A.interface is down,line protocol is down B.interface is down,line protocol is up C.interface is up,line protocol is down D.interface is up,line protocol is up
A.增加了沖突域的數(shù)量 B.降低了廣播域的數(shù)量 C.連接了網(wǎng)段1和網(wǎng)段2的廣播 D.隔斷了網(wǎng)段1和網(wǎng)段2之間的廣播
A.PC的網(wǎng)卡壞了 B.路由器的IP地址在其它子網(wǎng)內(nèi) C.路由器的VTY端口沒設(shè)密碼 D.PC的網(wǎng)關(guān)沒設(shè)