Your company has two main offices and 10 branch offices. Each office is configured as a separate Active
Directory site.
The main offices sites are named Site1 and Site2. Each office connects to Site1 and Site2 by using a WAN
link. Each site contains a domain controller that runs Windows Server 2008.
You are redesigning the Active Directory infrastructure.
You plan to implement domain controllers that run Windows Server 2012 and decommission all of the
domain controllers that run Windows Server 2008.
You need to recommend a placement plan for the Windows Server 2012 domain controllers to meet the
following requirements:
Ensure that users can log on to the domain if a domain controller or a
WAN link fails.
Minimize the number of domain controllers implemented.
What should you include in the recommendation? (Each correct answer presents part of the solution.
Choose all that apply.)
A.
Read-only domain controllers (RODCs) in the branch office sites
B.
A writable domain controller in Site1
C.
A writable domain controller in Site2
D.
Writable domain controllers in the branch office sites
Explanation:
Writeable domain controllers in Site1 and Site2 are enough as we should minimize the number of
domain controllers.
Incorrect:
Not A, not D Writeable domain controllers are not needed to authenticate users at the branch offices, as
each branch office connects to both Site1 and Site2.
I don’t know that I agree with the given answer.
“Ensure that the users can log onto the domain if a domain controller or WAN link fails.”
If the WAN link fails then they won’t be able to authenticate to sites 1 or 2. I know you have to minimize the number of DC’s deployed, but in this case I would say “D” is the answer.
The wording of the question isn’t specific enough.
You can either read it as, each Branch Office has only 1 WAN link that is able to connect to both Site 1 and Site 2. If that’s the case, you would need a DC in each Branch Office.
OR
Each Branch Office has 2 WAN links. One link connects to Site 1, and the other connects to Site 2. In that case, the answer is correct. You only need DCs in both main offices.