Which acronym represents the process of verifying user identity in network security?

The correct answer is based on the acronym AAA, which stands for Authentication, Authorization, and Accounting. In the context of network security, authentication is the first step where a user's identity is verified. This involves confirming the credentials of users, such as usernames and passwords, biometrics, or tokens, to ensure that they are who they claim to be before granting further access.

Once authentication is completed, authorization determines what resources or operations the authenticated user is permitted to access or conduct. Finally, accounting tracks the actions of users for auditing and reporting purposes. Therefore, AAA is essential in establishing a secure process for ensuring that only authorized users gain access to networks and systems, making it the primary acronym related to verifying user identity in network security.

The other acronyms play important roles in security but focus on different aspects. Multi-Factor Authentication (MFA) is specifically about using more than one method of verifying identity, which is part of the authentication process but does not encompass the entire scope of AAA. A Virtual Private Network (VPN) is related to creating secure connections over the internet, while an Intrusion Prevention System (IPS) focuses on detecting and preventing network threats. These functions are important but do not directly address the overall process of user identity verification in