You have a server named Server1 that runs Windows Server 2012 R2. Server1 has the Hyper-V server role
installed. You have fixed-size VHD named Files.vhd.
You need to make the contents in Files.vhd available to several virtual machines. The solution must meet the
following requirements:
Ensure that if the contents are changed on any virtual machine, the changes are not reflected on the other
virtual machines.
Minimize the amount of disk space used.
What should you do?

A.
Create a fixed-size VHDX. Transfer the information from Files.vhd to the new VHDX file.

B.
Convert Files.vhd to a dynamically expanding VHD?

C.
Create a dynamically expanding VHDX. Transfer the information from Files.vhd to the new VHDX file.

D.
Create differencing VHDs that use Files.vhd as the parent disk.

Explanation:
Child disk for multiple VM’s with Files.vhd as parent. A differencing disk is associated with another virtual hard
disk that you select when you create the differencing disk. This means that the disk to which you want to
associate the differencing disk must exist first. This virtual hard disk is called the “parent” disk and the
differencing disk is the “child” disk.
The parent disk can be any type of virtual hard disk.
The differencing disk stores all changes that would otherwise be made to the parent disk if the differencing disk
was not being used. The differencing disk provides an ongoing way to save changes without altering the parent
disk. You can use the differencing disk to store changes indefinitely, as long as there is enough space on the
physical disk where the differencing disk is stored. The differencing disk expands dynamically as data is writtento it and can grow as large as the maximum size allocated for the parent disk when the parent disk was
created.