Which protocol uses 802.1X authentication with a RADIUS server?

Which protocol uses 802.1X authentication with a RADIUS server?

• A. WEP
• B. WPA
• C. WPA2 Enterprise
• D. WPA3

Answer: (C)

802.1X with a RADIUS server is used to provide per-user authentication in enterprise WLANs. In this setup, the client (supplicant) proves its identity to the access point (the authenticator) using EAP, and the access point forwards the authentication requests to a RADIUS server, which verifies credentials against a directory. If authentication succeeds, the network grants access and derives session keys. WEP and WPA-Personal rely on a single shared pre-shared key and do not involve a central RADIUS server. The enterprise version of WPA—WPA2-Enterprise (and WPA3-Enterprise) tie in 802.1X with RADIUS to offer scalable, per-user authentication. So, the best match is the enterprise form of WPA.

802.1X with a RADIUS server is used to provide per-user authentication in enterprise WLANs. In this setup, the client (supplicant) proves its identity to the access point (the authenticator) using EAP, and the access point forwards the authentication requests to a RADIUS server, which verifies credentials against a directory. If authentication succeeds, the network grants access and derives session keys. WEP and WPA-Personal rely on a single shared pre-shared key and do not involve a central RADIUS server. The enterprise version of WPA—WPA2-Enterprise (and WPA3-Enterprise) tie in 802.1X with RADIUS to offer scalable, per-user authentication. So, the best match is the enterprise form of WPA.