Spring Boot cheat sheet before Interview | Spring Boot Interview Questions & Answers | Code Decode

In this video of code decode we have explained the spring boot cheat sheet which one should know before preparing spring boot topics for Interview

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If you’re preparing for Spring Boot interviews or want to upgrade your skills as a senior developer, this video is your ultimate guide. I’ve covered everything from core concepts to security, microservices, performance tuning, testing, and common pitfalls – all tailored for experienced Java developers.
Whether you’re targeting FAANG, product companies, or enterprise interviews, this cheat sheet will give you the edge to stand out.

🔥 What You’ll Learn in This Video:
✅ Core Spring Boot Concepts – Starters, Profiles, Dependency Injection, Actuator, Externalized Config✅ Security Deep Dive – JWT, OAuth2, RBAC vs ABAC, API Gateway security, Zero Trust✅ Microservices Best Practices – Service discovery, distributed transactions, resilience, observability✅ Performance & Monitoring – Tracing, metrics, JVM tuning, caching, DB optimization✅ Testing Strategies – Unit, Integration, Contract, E2E, Chaos testing✅ Common Pitfalls – N+1 queries, actuator exposure, blocking in WebFlux, wrong deployment practices✅ Design Patterns in Spring Boot – Proxy, Observer, Template Method, Decorator✅ Property Precedence & Config Management – What every senior dev must know

🎯 Who Is This For?
Senior Developers preparing for Spring Boot interviews
Backend Engineers moving into Microservices & Cloud-native roles
Java Developers who want to master Spring Boot in 2025
Engineers aiming to crack product-based company interviews

🛠 Tools & Frameworks Discussed:
Spring Boot 3.x
Spring Security (JWT, OAuth2, MFA)
Spring Cloud, Kubernetes, Vault
Resilience4j, Micrometer, Prometheus, Grafana
JUnit5, TestContainers, Pact, WireMock
Docker, Kubernetes, Istio, API Gateway

⚡ Stay Ahead in Interviews
Companies are not asking basic questions anymore. They expect you to know:
Resilience & Observability patterns
Cloud-native deployments with K8s
Advanced Security (Zero Trust, API Scopes)
Performance optimization in real-world systems

👉 Watch till the end for pro tips + real-world pitfalls that most developers miss.👉 Don’t just study for interviews – learn like an architect.


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