A security analyst has been asked to provide a triple A service (AAA) for both...

The AAA service, which stands for Authentication, Authorization, and Accounting, is essential for managing user access to network resources. When it comes to providing AAA services for both wireless and remote access network services in a non-proprietarymanner, RADIUS (Remote Authentication Dial-In User Service) is the most suitable technology.

RADIUS is an open standard protocol widely used for network access authentication and accounting. It is supported by a variety of network vendors and devices, making it a non-proprietary solution that can be easily integrated into different network environments. RADIUS provides a centralized way to authenticate users, authorize their access levels, and keep track of their activity on the network1.

TACACS+ is a Cisco proprietary protocol and therefore does not meet the requirement of avoiding proprietary solutions.

OAuth is a framework for authorization and is not typically used for network access control in the same way that RADIUS is.

MS Access Database is not a network authentication protocol and would not provide the necessary AAA services for network security.

References: The information provided here is based on the principles of AAA services as outlined in the BCS Foundation Certificate in Information Security Management Principles and supported by industry-standard practices for non-proprietary network security solutions.