You have a Microsoft Internet Security and Accelerator (ISA) 2006 server that provides all Internet
access for your company. You have two Mailbox servers configured in a database availability group
(DAG), two Client Access servers, and two Hub Transport servers. You need to recommend changes
to the environment to ensure that users can access Outlook Web App (OWA) from the Internet if any
single server fails. What should you recommend?

A.
Configure a Client Access server array.

B.
Deploy a second ISA server and create an ISA server array.

C.
Implement Windows Network Load Balancing for the Client Access servers.

D.
Deploy two Edge Transport servers that are configured to use EdgeSync synchronization.

Explanation: