You have an Exchange Server 2010 organization. You design a deployment of multiple Mailbox servers. 
Your companys Service Level Agreement （SLA） states that servers must support 1，000 concurrentconnections to mailboxes while maintaining an RPC latency of less than 20 milliseconds. 
You need to verify that your design meets the requirements of the SLA before you deploy servers in theproduction environment.
Which tool should you use？（）

You have an Exchange Server 2010 organization. 
You have a global security group named Legal that contains all the members of your companys legaldepartment. 
The companys security policy states that the Legal group must be able to search all mailboxes for e-mailmessages that contain specific keywords. 
You need to recommend a solution for the organization that complies with the security policy. 
What should you include in the solution？（）