Part 3 Understand Monitor and Use the DNS Service - leveltrader.com

Windows XP Professional & Server 2003 Administration

Part 3 Understand Monitor and Use the DNS Service

You work as the network administrator at Certkiller .com. All servers on the
Certkiller .com network run Windows Server 2003 and all client computers run
Windows XP Professional. Certkiller .com has its headquarters in Chicago and a
branch office in Dallas. This exhibit below illustrates the company network:
Both the Chicago office and the Dallas office are configured as a separate domain
and each office has an Active Directory site configured. The Certkiller .com users
make use of many shared folders that are published in Active Directory.
Consequently the users, when working, need to query the Active Directory often.
However, the Certkiller .com helpdesk received complaints from the Dallas office
users that the directory searches have become unacceptably slow and their work is
negatively affected. You then receive instruction from the CIO to address the
problem that the Dallas office users are experiencing. You now need to take action
to improve the search response times for the Dallas users.
What should you do?

A. You should enable a domain controller in the Dallas office to host an additional global
catalog.
B. You should add a domain controller for the Chicago office to the Dallas office.
C. The value of the replication interval should be increased.
D. You should enable universal group membership caching in the Dallas office.
E. You should enable universal group membership caching in the Chicago office.

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Answer: A

Explanation: you should add an additional global catalog at the Dallas office. The global
catalog stores a replicated, read-only copy of all objects in the forest, including a partial
set of each object's attributes. Given that the company is quite large and the performance
of the directory searches has degraded, the best solution is to add another global catalog
and distribute the load across multiple global catalog servers.
Incorrect answers:
B
: You should not add a domain controller in the Dallas site for the Chicago office. When
a user searches for other users or printers from the start menu, that user is searching the
global catalog. Adding a domain controller from a remote domain can help when users
with accounts from the remote domain roam to the local domain and log in., but it does
not affect performance of directory searches.
C: There is no need to increase the replication interval. In this question there is no
indication that the new shared resources are causing the delays. There is however a need
to an additional global catalog based on the excessive amount of queries to the size of the
company.
D: There is no need to enable universal group membership caching in the Dallas office.
Universal group membership caching allows domain controllers in sites to contact remote
global catalogs during authentication and cache responses for future authentication.
Universal group membership caching does not affect directory search performance.
E: There is no need to enable universal group membership caching in the Chicago office.
Universal group membership caching allows domain controllers in sites to contact remote
global catalogs during authentication and cache responses for future authentication.
Universal group membership caching does not affect directory search performance.