计算机网络-第5章 5.1-链路层概述-同步电大进度

迈不过友情╰ 2023-01-15 05:57 138阅读 0赞

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关于链路层的说法错误的是（）。

*  A.链路层将数据报封装成数据帧
 *  **B.所有的链路层协议都可以提供可靠交付服务**
 *  C.链路层的主体部分是在网络适配器中实现的
 *  D.位于网络适配器核心的是链路层控制器，该控制器通常是一个实现了许多链路层服务的专用芯片

### 媒体访问控制 ###

**当多个结点共享单个广播链路时，MAC协议可以怎么控制多个结点的帧传输？**

采用分布式算法决定结点如何共享信道，即决策结点何时可以传输数据

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