RADIUS incorporates which of the following services?

Question

Options

• AAuthentication server and PIN codes.
• BAuthentication of clients and static passwords generation.
• CAuthentication of clients and dynamic passwords generation.
• DAuthentication server as well as support for Static and Dynamic passwords.

• A
  4% (1)
• B
  7% (2)
• C
  4% (1)
• D
  86% (24)

Explanation

RADIUS (Remote Authentication Dial-In User Service) is a networking protocol that bundles three core functions - Authentication, Authorization, and Accounting (AAA) - and critically supports both static and dynamic password mechanisms, making D the only complete and accurate description.

Why the distractors fail:

• A is wrong because "PIN codes" is not a defining feature of RADIUS; it conflates RADIUS with token-based systems like RSA SecurID.
• B is wrong because it excludes dynamic passwords - RADIUS explicitly supports one-time/dynamic passwords via integration with token servers.
• C is wrong because it excludes static passwords - RADIUS handles both, and omitting static passwords makes the description incomplete.

Memory tip: Think of RADIUS as the "all-inclusive" AAA hotel - it handles Authentication (who are you?), Authorization (what can you do?), and Accounting (what did you do?), and it doesn't discriminate between static or dynamic credentials at the door.

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