Are you studying for the CCENT or CCNA certifications?

Skillset can help you prepare! Sign up for your free Skillset account and take the first steps towards your certification.

Upgrade Account

Refer to the exhibit. Router "R1" and "R2" are connected through their serial interfaces. For some reason their serial interfaces remain in an up/down state. What can be the issue?

The "ppp pap sent-username" command must indicate the peer end username.

Passwords from username and pap sent-username must match.

Router R1 must have a username other than R2 and the same for R2.

The command "ppp authentication pap" must be followed by the keyword chap.

Explanation

Directory

Skillset helps you pass your certification exam.

Contributions and Interactions
Practice Questions

Study thousands of practice questions that organized by skills and ranked by difficulty.

Contributions and Interactions
Personalized Training

Create a tailored training plan based on the knowledge you already possess.

Training Video Selector
Exam Readiness

Know when you’re ready for the high-stakes exam. Have the confidence that you will pass on your first attempt.

Get A Free Skillset Account