CCNA: Cisco Certified Network Associate — Question 273

Which technology prevents client devices from arbitrarily connecting to the network without state remediation?

Answer options

• A. 802.11n
• B. 802.1x
• C. MAC Authentication Bypass
• D. IP Source Guard

Correct answer: B

Explanation

The correct answer is B, 802.1x, as it provides port-based network access control, requiring devices to be authenticated before accessing the network. The other options either pertain to wireless standards (A), do not enforce authentication (C), or are used for preventing IP address spoofing (D), and do not specifically handle state remediation for client devices.