深夜成人在线,chinese国产一区二区,欧美精品乱码,日韩欧美在线视频免费观看,国产午夜不卡,日韩av影院在线,五月天婷婷国产精品

軟題庫 培訓課程
試卷年份2011年上半年
試題題型【單選題】
試題內容

TCP/IP communication protocol contains four layers. From bottom to top, the four layers are （  ）.
A．network interface layer, internet layer, transport layer and application layer
B．internet layer, network interface layer, transport layer and application layer
C．network interface layer, transport layer, network interface layer and application layer
D．application layer, transport layer, internet layer and network interface layer

查看答案

相關試題