📝 Reliability in distributed system

📖 From Operating System • 17. Distributed Systems • 8 questions available

Practice MCQs for Reliability in distributed system. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-27

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📝 Sample Questions

Q1. What is the definition of reliability in a distributed system?

🔹 A. Probability that a component performs its intended function without failure for a specified period

🔹 B. Speed at which data is transferred

🔹 C. Amount of resources shared

🔹 D. Degree of coupling between nodes

💡 Difficulty: easy | ✅ Correct: A

Q2. Why does replicating a service on multiple nodes increase the reliability of a distributed system?

🔹 A. It reduces network latency

🔹 B. It balances load among users

🔹 C. If one node fails the others can still provide the service

🔹 D. It decreases the amount of code needed

💡 Difficulty: medium | ✅ Correct: C

Q3. How does the concept of fault tolerance relate to reliability in distributed systems?

🔹 A. Fault tolerance is unrelated to reliability

🔹 B. Fault tolerance mechanisms enable a system to continue operating despite failures, thereby improving reliability

🔹 C. Fault tolerance only concerns security

🔹 D. Fault tolerance reduces the need for replication

💡 Difficulty: hard | ✅ Correct: B

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🔗 Related Topics

📝 Advantages of Distributed Systems 📝 Resource sharing in distributed system 📝 Computation speedup in distributed system 📝 Communication in distributed system 📝 Network operating systems

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