单项选择题 You have an Exchange Server 2010 organization.  You need to plan a message hygiene solution that meets the following requirements： .Spoofing must be minimized .Open SMTP relays must be added to IP block lists automatically  What should you include in the plan？（）

单项选择题 You have an Exchange Server 2010 organization.  You have a group named Help Desk that contains all the help desk users in the organization.  You need to ensure that the Help Desk group can manage all the mailboxes and mail-enabled contacts in the organization.  The solution must minimize the number of permissions assigned to the Help Desk group.  Which management role should you assign to the Help Desk group？（）

单项选择题 You have an Exchange Server 2010 organization.  You plan to deploy a monitoring solution for Exchange Server 2010.  You need to recommend a solution to track the usage of ActiveSync clients and to analyze usage trends.  What should you include in the solution？（）