AAA stands for?

AAA stands for?

• A. Authentication, Authorization, and Accounting
• B. Authorization, Authentication, and Access
• C. Authentication, Access, and Accounting
• D. Authorization, Accounting, and Authentication

Answer: (A)

In information security, AAA refers to three coordinated functions that control access and monitor use: Authentication, Authorization, and Accounting. Authentication verifies who you are, typically through credentials or tokens. Once identity is confirmed, Authorization decides what you are allowed to do and what resources you may access. Accounting records what you did—what actions, when, and for how long—so there’s an audit trail for accountability, billing, and compliance. The option that lists Authentication, Authorization, and Accounting is the standard trio and captures the full flow: verify identity, grant appropriate rights, and log activity. The other options mix in terms like Access or swap the order, which don’t align with the established terminology.

In information security, AAA refers to three coordinated functions that control access and monitor use: Authentication, Authorization, and Accounting. Authentication verifies who you are, typically through credentials or tokens. Once identity is confirmed, Authorization decides what you are allowed to do and what resources you may access. Accounting records what you did—what actions, when, and for how long—so there’s an audit trail for accountability, billing, and compliance.

The option that lists Authentication, Authorization, and Accounting is the standard trio and captures the full flow: verify identity, grant appropriate rights, and log activity. The other options mix in terms like Access or swap the order, which don’t align with the established terminology.