VMware Updated 2V0-21.23 Exam Questions and Answers by cassius

https://core.vmware.com/resource/vmware-vsan-design-guide#:~:text=Summary%20of%20Network%20Design%20Considerations,are%20recommended%20for%20best%20performance .

The administrator should take these three steps to perform an update to vSphere clusters that are running vSAN:

• Configure vSphere Lifecycle Manager with an image for the cluster, which allows the administrator to specify the desired ESXi version and firmware for the hosts in the cluster.
• Register the vendor hardware management system as a vCenter Server extension, which allows the administrator to update the firmware on the hosts using vSphere Lifecycle Manager. The vendor hardware management system can also provide the firmware updates to vSphere Lifecycle Manager, so there is no need to download them from the vendor website separately.
• Run a hardware compatibility check using vSphere Lifecycle Manager, which verifies that the new software and firmware versions are compatible with the vSAN Hardware Compatibility List.

The task that should be completed prior to checking the compliance with an existing host profile is to attach the host profile to the new host, which allows applying the configuration template of the reference host to the new host.

References: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.hostprofiles.doc/GUID-0E5BF330-A765-4CDB-A97C-1D8C26260E5A.html https://www.nakivo.com/blog/how-to-create-and-set-up-vmware-vsphere-host-profiles/

Deleting App-LibTemplate (3) will remove the changes that are no longer needed and revert to the previous version of the template.

References: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vm_admin.doc/GUID-9A5093A5-C54F-4502-941B-3F9C0F573A39.html

https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vm_admin.doc/GUID-D69B0279-CC9B-495B-9CA3-AE975AF9C865.html

If the latest VM template contains changes that are no longer needed, the administrator should revert to the previous version of the template1.

Here are the steps to revert to a previous version of a template1:

• Navigate to the Versioning tab of the VM template.
• From the vertical timeline, navigate to the previous state of the VM template.
• Click the horizontal ellipsis icon (⋮), and select Revert to This Version.
• The Revert to Version dialog box opens. Enter a reason for the revert operation and click Revert.

So, in this case, the correct answer is: B. Revert to App-LibTemplate (2)

This will make App-LibTemplate (2) the current VM template1. Please note that this operation will not delete App-LibTemplate (3), it will simply make App-LibTemplate (2) the current version1.