Cisco Certified Network Professional 2026 – 400 Free Practice Questions to Pass the Exam

The acronym AAA in network security stands for Authentication, Authorization, and Accounting. Each of these components plays a crucial role in managing and securing access to network resources.

Authentication is the first step, where users are verified to ensure they are who they claim to be. This process can involve various methods such as passwords, biometrics, or digital certificates.

Authorization follows authentication and determines what resources a user is allowed to access and what actions they can perform within those resources. This ensures that users have the appropriate permissions assigned based on their identities.

Finally, Accounting refers to the tracking of what users do while accessing the network. This includes logging user activities such as login times, accessed resources, and changes made. Accounting information is crucial for auditing and compliance, enabling organizations to monitor usage patterns and potentially identify any unauthorized or suspicious activities.

The other choices do not accurately represent standard terminologies or the complete framework provided by AAA in network security. Therefore, Authentication, Authorization, and Accounting is the correct answer.