WPA2-Enterprise authentication uses which mechanism?

• A. It uses per-user credentials via a RADIUS server.
• B. It uses a shared pre-shared key.
• C. It does not support 802.1X authentication.
• D. It is deprecated.

Answer: (A)

WPA2-Enterprise authenticates users individually by using 802.1X with a RADIUS server. In this setup the access point acts as the network gatekeeper (the authenticator), the client is the one trying to connect (the supplicant), and a RADIUS server handles the actual verification of credentials. This means each user provides their own username/password or certificate, which the RADIUS server validates—often talking to an identity provider—before granting access and distributing a unique session key. This per-user credential approach is what sets WPA2-Enterprise apart from a shared key system and supports centralized management and stronger security.

A shared pre-shared key corresponds to WPA2-Personal, which is not how Enterprise works. WPA2-Enterprise does support 802.1X, and it is not deprecated.