CHAPTER 16. Configuring PPP and CHAP
The CCNA certification exam will test a candidate's ability to install, configure, operate, and troubleshoot medium-size routed and switched networks, as well as implement and verify connections to remote sites in a wide area network (WAN). Because so many connections around the world rely on modems, cable networks, DSL, T1s and so on, it's no wonder that the first level of Cisco certification testing would cover two of today's most widely used protocols and technologies: Point-to-Point Protocol (PPP) and Challenge Handshake Authentication Protocol (CHAP).
Most Cisco gear supports such WAN protocols as Integrated Services Digital Network (ISDN), Asynchronous Transfer Mode (ATM), Frame Relay, High ...

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