单项选择题
A.From the Exchange Management Shell， run Set-MailboxDatabase -DumpsterStatistics $true.
B.From the properties of the mailbox database， select the This database can be overwritten by a restore check box.
C.From the Exchange Management Shell， run the New-MailboxSearch cmdlet.
D.From the Exchange Management Shell， run the New-MailboxExportRequest cmdlet.
E.From the properties of the mailbox， enable single item recovery.
F.From the properties of the mailbox database， modify the Deletion Settings.
单项选择题 YouhaveanExchangeorganization.AllserversintheorganizationhaveExchangeServer2010ServicePack1（SP1）installed.Youneedtoensurethatyoucanrestoreamailboxdeletedfromamailboxdatabaseifthemailboxwasdeleteduptosixmonthsearlier.Thsolutionmustnotrequireadatabasebackup.Whatshouldyoudo？（）
单项选择题 YouhaveanExchangeorganization.AllserversintheorganizationhaveExchangeServer2010ServicePack1（SP1）installed.Theorganizationcontainsadatabaseavailabilitygroup（DAG）namedDAG1.DAG1containstwoMailboxserversnamedServer1andServer2.FivemailboxdatabasesarereplicatedinDAG1.YouneedtoinstallExchangerollupupdatesonServer1.Thesolutionmustnotpreventusersfromaccessingtheirmailboxes.Whatshouldyoudofirst？（）
单项选择题 YournetworkcontainstwoExchangeServer2010ServicePack1（SP1）Mailboxservers.Youcreateadatabaseavailabilitygroup（DAG）.YouneedtoinstallalloftheFailoverClusteringcomponentsontotheMailboxservers.Whatshouldyoudo？（）