Company

Infosys

Real interview questions with expert answers, plain-English explanations, and practical examples. (4 questions)

Infosys Backend Developer Caching

Beyond LRU: how do different cache eviction policies impact system performance and data freshness, and when would you choose each?

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Infosys Backend Developer Data Structures & Algorithms

When would you use a graph data structure, and what traversal algorithms are most suitable for different real-world problems?

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Infosys AI Engineer Machine Learning

How would you handle class imbalance in a fraud detection model?

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Infosys QA Engineer Testing

What’s the difference between smoke, sanity, and regression testing, and when do you run each in a CI pipeline?

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