Your network contains an Active Directory forest named fabrikam.com. The forest contains a DNS server named Server1. You need to configure Server1 to resolve single-label names. What should you do?
A.
Create a DNS zone named GlobalNames. Run dnscmd.exe and specify the Config parameter.
B.
Create a DNS zone named GlobalNames. Run dnscmd.exe and specify the CreateDirectoryPartition parameter.
C.
Create a DNS zone named RootNames. Run dnscmd.exe and specify the CreateDirectoryPartition parameter.
D.
Create a DNS zone named RootNames. Run dnscmd.exe and specify the Config parameter.
The answer is A
Look this:
http://policelli.com/blog/archive/2008/01/15/understanding-the-new-globalnames-zone-in-windows-server-2008/