You are the Exchange administrator for your company. The network currently consists of a two-node Exchange Server 2003 active/passive cluster.
Three hundred HTTP client computers connect to the Exchange servers by using SSL.
Users report that the response time of their Microsoft Outlook Web Access screen refreshes is unacceptably slow.
You add two more servers to the existing Exchange environment.
You need to ensure that your HTTP client computers have redundancy and acceptable client response times.
Which two actions should you perform? (Each correct answer presents part of the solution, choose two.)

A.
Join the new servers to the existing cluster.

B.
Select the option to configure the new servers as front-end servers.

C.
Configure the new servers so that they use Network Load Balancing.

D.
Create an Exchange System Attendant cluster resource for each front-end server on the existing cluster.

Explanation:

You do not need to map front end servers to backend servers.
Front End servers can be load balanced, the back end is seamless