單項(xiàng)選擇題
A.S0/3/0 is down，line protocol is down B.S0/3/0 is up，line protocol is down C.S0/3/0 is up，line protocol is up D.S0/3/0 is administratively down，line protocol is down
A.S0/3/0 is down，line protocol is down B.S0/3/0 is up，line protocol is down C.S0/3/0 is up，line protoco li sup D.S0/3/0 is administratively down，line protocol is down
路由器配置模式的提示符是（）。
A.A B.B C.C D.D
A.exit B.enable C.ping D.reload
A.endB.config tC.resetD.enable
A.0.0.0.1 B.0.0.0.3 C.0.0.0.31 D.0.0.0.255
A.255.255.0.0 B.255.255.255.0 C.255.255.255.224 D.255.255.255.252
A.!!！ B..... C.UUU D.***
A.down B.up C.looped D.reload
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