Your network consists of an Active Directory forest that contains only domain controllers that run
Windows Server 2003. You need to prepare the environment for the implementation of a new
Windows Server 2008 domain in the forest. What should you do?

A.
Run adprep /forestprep on the schema operations master.

B.
Run adprep /domainprep on the schema operations master.

C.
Run adprep /forestprep on the infrastructure operations master.

D.
Run adprep /domainprep on the infrastructure operations master.

Explanation:
To create a new Windows Server 2008 domain in the forest, you need to run adprep /forestprep on
the schema operations master. You can prepare the forest by running adprep /forestprep on the
server that holds the schema master operations master role (also known as flexible single master
operations or FSMO) to update the schema.
Installing an Additional Windows Server 2008 Domain Controller
http://technet2.microsoft.com/windowsserver2008/en/library/dc4dfacc-7771-4a31-8113-
6e57c090987b1033.mspx?mfr=true