单项选择题
A.Defines permissions for remote machines contacting the local machine through BNU
B.Specifies dialer and modem types for uucp connections
C.Defines basic communication parameters
D.Assigns alternate or additional Systems， Devices and Dialers files
单项选择题 Whichofthefollowingcommandsgathersnetworkpacketstatistics？（）
单项选择题 Whichofthefollowingflowcontrolsettingsallowsresumptionofsuspendedoutputbyhittingthe"R"key？（）
单项选择题 AnAIXserverhas2networkinterfacesandthesystemadministratorwantstoenabletheusersonthelocallyconfigurednetworkinterfacetobeabletoconnecttosystemsconfiguredontheglobalnetworkinterface.Howisitaccomplished？（）