A device on a network is ready to send a frame. What is the first thing that CSMA/CD logic does?

A) Sends a token out to instruct other devices not to send packets.

B) Sends a jamming signal out to prevent other hosts from sending packets.

C) Sends a discovery message out to find out if the destination host is on the same subnet.

D) Listens to see if the Ethernet is busy.

View Answer
Option – D.