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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.
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Correct Option: B
Data Rate in an Ethernet LAN = 500 Mbps
Frame size = 10000 bits
Propagation Time = Transmission time + Collision signal
| = | + | ||||
| Propagation time | Signal speed | Signal speed |
| = | |||
| 500 × 106 bits / s | 2 × 105 km / s |
Length = 2 km Hence, the maximum length of the cable (in km) is (b) 2 km.
