Exam-style question
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Which transmission medium offers the highest bandwidth and lowest attenuation over long distances?.
- A.Coaxial cable
- B.Twisted pair
- C.Fiber optic cable
- D.Wireless radio
Model answer
What a good answer should say
- Fiber optic cable
Explanation
Why this works
Both fibre optic cable and copper cables (coaxial, twisted pair) can transmit data, but fibre optic uses light signals. The key difference is that fibre optic has negligible attenuation and can carry very high bandwidth over kilometres, whereas copper cables lose signal strength and bandwidth over distance.
Fibre optic is therefore the best choice for long‑haul, high‑speed links.
Common mistake
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