Your network contains two Active Directory site. The sites connect to each other by using a WAN
link. You plan to deploy two Exchange Server 2010 Mailbox servers and two Client Access servers in
each site. Each site will contain a Client Access array. You need to recommend a solution to deploy
Hub Transport servers. The solution must meet the following requirements:
• Continue to deliver e-mail messages to users in other sites if a single Hun Transport server fails
• Support the planned Client Access array deployment
• Minimize the number of Exchange servers
What are two possible ways to achieve this goal? (Each answer presents a complete solution. Choose
two.)

A.
Add the Hub Transport server role to each Mailbox server.

B.
Add the Hub Transport server role to each Client Access server.

C.
Deploy two Hub Transport servers on two new servers in each site.

D.
Deploy one Hub Transport server on a new server and then install the SMTP service on each Client
Access server.

Explanation: