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  1. Home
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  3. 5V0-21.21

VMware 5V0-21.21 Exam (page: 1)
VMware HCI Master Specialist
Updated on: 11-Nov-2025

Viewing Page 1 of 12
5V0-21.21 PDF 100 Questions

In a stretched vSAN cluster, how is Read Locality established after fail over to the secondary site?

  1. 100% of the reads comes from vSAN hosts on the local site
  2. 50% of the reads comes from vSAN hosts on the local site
  3. 100% of the reads comes from vSAN hosts on the remote site
  4. 50% of the reads comes from vSAN hosts on the remote site

Answer(s): A


Reference:

https://www.vmware.com/files/pdf/products/vsan/vmware-virtual-san-6.1-stretched-cluster-guide.pdf (45)



In a vSAN stretched cluster, which value must be set in the vSAN policy if there is no requirement for data mirroring across sites?

  1. SFTT = 0
  2. SFTT = 1
  3. PFTT = 1
  4. PFTT = 0

Answer(s): D

Explanation:

Primary level of failures to tolerate (PFTT). For stretched clusters, PFTT defines the number of site failures that a virtual machine object can tolerate. For a stretched cluster, only a value of 0 or 1 is supported.
Secondary level of failures to tolerate (SFTT). For stretched clusters, SFTT defines the number of additional host failures that the object can tolerate after the number of site failures defined by PFTT is reached. If PFTT = 1 and SFTT = 2, and one site is unavailable, then the cluster can tolerate two additional host failures.
The default value is 0, and the maximum value is 3.


Reference:

https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan-planning.doc/GUID-1BDC7194-67A7-4E7C-BF3A-3A0A32AEECA9.html



An architect needs to automate an infrastructure that supports VMware Horizon as well as VMware Tanzu. Which solution mandates the use of VMware vSAN?

  1. VMware Cloud Foundation
  2. VMware Horizon
  3. VMware Tanzu
  4. VMware vRealize Automation

Answer(s): A


Reference:

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



An administrator is setting up vSAN file services on a vSAN cluster.
Which two security policies on the distributed port groups are automatically enabled in the process? (Choose two.)

  1. Forged Transmits
  2. Promiscuous Mode
  3. DVFiltering
  4. Jumbo Frames
  5. MacLearning

Answer(s): A,E

Explanation:

MacLearning and Forged Transmits are enabled as part of the vSAN File Services enablement process for a provided DVS port group.


Reference:

https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan.doc/GUID-CA9CF043-9434-454E-86E7-DCA9AD9B0C09.html



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?

  1. Manually replace the Host Encryption Key (HEK) of each affected host.
  2. Restore the communication with the KMS server, and re-establish the trust relationship.
  3. Replace the caching device in each affected disk group.
  4. Run /etc/init.d/vsanvpd restart to rescan the VASA providers.

Answer(s): B


Reference:

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



Viewing Page 1 of 12



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