DSA Factory
Curriculum
Computer networks

The data link layer

About 7 steps, from the first idea to a mastery test.

  1. Stage 0Detecting and fixing errorsFree
    1. 1Parity and checksums12 min
    2. 2Cyclic redundancy check14 min
    3. 3Hamming codes: fixing a bit14 min
  2. Stage 1Flow control and reliabilityFree
    1. 1Stop-and-wait and why it is slow13 min
    2. 2Sliding windows: go-back-N and selective repeat15 min
  3. Stage 2Flow controlComing soon
  4. Stage 3Sharing the wireFree
    1. 1Ethernet and CSMA/CD14 min
    2. 2ARP and how switches learn13 min
  5. Stage 4Sharing the wireComing soon
Start freeTry a step first