SecureShell(SS H)isacryptographicnetworkprotocolfor()remotelogi

SecureShell(SS H)isacryptographicnetworkprotocolfor()remoteloginandothersecurenetworkservicesoveran()network.Thestandard()portforSSHis22.Thebestknownexampleapplicationisforremotelogintocomputersystemsbyusers. SSHprovidesasecurechanneloveraninsecurednetworkina(请作答此空)architecture,connectinganSSHclientapplicationwithanSSHserver.Commonapplicationsincluderemotecommand-lineloginandremotecommandexecution,butanynetworkservicecanbesecuredwithSS H.Theprotocolspecificationdistinguishesbetweentwomajorversions,referredtoasSSH-1andSSH-2. Themostvisibleapplicationoftheprotocolisforaccesstoshellaccountson()operatingsystems,butitseessomelimiteduseonWindowsaswell.In2015,MicrosoftannouncedthattheywouldincludenativesupportforSSHinafuturerelease.

A.client-server

B.browser-server

C.connectionless

D.P2P

正确答案是A