Your company has a main office, ten regional datacenters. and 100 branch offices.
You are designing the site topology for an Active Directory forest named contoso.com.
The forest will contain the following servers:
In each regional datacenter and in the main office, a domain controller that runs Windows
Server 2012
In each branch office, a file server that runs Windows Server 2012
You have a shared folder that is accessed by using the path \\contoso.com\shares\software.
The folder will be replicated to a local file server in each branch office by using Distributed
File System (DFS) replication.
You need to recommend an Active Directory site design to meet the following requirements:
Ensure that users in the branch offices will be authenticated by a domain controller in the
closest regional datacenter.
Ensure that users automatically connect to the closest file server when they access
\\contoso.com\shares\software.
How many Active Directory sites should you recommend?
A.
1
B.
10
C.
11
D.
111
This question has a tricky comment, cause it says “Ensure that users in the branch offices will be authenticated by a domain controller in the closest regional datacenter”.
And by doing this, the answer would be: 10
Anyone agrees with me?
@Pedro
10 sites is wrong for sure. What about the headquarter? So it’s either 11 or 111.
We have 11 domain controllers which means we need 11 sites to get the most out of AD replication and to fullfil the requirement “Ensure that users in the branch offices will be authenticated by a domain controller in the closest regional datacenter.”
To fullfill the last requirement (DFS referrals) we need a site for each branch.
https://blogs.technet.microsoft.com/askds/2011/09/16/active-directory-site-topology-not-just-for-dcs/
This leads to answer D: 111
answer is C
Answer : 111
Requirement 1 > Ensure that users in the branch offices will be authenticated by a domain controller in the closest regional datacenter = Main Office + 10 Reg DC’s = 11
However… Requirement 2 > Ensure that users automatically connect to the closest file server when they access \\contoso.com\shares\software = Combination of DFS replication and Sites to identify local subnet and therefore local file server = 1 + 10 + 100 = 111
111 sites and 11 site links meet the requirements