What are three true statements about quiescing virtual machine snapshots?

What are three true statements about quiescing virtual machine snapshots? (Choose three)

A.
VMware Tools is not required for quiescing to be successful.

B.
The operation ensures that the snapshot includes a power state.

C.
The operations may alter the behavior of applications within the virtual machine.

D.
The operation ensures all pending disk I/O operations are written to disk.

E.
VMware Tools is required for quiescing to be successful.

Explanation:
See:
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1015180
Quiescing doesn’t allow you to capture a powerstate – the snapshot does that… Quiescing only affect applications in I/O within the VM.
This is why if you snapshot a VM that is running without VMware tools it will snapshot but can also break the VM. For example try snapshotting active directory VM without VMware tools. Eventually it will break it if won’t the first time.

Page 218 from vsphere-esxi-vcenter-server-50-virtual-machine-admin-guide.pdf

Prerequisites
* If you are taking a memory snapshot of a virtual machine that has multiple disks in different disk modes, verify that the virtual machine is powered off. For example, if you have a special purpose configuration that requires you to use an independent disk, you must power off the virtual machine before taking a snapshot.
* To capture the memory state of the virtual machine, verify that the virtual machine is powered on.
* To quiesce the virtual machine files, verify that the virtual machine is powered on and that VMware Tools is installed.
* Required privilege: Virtual machine.State. Create snapshot on the virtual machine.


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