Your company has one main office and 20 branch offices.
Each office is configured as an Active Directory site.
The network consists of one Active Directory domain.
All servers run Windows Server 2008 and all client computers run Windows Vista.
The main office contains three domain controllers.
You need to deploy one domain controller in each branch office to meet the following requirements:
– Authentication to a main office domain controller must only occur if a local domain controller fails.
– Client computers in the main office must not authenticate to a domain controller in a branch office.
– Client computers in a branch office must not authenticate to a domain controller in another branch office.
– Client computers in each branch office must attempt to authenticate to the domain controller at their local site first.
What should you do first?
A.
Associate the IP subnet of each branch office to the Active Directory site of the main office.
B.
Select the read-only domain controller (RODC) option and the Global Catalog option when deploying the branch office domain controllers.
C.
Create a Group Policy object (GPO) that applies to all branch office domain controllers and controls the registration of DNS service location (SRV) records.
D.
Configure only the main office domain controllers as global catalog servers. Enable Universal Group Membership Caching in the Active Directory site for each branch office.