ABC Company is planning a point-to-multipoint bridge deployment with standalone (autonomous) 802.11 bridge units. 802.1X/EAP will be used for bridge authentication. A Linux-based RADIUS server will be used for authentication. What device in the bridge implementation acts as the 802.11X Authenticator?
In a point-to-multipoint bridge deployment using standalone 802.11 bridge units with 802.1X/EAP for authentication, the root bridge acts as the 802.1X Authenticator. The non-root bridges are considered supplicants, and the RADIUS server functions as the authentication server. The root bridge negotiates the authentication process between the non-root bridges and the RADIUS authentication server.
The answer is Root bridge Supplicant - Non rootbridge Authenticator - Root bridge Authentication server - RADIUS
c is the answer
The root bridge (AP) will be the Authenticator.