CompTIA Security+ (SY0-501) — Question 41

Joe, a security administrator, needs to extend the organization's remote access functionality to be used by staff while travelling. Joe needs to maintain separate access control functionalities for internal, external, and VOIP services. Which of the following represents the BEST access technology for Joe to use?

Answer options

• A. RADIUS
• B. TACACS+
• C. Diameter
• D. Kerberos

Correct answer: B

Explanation

TACACS+ is the best choice for Joe as it provides flexible, granular control over access and can handle distinct access requirements for different services, including internal, external, and VOIP. While RADIUS also offers remote access, it does not provide the same level of detailed control. Diameter is an evolution of RADIUS but is less widely implemented, and Kerberos is primarily for authentication rather than access control management.