Your network contains an Active Directory forest named contoso.com. The forest contains two domains named
contoso.com and child.contoso.com. All domain controllers run Windows Server 2008. All forest-wide
operations master roles are in child.contoso.com.
An administrator successfully runs adprep.exe /forestprep from the Windows Server 2008 R2 Service Pack1
(SP1) installation media.
You plan to run adprep.exe /domainprep in each domain.
You need to ensure that you have the required user rights to run the command successfully in each domain.
Of which groups should you be a member? (Each correct answer presents part of the solution.
Choose two.)

A.
Administrators in child.contoso.com

B.
Enterprise Admins in contoso.com

C.
Domain Admins in child.contoso.com

D.
Domain Admins in contoso.com

E.
Administrators in contoso.com

F.
Schema Admins in contoso.com

Explanation:
Reference:
http://technet.microsoft.com/de-de/library/cc731728.aspx
adprep /domainprep
Prepares a domain for the introduction of a domain controller that runs Windows Server 2008. You run this
command after the forestprep command finishes and after the changes replicate to all the domain controllers in
the forest.
Run this command in each domain where you plan to add a domain controller that runs Windows Server 2008.
You must run this command on the domain controller that holds the infrastructure operations master role for the
domain. You must be a member of the Domain Admins group to run this command.