You are a messaging professional. Your company has deployed a single Microsoft Active Directory domain. The default Active Directory site configuration has not been modified. The company has a main office and four branch offices that are connected by 256-Kbps WAN network connections.

The company has two Microsoft Windows Server 2003 domain controllers in each office. One of the domain controllers in each office is a global catalog server. The company has deployed two Microsoft Exchange 2000 Server computers in each office. All the Exchange 2000 Server computers are in the same routing group.

The company plans to deploy Microsoft Exchange Server 2007 computers.

You need to ensure that the Active Directory site is configured for Exchange Server 2007 messaging routing.

What should you do to ensure that the Active Directory site is configured for Exchange Server 2007 messaging routing?

A.
Request the Active Directory design team to configure a separate Active Directory site for each office.

B.
Request the Active Directory design team to configure a new site dedicated to the Exchange Server 2007
computers at the main office.

C.
Request the Exchange administrators to modify the Exchange 2000 Server organization to create routing
groups for each office.

D.
Request the Active Directory design team to deploy an additional domain controller and a global catalog
server at the main office.