Configuring the Active Directory Infrastructure

These questions are based on 70-648 – TS: Upgrading Your MCSA on Windows Server 2003 to Windows Server 2008, Technology Specialist.


Objective: Configuring the Active Directory Infrastructure
Sub-Objective: Configure authentication


Single Answer, Multiple Choice


You are the network administrator for a company that has several branch offices across the U.S. All branch offices in the U.S. are connected to the company’s head office by using high-speed WAN link. The company ventures into the European region and opens two new branch offices there. These branch offices are connected to the company’s U.S. headquarters by using a 56 kbps network connection. You plan to enable universal group membership caching for the two branch office sites.


Which statement is NOT true for enabling universal group membership caching in both of the new branch offices?



  1. Enabling universal group membership caching will provide faster logon time for branch office users.
  2. Enabling universal group membership caching will require a considerable amount of hardware changes.
  3. Enabling universal group membership caching will reduce network bandwidth usage.
  4. Enabling universal group membership caching will not cause global catalog queries to port 3268 to be intercepted.

Answer:
B. Enabling universal group membership caching will require a considerable amount of hardware changes.


Tutorial:
It is NOT true that enabling universal group membership caching will require a considerable amount of hardware changes. Enabling universal group membership caching gathers the user information from the remote catalog server and stores it locally on the branch office domain controller. This user information that is stored locally does not require a lot of storage space. Therefore, to enable universal group membership caching, you do not require upgrading the existing hardware of domain controllers, which will probably be required when hosting a global catalog.


The option stating that enabling universal group membership caching will provide faster logon time for branch office users is true. Enabling universal group membership ensures efficient and faster user logon. Once the user information is stored locally on the branch office domain controllers, the authentication request is no longer sent to the remote global catalog located at the head office to obtain universal group membership information, ensuring faster logon time.


The option stating that enabling universal group membership caching will require minimum network bandwidth usage is true. Since, after enabling universal group membership caching, the user information is stored locally at the branch office, the branch office domain controllers will not require high network usage to log on branch office users to the domain. Moreover, when universal group membership caching is enabled and the WAN link between the branch office site and head office site is offline, then the branch office domain controller will be able to successfully log on users to the domain.


The option stating that enabling universal group membership caching will not will not cause global catalog queries to port 3268 to be intercepted is true. If an application in the branch office site is sending global catalog queries to port 3268, enabling universal group membership caching will not reduce the usage of the WAN link to resolve these queries. The only way to reduce bandwidth usage for applications sending queries to port 3268 is to host the global catalog in those sites.


Reference:
Windows Server TechCenter > Windows Server 2003 Technical Library > Windows Server 2003: Product Help > Windows Server 2003 Product Help > Active Directory > Active Directory Concepts > Understanding Active Directory > Understanding the Global Catalog > Global catalogs and sites

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