In configuring a VMware HA Cluster the System Administrator can configure Admission Control. There are two ophons: Prevene VMs from being powered on if they violate availability constraints, or Allow VMs to be powered on even if they violate availability constraints. If the System Administrator chooses the option Allow VMs to be powered on even if they violate availability constraints then which of the following apply in the event of an ESX Host failure (Choose Two)?

A.
Virtual machines can be powered on until the percentage of cluster resources reaches 25%

B.
Only Virtual machines with a high restart priority will be restarted on surviving ESX Hosts

C.
VMware HA restarts Virtual machines on surviving hosts with the most unreserved capacity

D.
VMware HA carmot guarantee that all VMs from a failed host wit be restarted

Explanation:
vSphere Availability Guide ESX 4.0 ESXi 4.0 vCenter Server 4.0, page 12 and 13.

Allow VMs to be powered on even if they violate availability constraints. Select this
option if you want the capability of powering on more virtual machines than the VMware
HA failover level can support. If you select this option and power on enough virtual
machines to violate failover, the cluster icon turns red and failover is no longer
guaranteed

You can configure VMware HA to tolerate a specified number of host failures. With the
Host Failures Cluster Tolerates admission control policy, VMware HA ensures that a
specified number of hosts can fail and sufficient resources remain in the cluster to fail
over all the virtual machines from those hosts.

In the event of a host failure, the virtual machines running on that host are failed over,
that is, restarted on the alternate hosts with the most available unreserved capacity (CPU
and memory.)