In the CSMA/CD protocol, when a station may transmit data?
A) Whenever it has something to send.
B) As soon as it finds that there is no other station transmitting.
C) As soon as a station is given an electronic token
D) As soon as it receives a "clear to send" signal.
E) As soon as it finishes the waiting of random amount of time calculated.

Question

Quizplus · Accepted Answer

In CSMA/CD protocol, a station may transmit data as soon as it finds that there is no other station transmitting. Before transmitting, the station listens to the network and if it detects any signal, it waits for a random amount of time and listens again. If the network is idle, the station can transmit its data. If two stations transmit at the same time, a collision occurs and they both stop transmitting and wait for a random amount of time before trying again.

In the CSMA/CD Protocol, When a Station May Transmit Data