Networking
Spot it
Spot the Error: Transmission Delay
Can you spot the mistake in this delay calculation?
Quick check · tap an answer to continue
Lesson notes
Key points
- Transmission delay equals packet size divided by link rate: L ÷ R.
- Packet size L = 1,500 bytes, and rate R = 10,000,000 bits per second.
- Delay = 1,500 ÷ 10,000,000 = 0.00015 seconds.
- So the transmission delay is 0.15 milliseconds.
Takeaway: Convert bytes to bits before dividing by link rate.
Quick check: Which step is wrong?
- Step 1
- Step 2
- Step 3
Bytes were not converted to bits; link rates are in bits per second.
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