SecureShell(SS H)isacryptographicnetworkprotocolfor()remotelogi

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

A.secure

B.insecure

C.internet

D.internal

正确答案是B