试题详情
- 单项选择题which command is used to enable CHAP authentication whit PAP as the fallback method on a serial interface?()
A、(config-if)#authentication ppp chap fallback ppp
B、(config-if)#authentication ppp chap pap
C、(config-if)#ppp authentication chap pap
D、(config-if)#ppp authentication chap fallback ppp
- C
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