What is the effect on NSX Edge virtual machines when NSX Edge high availability is configured but vSphere HA is NOT configured?
A. The active-standby NSX Edge pair will survive one failure. However, the virtual machines must reside on the same host to prevent NSX Edge availability from being compromised.
B. The active-standby NSX Edge HA pair will survive multiple failures.
C. The active-standby NSX Edge HA pair will survive one failure. However, if another failure happens before the second Edge appliance is restored,
NSX Edge availability can be compromised.
D. The active-standby NSX Edge HA pair will survive two failures. However, the virtual machines must reside on two different hosts.
C is correct
“If vSphere HA is not leveraged, the active-standby NSX Edge HA pair will survive one fail-over. However, if another fail-over happens before the second HA pair was restored, NSX Edge availability can be compromised.”
https://docs.vmware.com/en/VMware-NSX-Data-Center-for-vSphere/6.2/com.vmware.nsx.admin.doc/GUID-6C4F0C33-C6DD-432B-AA91-10AD6B449125.html