找考题网-背景图
单项选择题

命令show interface s0/0/0的哪项输出表明点到点链路远端使用的封装方法与本地路由器设置的封装不同?()

A.Serial 0/0/0is down,line protocol is down
B.Serial 0/0/0is up,line protocol is down
C.Serial 0/0/0is up,line protocol is up(looped)
D.Serial 0/0/0is up,line protocol is down(looped)