what is 802 1x protocol? | 802.1x port based authentication | CCNA 200-301

In this video I will discuss about 802.1x protocol.
what is 802.1x Authentication and How it Works?
IEEE 802.1X is a standard port-based access control and authentication protocol. It is ideal for restricting unauthorized access through publicly available LAN devices, such as switches and wireless access points. There are three main components the Supplicant, Authenticator, and the Authentication Server (AS).