YouhaveanActiveDirectoryforestthatrunsWindowsServer2008.YouhaveanExchangeServer2010organizationthatcontainsaHubTransportservernamedHubHub1fails.AnadministratordeletesthecomputeraccountandallotherreferencesofHub1fromActiveDirectory.YouneedtoreplacetheHubTransportserverroleonanewserver.Youmustachievethisgoalbyusingtheminimumamountofadministrativeeffort.Whatshouldyoudo？（）
A.Onthenewserver，runSetup\/MRecoverServer
B.Onthenewserver，runtheExchangeServerinstallationprogramandthenselecttheHubTransportrole
C.fromNtdsutil，performanauthoritativerestoreandthencreateamanagedserviceaccountnamedHub1
D.fromNtdsutil，performanauthoritativerestoreandthencreateaCNAMErecordforHub1thatpointstothenewserver
参考答案：B
