Rani Dhage

80% of Java Spring Boot interview questions come from just 20% of core concepts — this guide helps you focus on what really counts!

What’s Inside????? 

Part 1: Core to Advanced Backend Development - 500+ Detailed Q&A

500+ carefully selected interview questions, covering Java core to Cloud Each question comes with: 

1. Clear explanations 
2. Real-world examples 
3. Practical insights to simplify complex topics 

Topics Covered:

1. Core Java → OOP, Exception Handling, Generics, Functional Programming, Multithreading, ExecutorService, Design Patterns (Singleton, Factory).
2. Spring Framework → IoC, DI, AOP, Bean Lifecycle, Annotations & Lombok.
3. Spring Boot & REST APIs → Auto-Configuration, CRUD APIs, HTTP Codes, REST Best Practices.
4. Data Persistence → SQL, JDBC, Connection Pooling, Hibernate ORM, Spring Data JPA, Custom Queries.
5. Security → Spring Security, AuthN & AuthZ, OAuth2, JWT.
6. Caching & Redis → Cache vs Cookie, Redis with Spring Boot.
7. Unit Testing → JUnit 5, Mockito, MockMvc.
8. Microservices & Messaging → Spring Cloud, Eureka, Gateway, Feign Client, Kafka, Hystrix, Microservices Design Patterns.
9. DevOps & Deployment → Maven, Jenkins, GitHub Actions, Docker, AWS/Azure, Monitoring Tools.

Part 2: Bonus Resources & Real-World Practice

Because theory isn’t enough, you’ll also get:

1. Handpicked YouTube channels
2. Top Udemy courses for deep-dives.
3. GitHub repositories
4. Advanced project ideas



💡 PS: I’ll keep updating this course with fresh resources so you always have the latest learning material.

If you’re struggling with backend development interviews, don’t worry. You don’t need to know everything — just the right things. This course zeroes in on those key areas, helping you build confidence and land your next backend role.