A technician needs to implement a system to handle both authentication and authorization. Which of the following meets this requirement?

WPA3 (Wi-Fi Protected Access 3) is a security standard for wireless networks, primarily focused on encryption and authentication for Wi-Fi access, not general system authentication and authorization.

MFA (Multi-Factor Authentication) is an authentication method requiring multiple verification factors, but it is not a standalone system for both authentication and authorization.

TACACS+ (Terminal Access Controller Access-Control System Plus) is a Cisco proprietary protocol that provides distinct authentication and authorization services, allowing granular control over what a user can do after authenticating. It encrypts the entire packet and uses TCP, making it a reliable solution for managing user access to network infrastructure.

OAuth 2.0 is an authorization framework allowing third-party applications limited access to an HTTP service, but it does not provide authentication itself and is not a complete AAA system.