CompTIA Network+ (N10-007) — Question 159

Which of the following BEST describes the RADIUS authentication service protocol?

Answer options

• A. A protocol that sends passwords to the authentication server
• B. A protocol that sends encrypted tickets from the authentication server
• C. A protocol that sends X.500 service requests to the authentication server
• D. A protocol that sends configuration information from the authentication server

Correct answer: D

Explanation

The correct answer is D because RADIUS is used primarily for providing centralized Authentication, Authorization, and Accounting (AAA) services, which includes sending configuration information. Options A, B, and C are incorrect as they do not accurately reflect the primary functions of the RADIUS protocol.