Drag the descriptions on the left onto the components of 802.1X on the right.

Answer:

Authenticator – device that controls physical access to the network based on the authentication status Supplicant – software on the endpoint that communicates with EAP at layer 2 Authentication server – device that validates the identity of the endpoint and provides results to another device
Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_usr_8021x/configuration/xe3se/3850/sec-user-8021x-xe-3se-3850-book/config-ieee-802x-pba.html