Câu 15: CWSP-205: Certified Wireless Security Professional (CWSP)

Given: During 802.1X/LEAP authentication, the username is passed across the wireless medium in clear text. From a security perspective, why is this significant?

1. A. The username is needed for Personal Access Credential (PAC) and X.509 certificate validation.
2. B. The username is an input to the LEAP challenge/response hash that is exploited, so the username must be known to conduct authentication cracking. — đáp án hiện tại
3. C. 4-Way Handshake nonces are based on the username in WPA and WPA2 authentication.
4. D. The username can be looked up in a dictionary file that lists common username/password combinations.