10 Most Asked Microservices Interview Questions for Java Developers
Humpy Adepu
What Are Microservices: Explain independent services architecture, modular deployment, scalability benefits, fault isolation, and flexibility compared with traditional monolithic software applications today.
Why Use Spring Boot: Describe simplified configuration, embedded servers, dependency management, rapid development, production readiness, and seamless microservices deployment using Spring Boot.
What Is Spring Cloud: Explain service discovery, configuration management, distributed tracing, circuit breakers, and cloud-native application development support within microservices environments effectively.
How Does Service Discovery Work?: Discuss automatic registration, service lookup, dynamic communication, load balancing, and resilience using discovery servers like Eureka successfully.
What Is API Gateway: Explain centralized request routing, authentication, traffic management, rate limiting, security policies, and simplified communication across distributed microservices architectures effectively.
What Is Circuit Breaker Pattern: Describe preventing cascading failures, improving resilience, monitoring service health, fallback responses, and maintaining application stability during failures efficiently.
How Do Microservices Communicate: Explain synchronous REST APIs, asynchronous messaging, event-driven communication, message brokers, and integration strategies for distributed application services effectively.
What Is Distributed Tracing: Describe monitoring requests across multiple services, identifying bottlenecks, improving debugging, observability, and optimizing performance in complex microservices environments efficiently.
How Do You Secure Microservices: Discuss authentication, authorization, OAuth, JWT tokens, encryption, API security, secure communication, and identity management best practices comprehensively.