Distributed Databases MCQ Test: Distributed Databases MCQs - Practice Questions
1. How does the 'Quorum-based Replication' approach enhance the reliability and performance of distributed databases compared to traditional replication methods?
2. What is the primary advantage of using distributed databases over centralized databases?
3. What role does the 'Paxos algorithm' play in distributed databases?
4. Explain the principles and challenges of achieving quorum-based consistency in distributed databases, and analyze its impact on system reliability and performance.
5. Discuss the concept of eventual consistency in distributed databases.
6. Elaborate on the principles and challenges of achieving geo-replication in distributed databases, and analyze its impact on system performance and data consistency.
7. Which data storage model is commonly used in distributed databases?
8. What is the role of a distributed database coordinator?
9. What is the primary goal of distributed database systems?
10. How does the 'Chord algorithm' contribute to the scalability and efficiency of distributed hash tables (DHTs) in large-scale distributed systems?
11. How does the 'Vector Clock' algorithm help maintain causality in distributed databases?
12. Explain the CAP theorem in the context of distributed databases.
13. Discuss the trade-offs between synchronous and asynchronous replication in the context of ensuring fault tolerance in distributed databases.
14. What challenges are associated with achieving global consistency in distributed databases?
15. What is the significance of the two-phase commit protocol in distributed databases?
16. Discuss the advantages and challenges of implementing Multi-Version Concurrency Control (MVCC) in distributed databases, particularly in scenarios with high transaction rates.
17. Discuss the challenges and benefits of implementing distributed transactions in scenarios with high concurrency and data contention in distributed databases.
18. What is the purpose of a distributed log in a distributed database system?
19. Examine the impact of node failures on the consistency and availability of distributed databases, and propose strategies for fault detection and recovery.
20. Why are distributed databases used?