下面4种路由中，哪一种路由的子网掩码是255.255.255.255 （ ）。
- A.远程网络路由
- B.主机路由
- C.默认路由
- D.静态路由
正确答案及解析
正确答案
解析
因特网所有的分组转发都是基于目的主机所在的网络，但在大多数情况下都允许有这样的特例，即对特定的目的主机指明一个路由。这种路由就叫做特定主机路由。
当路由中的目标地址子网掩码是255.255.255.255时，即为主机路由。可以作为结论直接记忆
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