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Your company has a main office and five branch offices. Each office contains servers that run Windows Server 2008 R2.
You need to prepare the environment for the installation of Active Directory domain controllers in the branch offices. The solution must meet the following requirements:
- Ensure that the minimum amount of replication traffic is sent between offices.
- Ensure that users always attempt to authenticate to a domain controller in their local office, unless it is unavailable.
You install the first domain controller on the network in the main office.
What should you do next?
A. Disable the Bridge all site links option.
B. Enable Universal Group Membership Caching.
C. Create a site link and a site link bridge for each office.
D. Create a subnet object and a site object for each office.
Correct Answer: D
Explanation/Reference:
Explanation:
To ensure that the minimum amount of replication traffic is sent between offices and that the users should always authenticate to their local domain controllers in their local office, unless the domain controller in their local offices is unavailable, you need to create a subnet object and a site object for each office.
You should create sites for all locations in which you plan to place domain controllers and create subnet objects in AD DS for every IP subnet and subnet mask associated with each location. Subnet objects are used to represent all the IP addresses within the site
A well-designed site topology helps an organization to optimize the ability of client computers to locate the nearest resources, such as domain controllers and Distributed File System (DFS) servers. This helps client computers to authenticate to their nearest domain controllers.
Domain controllers use site information to inform Active Directory clients about domain controllers present within the closest site as the client. The domain controller also informs the client whether the chosen domain controller is the closest one to it. By finding a domain controller in the same site, the client avoids communications over WAN links. If no domain controllers are located at the client site, a domain controller that has the lowest cost connections relative to other connected sites advertises itself in the site that does not have a domain controller. The domain controllers that are published in DNS are those from the closest site as defined by the site topology. This process ensures that every site has a preferred domain controller for authentication.
–data updates trigger replication, and the data is
Within sites, replication is optimized for speed
sent without the overhead required by data compression. Conversely, replication between sites is compressed to minimize the cost of transmission over wide area network (WAN) links. When replication occurs between sites, a single domain controller per domain at each site collects and stores the directory changes and communicates them at a scheduled time to a domain controller in another site.
Reference: Creating a Site Design Deciding which locations will become sites
http://technet2.microsoft.com/windowsserver2008/en/library/5ed8b9ca-e88a-4e06-a203- 83d37b54d9bb1033.mspx?mfr=true
Reference: Site Functions
www.certify-me.co.uk 94
Microsoft 70-647 Exam
http://technet2.microsoft.com/windowsserver2008/en/library/5ed8b9ca-e88a-4e06-a203- 83d37b54d9bb1033.mspx?mfr=true