Your network contains an Active Directory domain named contoso.com. All domain controllers run
Windows Server 2003 Service Pack 2 (SP2). You have an Exchange Server 2003 organization. The
organization contains servers that run Exchange Server 2003 Service Pack 1 (SP1) and servers that
run Exchange 2000 Server Service Pack 4 (SP4). The organization contains three routing groups. You
need to prepare the Exchange organization for the installation of the first Exchange Server 2010 SP1
server. The solution must not affect message flow between the Exchange servers. What should you
do? (Choose all that apply.)

A.
Move all of the Exchange Server 2003 servers to a single administrative group.

B.
Suppress link state updates.

C.
Perform an in-place upgrade of the Exchange Server 2003 servers to Exchange Server 2007 SP2.

D.
Remove the Exchange 2000 Server servers.

E.
Install Exchange Server 2003 SP2.