MAC filtering
Course: AP® Cybersecurity Shows up in: Unit 3: Securing Networks
Allowing only devices with approved media access control (MAC) addresses to join a network or use a switch port.
Appears in the course and exam description (CED): 3.2.A.23.2.B.4
Why it matters in Unit 3
It keeps unauthorized devices off the network, best combined with user authentication.
Example
The lab Wi-Fi only accepts the 30 laptops on its approved list.
Learn it properly, with a checkpoint 3.2 Protecting Networks: Managerial Controls and Wireless Security