单项选择题
A.Router(config-if)#no routingB.Router(config-if)#passive-interfaceC.Router(config-router)#passive-interface s0D.Router(config-router)#no routing updates
A.Router(config)#copy current to startingB.Router#copy starting to runningC.Router(config)#copy running-config startup-configD.Router#copy run start
A.enable secret password CiscoB.enable secret CiscoC.enable password Cisco