IPsec,alsoknownastheinternetProtocol(),definesthearchitectureforsecurityservicesforIPnetworktrafficIPsecdescribestheframeworkforprovidingsecurityatheIPlayer,aswellasthesuiteofprotocolsdesignedtoprovidethatsecurity:through_()_andencryptionofIPnetworkpackets.IPeccanbeused10protectnetworkdata,forexample,bysettingupcircuitsusingIPsec(),inwhichalldatabeingsentbetweentwoendpointsisencrypted,aswithaVirtual(请作答此空)Networkconnection;forencryptingapplicationlayerdata;andforprovidingsecurityforrouterssendingroutingdataacrossthepublicinternet.InternettrafficcanalsobesecuredfromhosttohostwithouttheuseofIPsec,forexamplebyencryptionatthe()layerwithHTTPSecure(TTPS)oranthetransportlayerwittheTransportLayerSecurity(TLS)protocol.
A.pubic]
B.private]
C.personal
D.proper
正确答案是B