Gary wants to implement EAP-based protocols for his wireless authentication and wants to ensure that he uses only versions that support Transport Layer Security (TLS). Which of the following EAP-based protocols does NOT support TLS?

Of these versions of Extensible Authentication Protocol (EAP), only Lightweight Extensible Authentication Protocol (LEAP) does not support TLS. EAP Tunneled Transport Layer Security (EAP-TTLS) actually extends TLS, but supports the underlying protocol. Protected Extensible Authentication Protocol (PEAP) encapsulates EAP within an encrypted TLS tunnel.