单项选择题
A.For each mailbox database， provide a database name that is unique within the organization.
B.For each mailbox database， provide a database name that is unique within the Mailbox server.
C.For each mailbox database file， provide a file name that is unique within the organization.
D.For each mailbox database file， provide a file name that is unique within the Mailbox server.
单项选择题 YouworkastheenterpriseexchangeadministratoratXxx.XxxisusingMicrosoftExchangeServer2003astheirmessagingsolution.YouhaveaddedanewservertothenetworkanddeployedExchangeServer2010onitwiththedefaultsettings.Whatcommandmustbeusedtochangethedefaulte-mailaddresspolicy？（）
多项选择题 YouworkastheenterpriseexchangeadministratoratXxx.TheXxxnetworkisrunninginaMicrosoftExchangeServer2010environment.ASMTPserverontheInternethasrejectedsomeemailsentfromXxx.Whatactionsmustyoutaketodeterminewhythishappened？（）
单项选择题 You have an Exchange Server 2010 server that has the Mailbox， Hub Transport， and Client Access server roles installed. You need to ensure that users can send and receive e-mail by using Windows Live Mail or Microsoft Outlook Express. What should you do on the server（）？