单项选择题 YournetworkcontainsoneExchangeServer2010ServicePack1（SP1）ClientAccessservernamedServer1.YouhaveausernamedUser1.YouneedtolimitthesizeoftheattachmentsthatUser1candownloadbyusingWindowsMobile6.5devices.Whatshouldyoudofirst？（）

单项选择题 YouhaveahostedExchangeorganization.AllserversintheorganizationhaveExchangeServer2010ServicePack1（SP1）installed.YouneedtopreventausernamedUser1fromusingOutlookWebApp（OWA）toaccesshismailbox.Whatshouldyoudo？（）

单项选择题 YouhaveanExchangeorganization.AllserversintheorganizationhaveExchangeServer2010ServicePack1（SP1）installed.AllusershaveWindowsMobile6.5devicesthatconnecttotheorganizationbyusingExchangeActiveSync.AusernamedUser1reportsthatshelostherdeviceandsuccessfullyperformedaremotewipeofthedevice.User1laterreportsthatshelocatedherdevice.User1configuresthedevicetoconnecttoExchangeActiveSyncanddiscoversthattheconnectionfails.YouneedtoensurethatUser1canconnectherdevicebyusingExchangeActiveSync.Whatshouldyoudo？（）