After logging into the RtrB router, you issue the "show interface" command as displayed below:
After considering the effects of the command output illustrated in the exhibit above,which of the following protocols are operational on the serial link?（）
- A、PPP
- B、IP
- C、Compression
- D、IPX
- E、Multilink
- F、ATX
正确答案:A,B
答案解析:有
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