Discuss the CAP theorem and its implications for distributed systems.
Answer:
- CAP Theorem: The CAP theorem, also known as Brewer’s theorem, states that in a distributed system, it is impossible to simultaneously achieve all three of the following properties: consistency, availability, and partition tolerance.
- Consistency: Every read receives the most recent write or an error.
- Availability: Every request receives a response, without guaranteeing that it contains the most recent write.
- Partition Tolerance: The system continues to operate despite network partitions or message loss between nodes.
- Implications for Distributed Systems:
- Distributed systems must make trade-offs between consistency, availability, and partition tolerance, depending on their requirements and priorities.
- Systems can be categorized as CP (Consistency and Partition Tolerance), AP (Availability and Partition Tolerance), or CA (Consistency and Availability), based on the properties they prioritize.
- Understanding the CAP theorem helps architects and developers design and architect distributed systems that meet specific requirements while acknowledging the inherent trade-offs.
Software Developer Interview Questions
Software developer interview questions can cover a wide range of topics, depending on the specific role, company, and level of experience being targeted. The software developer interview questions aim to assess a candidate’s technical skills, problem-solving abilities, communication skills, and fit for the role and the company.
Table of Content
- Interview Questions for Internship and Fresher Level
- Interview Questions for Software Development Engineer SDE 1 level
- Interview Questions for Software Development Engineer SDE 2 level
- Interview Questions for Software Development Engineer SDE 3 level