题目内容

在使用 CIDR 网络协议之后，路由表的项目由“网络前缀”和“下一跳地址”组成。网络前缀越长，则 IP 地址快包含的主机地址数就越少，路由选择就变成了从匹配结果中查找具有最长网络前缀的路由的过程，这就是_______

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