You have an Exchange organization. All servers in the organization have Exchange Server 2010 Service Pack 1 (SP1) installed. The Exchange organization contains two Hub Transport servers, two Client…

You have an Exchange organization. All servers in the organization have Exchange Server 2010 Service Pack 1 (SP1) installed. The Exchange organization contains two Hub Transport servers, two Client Access servers, and two Mailbox servers. All Exchange servers are located on the internal network. Your company plans to use Microsoft Exchange Hosted Services for message hygiene. You need to recommend changes to the Exchange organization to meet the following requirements:

• Ensure that the company can send e-mail messages if a single server

fails.

• Ensure that the company can receive e-mail messages if a single

server fails.

• Prevent Internet hosts from initiating connections directly to

servers on the internal network. Which of the following changes is the best recommendation? (More than one answer choice may achieve the goal. Select the BEST answer.)