单项选择题 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 concurrent connections 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 the production environment.  Which tool should you use？（）

单项选择题 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？（）

单项选择题 You have an Exchange Server 2003 organization.  Users access public folders by using Microsoft Office Outlook 2003 and Outlook Web App. You plan to transition the organization to Exchange Server 2010.  You need to ensure that users can access public folders after their mailboxes have been moved to Exchange Server 2010.  What should you do？（）