Directory Services Restore Mode is used for all AD DS recovery operations, and requires you to log on as __________________

a. The domain administrator
b. A local administrator
c. A backup operator
d. An enterprise administrator

A. Directory Services Restore Mode (DSRM) is a special version of Safe Mode that takes the domain controller offline and makes it function as a standalone server. To use it, you must log on as a local administrator using the Directory Services Restore Mode password that you specified when you first installed the domain controller.