You are a messaging professional at A. Datum Corporation. Your company
uses a Microsoft Exchange Server 2003 messaging system and a Microsoft Exchange Server 2007
messaging system. All users at A. Datum use Microsoft Office Outlook 2007.

A. Datum has acquired a company named Contoso, Ltd. Contoso uses an Exchange Server 2003
messaging system. All the users at Contoso use Microsoft Office Outlook 2003.

You enable message routing between the two messaging systems.

You need to ensure that the users in both the companies can view the free/busy information of each other.

Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A.
Implement directory synchronization between the two messaging systems.

B.
Upgrade Outlook 2003 to Outlook 2007 on all the client computers at Contoso.

C.
On an Exchange Server 2003 public folder server at A. Datum, install and configure the Interorg
Replication tool.

D.
Deploy Outlook 2003 on the client computers at A. Datum.

E.
Implement an Exchange Server 2007 Client Access Server on the Contoso network.