What are vector clocks in the context of the distributed system?
- Vector clock is a way of tracing causality in a distributed system.
- Every node has a vector which characterizes how it knows the sequence of events.
- The vector clock gets updated when an event takes place.
- These vector clocks allow for partial order on events to be defined and conflict resolutions for distributed systems that are done based upon causality and consistency.
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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