A.為了最優(yōu)化路徑的選擇 B.為了交換路由表 C.為了實(shí)現(xiàn)生成樹(shù)協(xié)議 D.為了在VLAN之間通訊
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