You are formulating the backup strategy for Active Directory Lightweight Directory Services
(AD LDS) to ensure that data and log files are backed up regularly. This will also ensure the
continued availability of data to applications and users in the event of a system failure.
Because you have limited media resources, you decided to backup only specific ADLDS
instance instead of taking backup of the entire volume.
What should you do to accomplish this task?

A.
Use Windows Server backup utility and enable checkbox to take only backup of database
and log files of AD LDS

B.
Use Dsdbutil.exe tool to create installation media that corresponds only to the ADLDS
instance

C.
Move AD LDS database and log files on a separate volume and use windows server
backup utility

D.
None of the above

Explanation:
http://technet.microsoft.com/en-us/library/cc730941.aspx
Backing up AD LDS instance data with Dsdbutil.exe
With the Dsdbutil.exe tool, you can create installation media that corresponds only to the AD
LDS instance that you want to back up, as opposed to backing up entire volumes that
contain the AD LDS instance.