Your Exchange Server 2007 environment has a single Edge Transport server. You deploy an additional Edge Transport server. You need to ensure that inbound e-mail messages are distributed between the two Edge Transport servers. What are two possible ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)
A.
Configure a new transport rule on each of the Edge Transport servers.
B.
Connect both Edge Transport servers to the same switch. Run the Edge Transport server cloned configuration scripts.
C.
Configure both Edge Transport servers in a Network Load Balancing (NLB) cluster. Configure the public DNS MX and A records for the NLB cluster name and IP address.
D.
Configure a new DNS MX record for the new Edge Transport server with the same Mail Server Priority value as the existing MX record.
E.
Disable netmask ordering on your public DNS servers.