Question

Why CSMA/CD network has a maximum length for cables?

(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 by my college professor while I was bunking the class.

Question is from Intersymbol Interference in division Baseband Data Transmission of Analog Communications

Answer 1

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

To explain: CSMA/CD is a media access control used in early Ethernet technology for local area networking. Cables used in CSMA/CD has a maximum length when compared to others to make sure that all other nodes hear a collision in progress.