5.0 Security Fundamentals

AAA, RADIUS & TACACS+ Practice Questions

Authentication, authorization, accounting, and the two AAA transport protocols.

Author-reviewed by LabFabric · 7 September 2026 · Report a content issue

One solved question, so you can see how these are marked

In the AAA framework, which function determines what an authenticated user is permitted to do?

Authorization

Authentication proves identity, authorization decides which commands or resources that identity may use, and accounting records what was actually done for billing and audit purposes.

Every question in the set below is marked like this. The answers stay hidden until you pick one.

Find related practice in the CCNA path