Question

Why CSMA/CD network has a minimum length for packets?

(a) to increase the data rate

(b) to decrease the data rate

(c) to prevent packets from reaching all other nodes

(d) to make sure that all other nodes hear a collision in progress

The question was asked in semester exam.

Origin of the question is Baseband Channel topic in portion Baseband Data Transmission of Analog Communications

Answer 1

Right choice is (d) to make sure that all other nodes hear a collision in progress

The explanation: CSMA/CD is a media access control used in early Ethernet technology for local area networking. Its packets has less length when compared to others to make sure that all other nodes hear a collision in progress.