单选题
下列属于广域网拓扑结构的是（）。
发布日期：2020-12-11
树形结构
集中式结构
总线形结构
环形结构
试题解析
总线形结构
总线形结构网络是将各个结点用一根总线相连，网络中所有的结点都通过总线进行信息传输，任何一个精点的信息都可以沿着总线向两个方向传输，并被总线中任何一个结点所接收。在总线形中，f 为数据通信必经的总戏的负载量是有限度的，这是由通信介质本身的物理性能所决定的。因此在总线形网络中，总线的长度有一定的限制一条总线也只能连接定教量的结点。
树形结构
树形结构是一层次的嵌套结构。一个树形结构的外层和内层有相似的结构，所以这种结构多可以递归的表示。经典数据结构中的各种树状图是一种典型的树形结构：一棵树可以简单的表示为根，左子树，右子树。左子树和右子树又有自己的子树。
- 中文名
- 树形结构
- 关系
- 一对多
- 结构
- 非线性结构
- 外文名
- Tree Structure
- 节点
- 可以是多个
环形结构
环形结构主要应用于令牌网中，在这种网络结构中各设备是直接通过电缆来串接的，最后形成一个闭环，整个网络发送的信息就是在这个环中传递，通常把这类网络称之为“令牌环网”。
- 中文名
- 环形结构
- 别名
- 令牌环网
- 定义
- 通过电缆串接形成闭环来传递信息
- 外文名
- Token Ring NetWork
- 应用
- 主要应用于令牌网中
- 特点
- 五个
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