Your network contains a single Active Directory domain.
A domain controller named DC2 fails.
You need to remove DC2 from Active Directory.
Which two actions should you perform? (Each correctanswer presents part of the solution.
Choose two.)

A.
At the command prompt, run dcdiag.exe /fix.

B.
At the command prompt, run netdom.exe remove dc2.

C.
From Active Directory Sites and Services, delete DC2.

D.
From Active Directory Users and Computers, deleteDC2.

Explanation:
Reference:
http://technet.microsoft.com/en-us/library/cc816907.aspx
Clean Up Server Metadata
Metadata cleanup is a required procedure after a forced removal of Active Directory Domain Services (AD DS).
You perform metadata cleanup on a domain controllerin the domain of the domain controller that you forcibly
removed. Metadata cleanup removes data from AD DS that identifies a domain controller to the replication
system.
Clean up server metadata by using GUI tools
Clean up server metadata by using Active Directory Users and Computers
1. Open Active Directory Users and Computers: On theStart menu, point to Administrative Tools, and then
click Active Directory Users and Computers.
2. Expand the domain of the domain controller that was forcibly removed, and then click Domain Controllers.
3. In the details pane, right-click the computer object of the domain controller whose metadata you want to
clean up, and then click Delete.
Clean up server metadata by using Active Directory Sites and Services
1. Open Active Directory Sites and Services: On the Start menu, point to Administrative Tools, and thenclick
Active Directory Sites and Services
2. Expand the site of the domain controller that wasforcibly removed, expand Servers, expand the name of
the domain controller, right-click the NTDS Settings object, and then click Delete.