📝 Digital to Digital Conversion

📖 From Data Communication & Networks • 4. Digital Transmission • 41 questions available

Practice MCQs for Digital to Digital Conversion. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-06-28

Easy Questions

Medium Questions

Hard Questions

📝 Sample Questions

Q1. What is line coding?

🔹 A. The process of converting analog data to digital signals.

🔹 B. The process of converting digital data to digital signals.

🔹 C. The process of converting digital data to analog signals.

🔹 D. The process of converting analog data to analog signals.

💡 Difficulty: easy | ✅ Correct: B

Q2. What is the difference between a data element and a signal element?

🔹 A. A data element carries a signal; a signal element represents information.

🔹 B. A signal element carries a data element; a data element represents information.

🔹 C. They are the same thing.

🔹 D. A data element is analog, and a signal element is digital.

💡 Difficulty: medium | ✅ Correct: B

Q3. What is the B8ZS scrambling technique?

🔹 A. A technique that substitutes eight consecutive zeros with 000VB0VB.

🔹 B. A technique that substitutes four consecutive zeros with 000V.

🔹 C. A technique that substitutes eight consecutive ones with 111VB1VB.

🔹 D. A technique that substitutes eight consecutive zeros with 000VVB0.

💡 Difficulty: hard | ✅ Correct: A

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🔗 Related Topics

📝 Introduction to Data Communications 📝 Network Concepts (Criteria & Topologies)📝 Network Types (LAN, WAN, Switching)📝 Standards and Administration 📝 The Internet and its History

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