Which of the following can be defined as a framework that supports multiple, optional authentication mechanisms for PPP, including cleartext passwords, challenge-response, and arbitrary dialog…

The correct answer is A. Extensible Authentication Protocol. RFC 2828 (Internet Security Glossary) defines the Extensible Authentication Protocol as a framework that supports multiple, optional authentication mechanisms for PPP, including cleartext passwords, challenge-response, and arbitrary dialog sequences. It is intended for use…

Submitted by chen.hong· Apr 18, 2026Network and Communications Security

Question

Which of the following can be defined as a framework that supports multiple, optional authentication mechanisms for PPP, including cleartext passwords, challenge-response, and arbitrary dialog sequences?

Options

AExtensible Authentication Protocol
BChallenge Handshake Authentication Protocol
CRemote Authentication Dial-In User Service
DMultilevel Authentication Protocol.

How the community answered

(45 responses)

A
87% (39)
B
9% (4)
C
2% (1)
D
2% (1)

Explanation

RFC 2828 (Internet Security Glossary) defines the Extensible Authentication Protocol as a framework that supports multiple, optional authentication mechanisms for PPP, including cleartext passwords, challenge-response, and arbitrary dialog sequences. It is intended for use primarily by a host or router that connects to a PPP network server via switched circuits or dial-up lines. The Remote Authentication Dial-In User Service (RADIUS) is defined as an Internet protocol for carrying dial-in user's authentication information and configuration information between a shared, centralized authentication server and a network access server that needs to authenticate the users of its network access ports. The other option is a distracter.

Topics

#Extensible Authentication Protocol (EAP)#PPP Authentication#Network Protocols#Authentication Mechanisms

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