Which term describes the role of a Cisco switch in the 802.1X port-based access control?

• agent
• supplicant
• authenticator
• authentication server

Explanation: 802.1X port-based authentication defines specific roles for the devices in the network:
Client (Supplicant) – The device that requests access to LAN and switch services
Switch (Authenticator) – Controls physical access to the network based on the authentication status of the client
Authentication server – Performs the actual authentication of the client

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