Module
Link Layer: Ethernet, Switching, and Multiple Access
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About
Framing, error detection, CSMA/CD and Ethernet, switches vs. hubs, self-learning, VLANs, ARP, and introduction to wireless (CSMA/CA, WiFi basics).
Goal
Explain Ethernet frame handling and switch forwarding tables; contrast random access protocols; describe ARP resolution and basic WiFi MAC differences from wired Ethernet.
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