Answer is A : you need a subnet for the heartbeat interfaces
B : a vSphere cluster is not even necessary for VCHA
C: VCHA is possible whatever is the size of the vCenter
D: VCHA needs a 10ms maximum latency between nodes
The answer is A because is the only answer that is a real requirement for vCenter HA configuration
Network connectivity:
-> vCenter HA network latency between Active, Passive, and Witness nodes must be less than 10 ms.
-> The vCenter HA network must be on a different subnet than the management network.
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.avail.doc/GUID-8FD87389-8CC9-4298-8B08-A1526FB44524.html
A as vcha needs it's own network separate to the management networ
upvoted 4 times
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