Why is the two-phase commit protocol important?
- Two-phase commit provides an atomicity transaction protocol used between several nodes.
- The system comprises of a coordinator and a participant node. A coordinator asks all participants whether they could comply in the first stage.
- The second phase involves coordination between all the players and agreement that each one will commit on their part. The coordinator orders all participants to stop if any participant disagrees or refuses to respond.
- The two-phase commits guarantee that either everything commits, or nothing commits, making it consistent.
Top Most Asked System Design Interview Questions
System Design is defined as a process of creating an architecture for different components, interfaces, and modules of the system and providing corresponding data helpful in implementing such elements in systems.
Table of Content
- 1. Why is it better to use horizontal scaling than vertical scaling?
- 2. What is sharding, and how does it improve database scalability?
- 3. What is CAP theorem?
- 4. What do you understand by load balancer? Why is it important in system design?
- 5. What are the various Consistency patterns available in system design?
- 6. When would you use cache layer of a system?
- 7. A reverse proxy in a web architecture means what?
- 8. Outline the role played by a CDN in Web Architecture.
- 9. Describe the concepts of RESTful API principles.
- 10. How does a message broker operate within a distributed environment?
- 11. Why should we use NoSQL database?
- 12. What does the Singleton Design Pattern aim at?
- 13. Discuss what is consistent hashing ?
- 14. Why is the two-phase commit protocol important?
- 15. What are vector clocks in the context of the distributed system?
- 16. Explain the function of consensus algorithms in distributed systems.
- 17. How does the āgraceful degradationā principle impacts on system design?
- 18. What are the bottlenecks in system design?
- Conclusion
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