Red Seal Electrician Practice
Signalling and communicationQuestion 139 of 1506

How does CSMA/CD (used by Ethernet) handle a collision?

  1. The node with the highest priority number always goes first, every time
  2. The master picks one node by name, and the others wait
  3. The token is passed to the next node in the sequence
  4. The colliding nodes wait a random delay, and the first one to finish tries again
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Correct answer: The colliding nodes wait a random delay, and the first one to finish tries again

CD means collision detection.

Source: Lessons in Electric Circuits IV: Digital (Kuphaldt), 14.7: Network Protocols

Practice signalling and communication

Questions last reviewed: 18 October 2026