你可能感兴趣的试题
The traditional way of allocating a single channel among multiple competing users is to chop up its (1) by using one of the multiplexing schemes such as FDM (Frequency
Division Multiplexing). If there are N users, the bandwidth is divided into N equal-sized portions, with each user being assigned one portion. Since each user has a private frequency (2), there is no interference among users.When there is only a small and constant number of users, each of which has a steady stream or a he
Networks can be interconnected by different devices.In the physical layer, networks can be connected by (1) or hubs, which just move the bits from one network to an identical network. One layer up we find bridges and switches, which operate at data link layer. They can accept (2) , examine the MAC address, and forward the frames to a different network while doing minor protocol translation in the process. In the network layer, we have routers that can connect two netw
第50题: 以太网的最大帧长为1518字节,每个数据帧前面有8个字节的前导字段,帧间隔为9.6μs,快速以太网100 BASE-T发送两帧之间的最大间隔时间约为( ) μs。