What is true about HA Agent VMs?
A.
They are restarted on surviving nodes in the event of an HA failover.
B.
They have a 1-to-l association with Client VMs.
C.
They are tied to a specific ESXi host.
D.
They can be vMotion migrated in a DRS cluster.
Explanation:
* If a host stops unexpectedly, VMware HA does not start an ESX agent virtual machine on another host.
ESX agent virtual machine …….
When ESXi put into the HA Cluster, a agent is installed on each ESXi server in a cluster that communicate the state of ESXi server to the master ESXi server. Agent is like a process like other processes in ESXi server. HA Cluster just protect the VMs, not the process hosted by ESXi Server
Actually, this blog states the opposite:
http://blogs.vmware.com/vsphere/2012/03/agent-vms.html
By “tagging” this virtual machine as an agent VM we ensure that this virtual machine gets powered on first in the case of a host failure. We do this to ensure the service is available before all other VMs start.
This is the current order which HA uses in case of a host failure and restarts need to occur:
■Agent virtual machines
■FT secondary virtual machines
■Virtual Machines configured with a restart priority of high,
■Virtual Machines configured with a medium restart priority
■Virtual Machines configured with a low restart priority