WhichstatementdescribestheAuthenticationProxyfeature?()
A.Alltrafficispermittedfromtheinboundtotheoutboundinterfaceuponsuccessfulauthenticationoftheuser.
B.AspecificaccessprofileisretrievedfromaTACACS+orRADIUSserverandappliedtoanIOSFirewallbasedonuserprovidedcredentials.
C.PriortorespondingtoaproxyARP，therouterwillprompttheuserforaloginandpasswordwhichareauthenticatedbasedontheconfiguredAAApolicy.
D.TheproxyservercapabilitiesoftheIOSFirewallareenableduponsuccessfulauthenticationoftheuser.
正确答案：参考B
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