单项选择题 You have an Active Directory domain named contoso.com. You have an Exchange Server 2010 organization. You have a server named Server1 that runs Windows Server 2008 R2 and has the Exchange 2010 management tools and Microsoft Office Outlook 2010 installed. A support technician named User1 performs management tasks on Server1. From the Exchange Management Shell on Server1， User1 runs Export-Mailbox Identity User2@contoso.com PSTFolderPath E: \PSTFiles\User2.pst and receives the following error message： The term ®Expor-Mailbox¯ is not recognized as the name of a cmdlet， function， script， or operableprogram. Check the spelling of the name， or if a path was included， verify that the path is correct and try again. You need to ensure that User1 can successfully run the command.  What should you do（）？

单项选择题 YouworkasanExchangeAdministratorforTechWorldInc.ThecompanyhasaWindows2008ActiveDirectory-basedcontainsanExchangeServer2010organization.YouhavedeployedHubTransportserver，ClientAccessserver，UntiMailboxserverinthemessagingorganization.YouhavenotdeployedanyEdgeTransportserverinthemessagingcfollowingserverscanbeusedtoreceiveandsendmailtraffictotheInternet？（）

单项选择题 YouworkasanExchangeAdministratorforTechWorldInc.ThecompanyhasaWindows2008ActiveDirectory-basedcontainsanExchangeServer2003organization.ThemanagementinstructsyoutodeployExchangeServer2010iitopreparetheschemaanddomainfirst.Whichofthefollowingcommandsshouldyourunpriortoperformingthenpreparation？（）