思科认证2022考试试题解析(2AB)

1. [单选题]路由器“全局模式”的提示符为（）

A. >
C. (config)
D. (config-router)

2. [单选题]路由表中，某条路由的“路由代码为D”，则表明该路由为（）

A. 直连路由
B. 静态路由
C. IGRP路由
D. EIGRP路由

3. [单选题]A Ezonexam technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command.In which OSI layer is the problem most likely occurring?

A. Physical
B. Data link
C. Network layer
D. Transport layer
E. Application layer

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