Multiple choice technology architecture

Approximately how much time does it take to transfer a 1 GB file over a 10 Mbps Ethernet LAN? Assume 20% degradation in bandwidth because of Ethernet overheads ?

  1. 1 hour

  2. 30 minutes

  3. 15 minutes

  4. 5 minutes

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

With 20% overhead, effective bandwidth is 8 Mbps. Converting 1 GB to megabits: 1 GB = 8,192 Mb. At 8 Mbps, time = 8,192 / 8 = 1,024 seconds ≈ 17 minutes. Option C (15 minutes) is the closest approximation.