Part of the configuration files for routers testking1 and testking2 are displayed below:
If you were to enter the "show interface serial 0" command on router testking1,which of the following will be displayed?（）
- A、Serial 0 is down, line protocol is down
- B、Serial 0 is up, line protocol is up
- C、Open: IPCP, CDPCP
- D、LCP closed
- E、LCP open
正确答案:B,E
答案解析:有
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