Describe Extensible Authentication Protocol (EAP) and explain where it is used.

What will be an ideal response?

EAP was developed to create a single standard to allow two devices to authenticate. Despite the name, EAP is not a protocol in the classic sense, but rather it is a PPP wrapper that EAP-compliant applications can use to accept one of many types of authentication. Although EAP is a general purpose authentication wrapper, its only substantial use is in wireless networks.