Which command is used to enable CHAP authentication, with PAP as the fallback method, on a serial interface?

A. Router(config-if)# ppp authentication chap fallback ppp

B. Router(config-if)# authentication ppp chap fallback ppp

C. Router(config-if)# ppp authentication chap pap

D. Router(config-if)# authentication ppp chap pap








 

Suggested Answer: C



This question is in CCNA 200-125 exam 
For getting CCNA Certificate


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