Your network contains a single Active Directory domain that has two sites named Site1 and Site2. Site1 has two domain controllers named DC1 and DC2.
Site2 has two domain controllers named DC3 and DC4.
DC3 fails.
You discover that replication no longer occurs between the sites.
You verify the connectivity between DC4 and the domain controllers in Site1. On DC4, you run repadmin.exe /kcc.
Replication between the sites continues to fail.
You need to ensure that Active Directory data replicates between the sites.
What should you do?
A. From Active Directory Sites and Services, configure the NTDS Site Settings of Site2.
B. From Active Directory Sites and Services, configure DC3 so it is not a preferred bridgehead server.
C. From Active Directory Users and Computers, configure the NTDS settings of DC4.
D. From Active Directory Users and Computers, configure the location settings of DC4.
Correct Answer: B
Explanation/Reference:
Same question as D/Q37.
By modifying the properties of DC3 we can remove the preferred bridgehead status of DC3.
Reference 1:
MCTS 70-640 Cert Guide: Windows Server 2008 Active Directory, Configuring (Pearson IT Certification, 2010)
pages 193, 194
Bridgehead Servers
A bridgehead server is the domain controller designated by each site’s KCC to take control of intersite replication. The bridgehead server receives information replicated from other sites and replicates it to its site’s other domain controllers. It ensures that the greatest portion of replication occurs within sites rather than between them.
In most cases, the KCC automatically decides which domain controller acts as the bridgehead server. However, you can use Active Directory Sites and Services to specify which domain controller will be the preferred bridgehead server by using the following steps:
1. In Active Directory Sites and Services, expand the site in which you want to specify the preferred bridgehead server.
2. Expand the Servers folder to locate the desired server, right-click it, and then choose Properties.
3. From the list labeled Transports available for intersite data transfer, select the protocol(s) for which you want to designate this server as a preferred bridgehead server and then click Add.
Reference 2:
MS Press – Self-Paced Training Kit (Exam 70-640) (2nd Edition, December 14 2012)
pages 589, 590
Preferred Bridgehead Servers
(…)
It’s important to understand that if you have specified one or more bridgehead servers and none of the bridgeheads is available, no other server is automatically selected, and replication does not occur for the site even if there are servers that could act as bridgehead servers.
