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?

50% corresponds to a two-host cluster tolerating one failure (1/2), not a five-host cluster.

30% does not correspond to any standard 1/N host-failure calculation for a five-host cluster.

25% was the correct reservation with four hosts (1/4), but adding the fifth host changes the denominator and reduces the percentage to 20%.

When admission control uses the cluster resource percentage policy to tolerate one host failure, vSphere HA reserves 1/N of total cluster resources, where N is the number of hosts in the cluster. With five hosts, the calculation yields 1/5 = 20% for both CPU and memory capacity. Adding the fifth host causes vSphere HA to automatically recalculate and lower the reserved percentage from the previous 25% down to 20%.