Your network contains an Active Directory domain named adatum.com. The domain contains a
server named Servers that runs windows Server 2008 R2 Service Pack 1 (SP1). Server5 contains a
mirrored volume named Volume1. You need to replace one of the disks in Volume1. Which Diskpart
command should you run first?

A.
Active

B.
Add

C.
Assign

D.
Attach vdisk

E.
Attributes

F.
automount

G.
Break

H.
Repair

I.
Compact vdisk

J.
Retain
K.
Create
L.
Detach vdisk
M.
Expand vdisk
N.
Extend
O.
Filesystems
P.
Format
Q.
GPT
R.
List
S.
Merge vdisk

T.
Offline
U.
Online
V.
Recover
W.
Remove
X.
Rescan

Explanation:
Break
Breaks the mirrored volume with focus into two simple volumes. Syntax:
Break disk=<n> [nokeep] [noerr]
http://technet.microsoft.com/en-us/library/cc772575(v=ws.10)