In a token ring network the transmission speed is 10^7 bps and the propagation…

Find the time to transmit one bit and multiply by the propagation speed to get the equivalent cable length.

Step 1: Time to transmit one bit = 1 / transmission speed = 1 / 10^7 s = 1e-7 s = 0.1 microsecond.

Step 2: Distance = propagation speed × time = 200 meters/microsecond × 0.1 microsecond = 20 meters.

Conclusion: The 1-bit delay is equivalent to 20 metres of cable.

• Transmission speed: 10^7 bits per second

• Propagation speed: 200 meters per microsecond

• 1-bit time = 0.1 microsecond → distance = 200 × 0.1 = 20 meters