Your network contains two subnets named Subnet1 and Subnet2. Subnet1 contains all company
servers. Subnet2 contains all client computers. Subnet1 and Subnet2 are separated by a firewall.
Some client computers connect by using Outlook Any where and some client computers connect by
using MAP1. You plan to deploy the Exchange Server 2010 servers shown in the following table.

You need to ensure that users can access their mailboxes and public folders by using Microsoft
Office Outlook. What should you configure on the firewall?

A.
Open TCP ports, 80, 443, 135 and 1024 to 65535 from the client subnet to Server3. Open TCP port
25 to Server3.

B.
Open TCP ports 80, 135 and 1024 to 65535 from the client subnet to Server1. Open TCP port 25 to
Server2.

C.
Open TCP ports 80 and 443 from the client subnet to Server3. Open TCP port 1024 to 65535 from
the client subnet to Server1.

D.
Open TCP ports 441, 135, and 1024 to 65535 from the client subnet to Server1. Open TCP ports
135 and 1024 to 65535 from the subnet to server 3