CompTIA Security+ (SY0-501) — Question 281

A company wants to provide centralized authentication for its wireless system. The wireless authentication system must integrate with the directory back end.
Which of the following is a AAA solution that will provide the required wireless authentication?

Answer options

• A. TACACS+
• B. MSCHAPv2
• C. RADIUS
• D. LDAP

Correct answer: C

Explanation

The correct answer is RADIUS, as it is specifically designed for remote access and supports centralized authentication, making it suitable for wireless systems. TACACS+ is also a AAA protocol but is less commonly used for wireless authentication. MSCHAPv2 is an authentication protocol rather than a complete AAA solution, and LDAP is primarily used for directory services, not as a standalone authentication method.