You are the messaging engineer for your company. The company has a main office and four branch offices. Each office has 200 users.

You plan to deploy two Exchange Server 2007 clustered Mailbox servers in the main office. All users will access their mailboxes on the main office server.

You need to design a server capacity plan for the clustered Mailbox servers that meets the following requirements:

Reduce disk I/O for the disks that contain the Exchange databases.

Increase the number of transactions that can be stored in memory.

Improve recoverability of data if the database becomes corrupt.

Which three configurations should you recommend? (Each correct answer presents part of the solution.

Choose three.)