ABC Company is planning a point-to-multipoint outdoor 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 802.1X Authenticator?
In a point-to-multipoint outdoor bridge deployment using 802.1X/EAP for authentication, the role of the 802.1X Authenticator is typically assigned to the root bridge. The root bridge is responsible for facilitating communication between the non-root bridges (which act as supplicants) and the RADIUS server (which acts as the authentication server). This setup ensures that all non-root bridges authenticate through the root bridge, making the root bridge the key element in the authentication process.
D is the correct answer. 802.1X/EAP solution can also be used for bridge security, with the root bridge assuming the authenticator role and the non root bridges assuming the supplicant role. CWNA - 108, 6th edition, sybex, page 441
D is the correct answer, because you have to go through the authenticator (ROOT Brdige) towards the authentication server (RADIUS).
Should be B I believe