单项选择题
A.Set-MailboxDatabaseCopy -Identity DB1\Server1 -ReplayLagTime 3.0：0：0
B.Set-MailboxDatabaseCopy -Identity DB1\Server1 -TruncationLagTime 3.0：0：0
C.Set-MailboxDatabaseCopy -Identity DB1\Server2 -ReplayLagTime 3.0：0：0
D.Set-MailboxDatabaseCopy -Identity DB1\Server2 -TruncationLagTime 3.0：0：0
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？（）
单项选择题 YouhaveanExchangeServer2010organizationthatcontainsadatabaseavailabilitygroup（DAG）namedDAG1.DAG1containstwoMailboxserversnamedServer1andServer2.YouneedtochangetheTCPportthatServer1andServer2usetosendtransactionlogfiles.Whatshouldyoudo？（）
单项选择题 YournetworkcontainstwoExchangeServer2010Mailboxservers.Youcreateadatabaseavailabilitygroup（DAG）.YouneedtoensurethattheExchangeserverscanreplicatemailboxdatabases.Whatshouldyoudo？（）