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2. Network Model Types - Data Communication & Networks

📖 From Data Communication & Networks • 110 questions available

Practice MCQs for 2. Network Model Types. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-06-28

32
Easy Questions
51
Medium Questions
27
Hard Questions

📝 Topics in this Chapter

📝 Sample Questions

Q1. What is the primary purpose of protocol layering in data communication?

🔹 A. To increase the speed of data transmission.
🔹 B. To reduce the amount of data being sent.
🔹 C. To divide a complex task into several smaller, simpler tasks.
🔹 D. To eliminate the need for error detection.

💡 Difficulty: easy | ✅ Correct: C

Q2. According to the first principle of protocol layering, what is required for bidirectional communication?

🔹 A. Each layer must perform the same task in both directions.
🔹 B. Each layer must be able to perform two opposite tasks, one in each direction.
🔹 C. Each layer must use the same protocol.
🔹 D. Each layer must be physically identical at both sites.

💡 Difficulty: medium | ✅ Correct: B

Q3. Which of the following is NOT an advantage of protocol layering?

🔹 A. It simplifies complex tasks.
🔹 B. It separates services from implementation.
🔹 C. It reduces the total number of protocols needed.
🔹 D. It allows for modularity.

💡 Difficulty: hard | ✅ Correct: C

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