Your network contains an active directory domain named Contoso.com. The domain contains a server named Server1 that runs windows Server 2016 R2 and has
the Hyper-V server role installed. You have a virtual machine named VM1. VM1 has a snapshot. You need to modify the Snapshot File Location of VM1.
What should you do first?

A.
Copy the snapshot file

B.
Pause VM1

C.
Shut down VM1

D.
Delete the snapshot

Explanation:
Snapshot data files are stored as .avhd files. Taking multiple snapshots can quickly consume storage space. In the first release version of Hyper-V (KB950050) and
in Hyper-V in Windows Server 2008 Service Pack 2, snapshot, snapshot data files usually are located in the same folder as the virtual machine by default. In HyperV in Windows Server 2008 R2, the files usually are located in the same folder as the virtual hard disk. The following exceptions affect the location of the snapshot
data files: If the virtual machine was imported with snapshots, they are stored in their own folder. If the virtual machine has no snapshots and you configure the
virtual machine snapshot setting, all snapshots you take afterwards will be stored in the folder you specify.
Caution
Do not delete .avhd files directly from the storage location. Instead, use Hyper-V Manager to select the virtual machine, and then delete the snapshots from the
snapshot tree. Do not expand a virtual hard disk when it is used in a virtual machine that has snapshots. Doing so will make the snapshots unusable.
http://technet.microsoft.com/en-us/library/dd560637(v=ws.10).aspx