An Active Directory database is installed on the C volume of a domain controller.
You need to move the Active Directory database to a new volume.
What should you do?

A.
Copy the ntds.dit file to the new volume by using the ROBOCOPY command.

B.
Move the ntds.dit file to the new volume by using Windows Explorer.

C.
Move the ntds.dit file to the new volume by running the Move-item command in Microsoft
Windows PowerShell.

D.
Move the ntds.dit file to the new volume by using the Files option in the Ntdsutil utility.

Explanation:
Answer) Move the ntds.dit file to the new volume by using the Files option in the Ntdsutil
utility.

http://technet.microsoft.com/en-us/library/cc816720%28v=ws.10%29.aspx
Move the Directory Database and Log Files to a Local Drive
You can use this procedure to move Active Directory database and log files to a local drive.
When you move the files to a folder on the local domain controller, you can move them
permanently or temporarily. Move the files to a temporary destination if you need to reformat
the original location, or move the files to a permanent location if you have additional disk
space. If you reformat the original drive, use the same procedure to move the files back after
the reformat is complete. Ntdsutil.exe updates the registry when you move files locally. Even
if you are moving the files only temporarily, use Ntdsutil.exe so that the registry is always
current.
On a domain controller that is running Windows Server 2008, you do not have to restart the
domain controller in Directory Services Restore Mode (DSRM) to move database files. You
can stop the Active Directory Domain
Services (AD DS) service and then restart the service after you move the files to their
permanent location.
To move the directory database and log files to a local drive:
..
7. At the ntdsutil prompt, type files, and then press ENTER.
8. To move the database file, at the file maintenance: prompt, use the following commands:
….
Further information:
http://servergeeks.wordpress.com/2013/01/01/moving-active-directory-database-and-logs/
Moving Active Directory Database and Logs
Step 1
Start the server in Directory Services Restore Mode
Windows Server 2003/2008 Directory Service opens its files in exclusive mode. This means
that the files cannot be managed while the server is operating as a domain controller. To
perform any files movement related activities using ntdsutil, we need to start the server in
Directory Services Restore Mode.
To start the server in Directory Services Restore mode, follow these steps:
Restart the computer.
After the BIOS information is displayed, press F8.
Use the DOWN ARROW to select Directory Services Restore Mode, and then press
ENTER.

Log on with your local administrative account and password. (Not Domain Administrative
account)

Note: using service control (SC.exe) you can verify quickly ntds services are running or
stopped. In command prompt type SC query ntds

Step 2
How to Move Active Directory Database and Logs
You can move the Ntds.dit data file to a new folder. If you do so, the registry is updated so
that Directory
Service uses the new location when you restart the server.
To move the data file to another folder, follow these steps:
Click Start, click Run, type ntdsutil in the Open box, and then press ENTER.

At the Ntdsutil command prompt, type activate instance ntds, and then press ENTER.

At the Ntdsutil command prompt, type files, and then press ENTER.

At the file maintenance command prompt, type move DB to <new location> (where new
location is an existing folder that you have created for this purpose) and then press ENTER.
In this case, the new location for database is C:\AD\Database Now

Now to move logs , at the file maintenance command prompt, type move logs to <new
location> (where new location is an existing folder that you have created for this purpose)
and then press ENTER. In our case, the new location for database is C:\AD\Logs

To quit file maintenance, type quit. Again to Ntdsutil, type quit to close the prompt
Restart the computer. AD database and Logs are moved successfully to new location.