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AuserconnectstothecompanysintranetserverviaaVPNconnectionfromasmalloffice/homeoffice(SOHO)usingthebroadbandservice.Oneday,theusercannotsuccessfullyconnecttotheVPNandreceivesanerrormessagethatstates"Usernameandpasswordareinvalidonthedomain."Whichofthefollowingshouldbedonetocorrectthisproblem?()
A.CallthecorporatehelpdesktohavetheVPNserverrebooted
B.Re-entertheusernameandpasswordintheVPNconnectionandreconnect
C.CallthebroadbandInternetprovidertoreplacetheSOHOrouterwithanewermodel
D.PingthecorporateVPNservertoensureitisonline
参考答案