A.網(wǎng)絡(luò)互聯(lián)B.將計(jì)算機(jī)連接到通信介質(zhì)上C.實(shí)現(xiàn)數(shù)據(jù)傳輸D.進(jìn)行電信號(hào)匹配
A.中繼器B.網(wǎng)卡C.交換機(jī)D.路由器
A.VoIPB.媒體網(wǎng)關(guān)C.接入網(wǎng)關(guān)D.中繼網(wǎng)關(guān)