Two routers are connected via serial interfaces, for which the link-protocol is PPP. The network administrator wishes to configure PPP authentication to improve security on this link. Which PPP authentication method provides a more secure solution?

Question

Quizplus · Accepted Answer

CHAP (Challenge Handshake Authentication Protocol) is more secure than PAP (Password Authentication Protocol) because it uses a three-way handshake and periodically verifies the identity of the peer using a challenge-response mechanism, which is more secure than PAP's simple password exchange.

Two Routers Are Connected Via Serial Interfaces, for Which the Link-Protocol