Only 5% of the Developers Can Answer These Questions! 🚀
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Understanding the fundamentals of Spring Framework is crucial before diving into Spring Boot. This guide emphasizes the importance of core concepts like Dependency Injection, IoC, and Bean Scopes. It presents thought-provoking questions to enhance comprehension and mastery of Spring's capabilities, which are essential for
Table of contents
Only 5% of the Developers Can Answer These Questions! 🚀Time to do some critical thinking:Answers:1. What is the core philosophy of the Spring Framework?2. Why is Spring considered a lightweight framework despite having so many modules?3. What problems did Spring Framework originally aim to solve in Java EE?4. What is Dependency Injection (DI) and why is it important in Spring?5. What is IOC (Inversion of Control), and how is it different from traditional object creation?6. What are the different scopes of a Spring bean, and how does each impact application behavior?7. What is the role of @Bean and @Configuration, and how do they relate to XML-based configurations?8. What does Spring Boot’s auto-configuration do, and how does it simplify development? Contrast with Spring Framework.9. How do Spring Boot Actuator endpoints compare to traditional monitoring in Spring Framework?10. Why do we still need Spring Framework knowledge even when working with Spring Boot?11. How does the management of application properties differ between Spring Framework and Spring Boot?12. What is the difference between using @SpringBootApplication in Spring Boot and using @Configuration + @EnableAutoConfiguration + @ComponentScan separately in Spring Framework?13. How does Spring Boot handle third-party integrations (like databases, security, and messaging systems) compared to Spring Framework?14. Why does Spring Boot provide default configurations, and how can you override them when needed?15. In what scenarios would you choose Spring Framework over Spring Boot, even today?16. How does Spring Boot’s built-in logging compare to manually configuring logging in Spring Framework?17. Why is Spring Boot better suited for microservices, whereas Spring Framework was originally built for monolithic applications?18. How does the startup time of a Spring Boot application compare to a manually configured Spring Framework application?19. What is the fundamental difference between Spring’s IoC container and a traditional Factory Pattern?20. Why are Beans managed by Spring and not manually created by developers?21. In what cases would you prefer to use XML-based configuration over annotations?22. How does lazy loading of beans impact application performance in Spring?23. What happens internally when Spring Boot autoconfigures a DataSource?24. Why does Spring Boot use spring-boot-starter dependencies instead of letting developers manage versions manually?25. What happens if you remove Spring Boot’s embedded server and try to run the application?26. What is the difference between packaging a Spring Boot app as a JAR vs. a WAR, and how does it affect deployment?27. What happens when you exclude a Spring Boot starter dependency?28. Spring Boot makes it easy to create REST APIs, but does that mean we no longer need DispatcherServlet ? Where does it go in a Spring Boot app?29. Does @Transactional alone guarantee data consistency? What happens if you use it on a private method?30. How does @Autowired behave with @Scope("prototype") beans?31. If Spring Boot eliminates web.xml , do servlets, filters, and listeners still exist?32. Spring Boot auto-creates a DataSource , but what if you define your own?33. What’s the difference between @RestControllerAdvice and @ControllerAdvice ? When should you use each?Sort: