单项选择题 Your company has a main office and a branch office.The branch office administrators are the only members of a custom management role group.The role group is configured to allow members to manage recipients. You notice that the branch office administrators can manage recipients in both offices.You need to ensure that the branch office administrators can manage recipients in the branch office only. What should you do？（）

单项选择题 You have an Exchange Server 2010 organization that contains 20 Mailbox servers. You plan to create 10 mailbox databases on each Mailbox server.You need to create a naming convention for all mailbox databases. What should you include in your naming convention？（）

单项选择题 You have an Exchange organization.The Exchange servers in the organization are configured as shown in the following table. You deploy a new Exchange Server 2010 Client Access server named Server4 and successfully update the required DNS records for Server4.You need to ensure that all users on Server3 can successfully access their mailboxes by Using Exchange ActiveSync.What should you do？（）