How does a device use CSMA/CA technology to avoid collisions?
- It monitors the media and only begins to transmit when the media is free.
- It sends a notification before transmitting when the media is free.
- It uses a full-duplex channel for communication.
- It waits for a token before transmitting.
Explanation: In CSMA/CA, the device examines the media for the presence of a data signal. If the media is free, the device sends a notification across the media of its intent to use it. The device then sends the data. This method is used by 802.11 wireless networking technologies.
Exam with this question: Module 2.3.3 Data Link Layer Quiz
Please login or Register to submit your answer