Tata Consultancy Services System Engineer interview questions

🔹 Microservices / Architecture What are microservices? Independent, loosely-coupled services that communicate over APIs. Event-driven architecture Services communicate via events using Kafka or queues. Service discovery Finding services dynamically using tools like Consul, Eureka, or Kubernetes DNS. Circuit breaker Stops calling a failing service to prevent system collapse. Idempotency Ensures repeated requests give the same result (important for payments).

We were given two programming and two SQL questions to solve. Few DSA questions were asked. For few it also involved questions about the project mentioned in resume. HR round: Team leader and team player difference