You have a server named Server1 that runs Windows Server 2012 R2.
Server1 fails.
You identify that the master boot record (MBR) is corrupt.
You need to repair the MBR.
Which tool should you use?

A.
Bcdedit

B.
Bcdboot

C.
Bootrec

D.
Fixmbr

Explanation:
A) BCDEdit is a command-line tool for managing BCD stores. It can be used for a variety of
purposes, including creating new stores, modifying existing stores, adding boot menu
options, and so on. BCDEdit serves essentially the same purpose as Bootcfg.exe on earlier
versions of Windows

B) The BCDboot tool is a command-line tool that enables you to manage system partition files
C) Bootrec.exe tool to troubleshoot “Bootmgr Is Missing” issue. The /ScanOs option scans
all disks for installations that are compatible with Windows Vista or Windows 7. Additionally,
this option displays the entries that are currently not in the BCD store. Use this option when
there are Windows Vista or Windows 7 installations that the Boot Manager menu does not
list.
D) Repairs the master boot record of the boot disk. The fixmbr command is only available
when you are using the Recovery Console. Fixmbr option in Server 2008 and 2012 is a
bootrec option
http://technet.microsoft.com/en-us/library/cc709667(v=ws.10).aspx
http://technet.microsoft.com/en-us/library/dd744347(v=ws.10).aspx
http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/enus/bootcons_fixmbr.mspx?mfr=true
http://www.youtube.com/watch?v=kFU8kngy6O0
http://social.technet.microsoft.com/Forums/en-US/winservergen/thread/bbf4f440-50ce-4ea2-a3eaa96dc2500352