You need to set up PPP authentication for RouterA. The adjoining router is named RouterB, and both routers will have a matching password of cisco. Which commands will achieve this?
Answer Options
RouterA(config)#username RouterA password cisco RouterA(config)#interface serial 0/1/0 RouterA(config-if)#ppp authentication chap pap
RouterA(config)#username RouterB password cisco RouterA(config)#interface serial 0/1/0 RouterA(config-if)#ppp authentication chap pap
RouterA(config)#username RouterA cisco RouterA(config)#interface serial 0/1/0 RouterA(config-if)#ppp authentication chap pap
RouterA(config)#username RouterA password cisco RouterA(config)#interface serial 0/1/0 RouterA(config-if)#authentication chap pap
Correct Answer: B
Explanation
The first step is to set the username of RouterB to use for authentication via username RouterB password cisco. Then enter the interface, in this case using the interface serial 0/1/0 command, and configure authentication with the command ppp authentication chap pap. All of the other options are incorrect.