#Spring

12 questions

• What is Spring Boot and how does auto-configuration work?Spring Boot#springJunior›
• What is dependency injection and the IoC container in Spring?Spring Boot#springJunior›
• How do you build a REST API with @RestController in Spring Boot?Spring Boot#apiJunior›
• How do you configure a Spring Boot app with properties and profiles?Spring Boot#springJunior›
• How does Spring Data JPA work and what are derived queries?Spring Boot#databaseMiddle›
• Explain bean scopes and lifecycle callbacks in Spring.Spring Boot#springMiddle›
• How do you handle exceptions globally with @ControllerAdvice?Spring Boot#springMiddle›
• How does @Transactional work, including propagation and rollback?Spring Boot#databaseMiddle›
• How do authentication and authorization work with Spring Security and JWT?Spring Boot#securityMiddle›
• How do you tune performance in a Spring Boot app: pools, caching, N+1?Spring Boot#performanceSenior›
• How do you test a Spring Boot app: @SpringBootTest, MockMvc, slices?Spring Boot#testingSenior›
• How do you build microservices with Spring Boot: config, discovery, resilience?Spring Boot#microservicesSenior›