单项选择题 Your network contains Exchange Server 2010 servers.  All users access their mailboxes by using Outlook Web App （OWA）. Your companys compliance policy states the following： .All e-mail messages that contain customer contracts must be stored for three years .Users must be able to classify e-mail messages that relate to customer contracts .Users must be able to move e-mail messages to any folder  You need to recommend a solution that supports the requirements of the compliance policy.  What should you recommend？（）

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？（）