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📝 Performance

📖 From Data Communication & Networks • 3. Physical Layer Introduction • 30 questions available

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

🔄 Last updated: 2026-06-28

8
Easy Questions
15
Medium Questions
7
Hard Questions

📝 Sample Questions

Q1. What is the definition of throughput in a network?

🔹 A. The range of frequencies contained in a signal.
🔹 B. The measure of how fast data can actually be sent through a network.
🔹 C. The theoretical maximum speed of a link.
🔹 D. The time it takes for a packet to travel from source to destination.

💡 Difficulty: easy | ✅ Correct: B

Q2. What is the propagation time of a signal?

🔹 A. The time required to put all bits of a message on the line.
🔹 B. The time required for a bit to travel from source to destination.
🔹 C. The time a packet waits in a queue.
🔹 D. The time it takes for the packet to be processed.

💡 Difficulty: medium | ✅ Correct: B

Q3. What is the transmission time for a 5 MB (megabyte) message over a 2 Mbps link?

🔹 A. 20 seconds
🔹 B. 40 seconds
🔹 C. 60 seconds
🔹 D. 80 seconds

💡 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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