CompTIA Network+ (N10-009) — Question 131
A network engineer is configuring network ports in a public office. To increase security, the engineer wants the ports to allow network connections only after authentication. Which of the following security features should the engineer use?
Answer options
- A. Port security
- B. 802.1X
- C. MAC filtering
- D. Access control list
Correct answer: B
Explanation
The correct answer is B, 802.1X, as it specifically provides port-based network access control, requiring authentication before allowing network access. Options A (Port security) and C (MAC filtering) provide different levels of security but do not require user authentication. Option D (Access control list) is used for filtering traffic but does not handle user authentication for port access.