A.網(wǎng)絡(luò)接口層、網(wǎng)絡(luò)層、傳輸層和應(yīng)用層 B.網(wǎng)絡(luò)層、傳輸層和應(yīng)用層 C.傳輸層和應(yīng)用層 D.應(yīng)用層
A.物理層 B.數(shù)據(jù)鏈路層 C.網(wǎng)絡(luò)層 D.應(yīng)用層
A.IEEE802.2 B.IEEE802.3 C.IEEE802.4 D.IEEE802.5