Your network consists of one Active Directory domain that contains domain controllers that run
Windows Server 2008. The relative identifier (RID) operations master role for the domain fails and
cannot be restored. You need to restore the RID master role on the network. What should you do?
A.
Run netdom query /d:contoso.com fsmo.
B.
From another domain controller, seize the RID operations master role.
C.
Force replication between all domain controllers, and then run the Server Manager.
D.
Force replication between all domain controllers, and then run the File Server Resource Manager
(FSRM).
Explanation:
To restore the RID master role on the network, you need to seize the RID operations master role
from another domain controller. If the Domain Controller performing as the RID Master goes down
or becomes inaccessible, Windows 2000 and above domain controllers will have no place to acquire
new RID pool assignments. Domain controllers running Windows 2000 and Windows Server 2003
have a shared RID pool. The RID operations master is responsible for maintaining a pool of RIDs to be
used by the domain controllers in its domain and for providing groups of RIDs to each domain
controller when necessary.
How Operations Masters Work / RID Allocation
http://technet2.microsoft.com/windowsserver/en/library/795229a5-8a74-4edb-a2f4-
d5794d31c2a71033.mspx?mfr=true