EAP uses RADIUS for authentication.

• A. TRUE
• B. FALSE
• C. NOT ENOUGH INFORMATION
• D. CANNOT TELL

Answer: (B)

EAP is a framework that defines how credentials are conveyed for network access, supporting methods like EAP-TLS and PEAP. RADIUS is an AAA protocol that can carry EAP messages between a network access server and an authentication server, and it’s commonly used in 802.1X setups. Because EAP is independent and can be authenticated through different backends, it doesn’t inherently rely on RADIUS. In practice, when RADIUS is involved, it serves as the transport and decision point for the EAP conversation, but EAP itself isn’t bound to RADIUS and can operate with other backends like Diameter or a local database. So saying that EAP uses RADIUS for authentication overgeneralizes EAP’s role; EAP can exist without RADIUS, even though RADIUS is a very common partnership in many networks.