Physical & Data Link Layers

  1. Ethernet Standards: The evolution of wired networking from 10Mbps copper to multi-gigabit fiber optics.
  2. MAC Addressing: The 48-bit global identifier for hardware, including the OUI (Vendor) and NIC specific sections.
  3. CSMA/CD: The historical mechanism for detecting and handling collisions on a shared medium.
  4. Framing and Error Detection: How data is encapsulated with MAC headers and verified using the CRC checksum.
  5. Wi-Fi Standards: Wireless networking using IEEE 802.11 and the CSMA/CA protocol.

Module Chapters