单项选择题 YouworkasanExchangeAdministratorforUniComInc.ThecompanyhasaWindows2008ActiveDirectory-basedcontainsanExchangeServer2010organization.ThenameofyourcompanyisrecentlychangedtoTechWorldIncthatwhenevertheysende-mailstouc.com，theyarebouncedback.However，whentheysendane-mailtoTechWorld.Whichofthefollowingactionswillyouperformtoresolvetheissue？（）

单项选择题 YouworkasanExchangeAdministratorforTechWorldInc.ThecompanyhasaWindows2008ActiveDirectory-basedcontainsanExchangeServer2010organization.Thereare150mailboxesinthemessagingorganization，whichardatabasenamedMailboxDatabase.Youhavesetthestoragequotalimitto200MBforallmailboxesinthedatabase.Whenthelimitofamailboxreaches180MB，thecorrespondingusergetsawarningmessage.Afterreachingthelitosendandreceiveanye-mail.Themanagerofyourcompany，JohnSmith，asksyoutochangethestoragelimitforWhichofthefollowingcommandswillyouenterintheExchangeManagementShelltoaccomplishthetask？（）

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（）？