单项选择题
Youhaveanenterprisesubordinatecertificationauthority（CA）.TheCAissuessmartcardlogoncertificates.Usersarerequiredtologontothedomainbyusingasmartcard.Yourcompany’scorporatesecuritypolicystatesthatwhenanemployeeresigns，hisabilitytologontothenetworkmustbeimmediatelyrevoked.Anemployeeresigns.Youneedtoimmediatelypreventtheemployeefromloggingontothedomain.Whatshouldyoudo（）A.Revoketheemployee’ssmartcardcertificate.B.Disabletheemployee’sActiveDirectoryaccount.C.Publishanewdeltacertificaterevocationlist（CRL）.D.Resetthepasswordfortheemployee’sActiveDirectoryaccount.
单项选择题 Yournetworkcontainsanenterpriserootcertificationauthority（CA）.YouneedtoensurethatacertificateissuedbytheCAisvalid.Whatshouldyoudo（）
