AAA is a management framework, which protocol is more commonly used to achieve?

Question

Options

• ARADIUS
• BCAPWAP
• C802.11a/b/g/n
• D802.1X

• A
  78% (40)
• B
  14% (7)
• C
  6% (3)
• D
  2% (1)

Explanation

RADIUS (Remote Authentication Dial-In User Service) is the protocol purpose-built to implement the AAA framework, meaning it handles Authentication (who are you?), Authorization (what are you allowed to do?), and Accounting (what did you do?) in a unified server-based system, making it the standard answer for "AAA protocol" on networking exams.

CAPWAP (option B) is a tunneling protocol used to manage wireless access points from a central controller - it has nothing to do with AAA. Options C (802.11a/b/g/n) are simply Wi-Fi physical-layer standards describing wireless transmission speeds and frequencies, not security frameworks. Option D, 802.1X, is a common distractor because it does involve authentication, but it is a port-based access control standard that acts as the "front door" mechanism - it often relies on RADIUS as the backend AAA server to do the actual credential verification.

Memory tip: RADIUS spells out its purpose in its name - Remote Authentication Dial-In User Service - so when you see AAA, think of RADIUS as the server that actually runs the AAA engine behind the scenes.

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