A、幀(framE.,數(shù)據(jù)包(packet),段(segment),比特流(bit) B、段(segment),數(shù)據(jù)包(packet),幀(framE.,比特流(bit) C、比特流(bit),幀(framE.,數(shù)據(jù)包(packet),段(segment) D、數(shù)據(jù)包(packet),段(segment),幀(framE.,比特流(bit)
A、ROM B、NVROM C、RAM D、Hard-DISK
A、網(wǎng)調(diào)接入網(wǎng)核心路由器 B、省調(diào)1平面路由器 C、地調(diào)1平面路由器 D、地調(diào)備調(diào)路由器