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📝 Introduction to Transmission Media in Physical Layer

📖 From Data Communication & Networks • 7. Transmission Media • 18 questions available

Practice MCQs for Introduction to Transmission Media in Physical Layer. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-31

5
Easy Questions
8
Medium Questions
5
Hard Questions

📝 Sample Questions

Q1. Why was telegraph communication limited to short distances?

🔹 A. Because the signals were digital
🔹 B. Because the metallic medium caused high resistance
🔹 C. Because of lack of encryption
🔹 D. Because of satellite interference

💡 Difficulty: easy | ✅ Correct: B

Q2. What inference can be drawn from Hertz's 1895 experiment with high‑frequency signals?

🔹 A. It proved that sound can travel faster than light
🔹 B. It demonstrated the feasibility of wireless transmission
🔹 C. It showed that metallic wires were unnecessary for telegraph
🔹 D. It indicated that vacuum cannot carry signals

💡 Difficulty: medium | ✅ Correct: B

Q3. Given the rapid increase in data rates of fiber‑optic cables, what is the most plausible future trend for transmission media?

🔹 A. A return to copper cables due to cost
🔹 B. Hybrid systems combining fiber and wireless
🔹 C. Exclusive use of free‑space optics in all environments
🔹 D. Elimination of physical media altogether

💡 Difficulty: hard | ✅ Correct: B

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🔗 Related Topics

📝 Guided media: Twisted Pair Cable📝 Guided media: Coaxial Cable📝 Guided media: Fiber Optic Cable📝 Unguided media: Wireless📝 Unguided media: Radio Waves
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