YouworkastheenterpriseexchangeadministratoratXxx.XxxisusingMicrosoftExchangeServer2010astheirmessagingsolution.YouhavereceivedinstructionsfromtheCIOtoenableAutodiscoverforInternetusersbycreatingaresourcerecordinDNS.Whatactionsmustyoutake?()
A. Youmustsetuprecipientfiltering.
B. YoumustsetupaHost(A).
C. YoumustuseaTXTrecord.
D. YoumustuseaPointer(PTR)record.
E. YoumustuseaMailexchange(MX)record.