单项选择题
A.Create a new Mailbox Recovery Database， restore a backup of the database file， and then run the Export-Mailbox cmdlet.
B.Create a new Mailbox Recovery Database， restore a backup of the database file， and then run the Restore-Mailbox cmdlet.
C.Create a database availability group （DAG）， restore a backup of the mailbox database file， and then run the Restore-Mailbox cmdlet.
D.Create a database availability group （DAG）， restore a backup of the mailbox database file， and then run the Export-Mailbox cmdlet.
单项选择题 YouhaveanExchangeServer2010organization.TheorganizationcontainstwoMailboxserversnamedServer1andServer2.Bothserversaremembersofadatabaseavailabilitygroup（DAG）namedDAG1.Server1andServer2haveacopyofamailboxdatabasenamedDB1.YouneedtoremovethecopyofDB1fromServer1.Whatshouldyoudo？（）
单项选择题 YouhaveanExchangeServer2010organization.TheorganizationcontainstwoMailboxserversnamedServer1andServer2.Bothserversaremembersofadatabaseavailabilitygroup（DAG）.AmailboxdatabasenamedDB1hasacopyonServer1andServer2.YouneedtoensurethatServer2waitsthreedaysbeforeapplyingtransactionlogfilesfromServer1toDB1.Whatshouldyourun？（）
单项选择题 Your Exchange Server 2010 organization contains the servers shown in the following table. Server1 and Server2 are members of a database availability group （DAG）.You shut down Server1.Some users report that they cannot access their mailboxes.You need to ensure that all users can connect to their mailboxes if a single Mailbox server becomes unavailable.What should you do？（）