单项选择题
A.Instruct the user to perform a hardware reset of the device.
B.You should perform a Set-ActiveSyncDeviceAccessRule
C.Instruct the user to change her password
D.Make the shell command Clear-ActiveSyncDevice -Identity User1
单项选择题 YouneedtocopytheconfigurationofanEdgeTransportServer.YouruntheExport-edgeconfig.ps1script.Whatotheractionshouldyouperform？（）
单项选择题 You have a server that runs Windows Server 2008 R2. You plan to install Exchange Server 2010 on the server. You need to install the Exchange Server 2010 prerequisites for the Unified Messaging （UM）， Mailbox， Client Access， and Hub Transport server roles. What should you run（）？
单项选择题 Youneedtoblockmessagesfromsendersthatdonotcomplysenderpolicyframework（SPF）.Whatdoyouneedtoimplement？（）