A vSphere HA cluster with four hosts has admission control configured to tolerate one host failure.
Which statement is true if a fifth host is added?
A.
CPU and Memory capacity will be set to 50%.
B.
CPU and Memory capacity will be set to 30%.
C.
CPU and Memory capacity will be set to 25%.
D.
CPU and Memory capacity will be set to 20%.
D
D = 20% Reservation per Hosts for one host failure
D, 100/5=20
20% = 1/5
So I think this might be more of a question as to if it will automatically balance the reservation per host in your cluster when you add the 5 host. In this case, where you have configured it to tolerate one host failure it will automatically adjust. If you have manually set it to 25% before adding the 5 host to your cluster, it will not adjust.
Would say C
When one host is down the rest have to takeover VMs. So with 20% and 4 hosts remaining we have only 4×20 = 80% of host available resources. With 25% with one failed host all will be OK, because remaining 4 have 4×25 = 100% of “host” available resources