Red Seal Electrician Practice
Signalling and communicationQuestion 138 of 1506

In CSMA, what does a node do before it transmits?

  1. It waits for a token
  2. It waits for the master to name it
  3. It listens and waits until the network is silent
  4. It sends and hopes for no collision on the line
Show answer

Correct answer: It listens and waits until the network is silent

CSMA means Carrier Sense Multiple Access.

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

Practice signalling and communication

Questions last reviewed: 18 October 2026