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 is packet length L divided by link rate R.
- L is 1500 bytes, so we use L = 1500 bits.
- R is 10 Mbps, which is 10,000,000 bits per second.
- So delay is 1500 ÷ 10,000,000 = 0.15 milliseconds.
Takeaway: Always 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; rate is in bits per second, so multiply by 8.
Lessons like this, for your syllabus.
Short narrated study videos written for your course, level and exam. Free to start.
Get lessons for your own syllabus