You have an internal network and a perimeter network. On the perimeter network, you deploy two Exchange Server 2013 servers that have the Edge Transport server role installed. On the internal network, you deploy five Exchange Servers that have the Mailbox server role and the Client Access server role installed.
You need to recommend a solution to ensure that email messages are received by the organization if the Edge Transport server fails. The solution must ensure that the server is load balanced.
What is the best recommendation to achieve the goal? More than one answer choice may achieve the goal. Select the BEST answer.
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