下列路由记录中最可靠的是（ ），最不可靠的是（ ）。
问题1选项
A.直连路由
B.静态路由
C.外部BGP
D.OSPF
问题2选项
A.直连路由
B.静态路由
C.外部BGP
D.OSPF
正确答案及解析
正确答案
解析
答案： A、C
一条路由比其他的路由拥有更高优先级的概念叫做管理距离AD。主要是比较不同路由协议有多条路径到达目的网络的参数，AD值越小，就表示这条路由可信度级别就越高。
华为的：直连路由：0；OSPF：10；静态路由：60；RIP：100、BGP：255。
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