Question

Determine the maximum length of the cable (in km) for transmitting data at a rate of 500 Mbps in an Ethernet LAN with frames of size 10,000 bits. Assume the signal speed in the cable to be 2,00,000 km/s.

• A. 1
• B. 5
• C. 2
• D. 2.5

Answer 1

The correct option is C 2

$\frac{10000bit}{500\times {10}^{6}bits/sec}=\frac{2\times L}{2\times {10}^{5}km/sec}$
L = 2 km