You have an Exchange Server 2010 organization that contains two Client Access servers. You deploy
a Microsoft Internet Security and Acceleration (ISA) Server. You need to recommend a high
availability solution for the Client Access servers. The solution must meet the following
requirements:
• Ensure that Outlook Web App (OWA) connections are available if a single Client Access server fails
• Ensure that client access services are available if a single service fails on a Client Access server
What should you recommend?

A.
Deploy a hardware load balancer.

B.
Deploy Windows Network Load Balancing.

C.
Publish each Client Access server in a separate publishing rule.

D.
Publish both Client Access servers in a single publishing rule as a Web server farm.

Explanation: