PFTT with RAID1

  • C.

    PFTT with RAID5/6

  • D.

    SFTT with RAID5/6

Correct Answer & Rationale:

Answer: C

Explanation:

https://docs.vmware.com/en/VMware-Cloud-on-AWS/services/com.vmware.vsphere.vmc-aws-manage-data-center-vms.doc/GUID-EDBB551B-51B0-421B-9C44-6ECB66ED660B.html

Question 6 VMware 5V0-21.21
QUESTION DESCRIPTION:

An administrator notes that the Data-At-Rest Encryption keys have expired.

Which action is needed to resolve this situation?

  • A.

    Add a new Standard Key Provider at the vSAN cluster level

  • B.

    Generate new encryptions keys at the vSAN cluster level

  • C.

    Add an additional KMS at the vCenter server level

  • D.

    Generate new encryptions keys at the vCenter server level

Correct Answer & Rationale:

Answer: B

Explanation:

https://docs.vmware.com/en/VMware-vSphere/8.0/vsan-administration/GUID-15393A27-5F38-4814-94E0-ED37A7E65249.html

Question 7 VMware 5V0-21.21
QUESTION DESCRIPTION:

An administrator is setting up vSAN file services on a vSAN cluster but is unable to join the vSAN File Services to the domain.

Which two possible reasons could explain this failure? (Choose two.)

  • A.

    A read-only domain controller was being used.

  • B.

    The administrator did not pre-create a dedicated organizational unit in Active Directory.

  • C.

    The administrator wanted to register the file services to a sub-domain.

  • D.

    The administrator was using IP addresses from an IP pool.

  • E.

    The administrator was using pre-created computer objects for the file services in the Active Directory.

Correct Answer & Rationale:

Answer: A, C

Explanation:

https://docs.vmware.com/en/VMware-vSphere/8.0/vsan-administration/GUID-CA9CF043-9434-454E-86E7-DCA9AD9B0C09.html

Question 8 VMware 5V0-21.21
QUESTION DESCRIPTION:

Due to an update in their security requirements, an organization is no longer compliant because the metadata traffic between hosts in their vSAN cluster is not being encrypted.

Which step must be taken by the administrator to meet the new security requirements?

  • A.

    Enable vMotion encryption on the vSAN cluster.

  • B.

    Enable virtual machine encryption on the vSAN cluster.

  • C.

    Enable Data-At-Rest Encryption on the vSAN cluster.

  • D.

    Enable Data-In-Transit Encryption on the vSAN cluster.

Correct Answer & Rationale:

Answer: D

Explanation:

https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan.doc/GUID-10099331-92E7-41AF-BCAA-88DB4B4A4B7B.html

Question 9 VMware 5V0-21.21
QUESTION DESCRIPTION:

An administrator has noticed that a number of the virtual machines in the preferred site are showing as either failed or partitioned.

In which two ways would the administrator expect the virtual machines to respond? (Choose two.)

  • A.

    They will be disconnected.

  • B.

    They will be restarted in the secondary site.

  • C.

    They will be restarted at the preferred site.

  • D.

    They will be powered off.

  • E.

    They will be removed from inventory.

Correct Answer & Rationale:

Answer: B, D

Explanation:

https://core.vmware.com/resource/vsan-stretched-cluster-guide#site-failure-or-network-partitions

Question 10 VMware 5V0-21.21
QUESTION DESCRIPTION:

An administrator has been tasked to reboot a node in an encrypted vSAN cluster. The vSAN disk groups on that node become locked after rebooting the node.

Which step should be performed to exit the locked state?

  • A.

    Manually replace the Host Encryption Key (HEK) of each affected host.

  • B.

    Restore the communication with the KMS server, and re-establish the trust relationship.

  • C.

    Replace the caching device in each affected disk group.

  • D.

    Run /etc/init.d/vsanvpd restart to rescan the VASA providers.

Correct Answer & Rationale:

Answer: B

Explanation:

https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan-monitoring.doc/GUID-084B3888-499F-4CD0-8954-A149560B1534.html

[Reference: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.vsan-monitoring.doc/ GUID-084B3888-499F-4CD0-8954-A149560B1534.html, ]

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