Spring Boot Objective Questions and Answers

Test your Spring Boot skills with advanced and interview-focused MCQs. Covers auto-configuration, dependency injection, REST APIs, JPA, security, microservices, configuration, testing, and performance tuning.

Test your Spring Boot skills with carefully curated MCQs designed for real-world development and interview preparation. Focused on configuration, REST APIs, data access, security, and production-ready applications.

Practice Spring Boot MCQs with Detailed Explanations

Answer at least 12 questions to submit.

16

Which annotation is used to mark a class as a JPA entity?

Easy
17

What is Spring Boot Actuator mainly used for?

Medium
18

Which profile is activated by default?

Easy
19

What is the use of @Primary annotation?

Medium
20

Which cache abstraction is supported by Spring Boot?

Medium
21

What does @Transactional ensure?

Medium
22

Which annotation maps HTTP GET requests?

Easy
23

Which layer should contain business logic in a typical Spring Boot application?

Medium
24

What is the default JSON library used by Spring Boot?

Medium
25

Which annotation is used for asynchronous method execution?

Medium
26

Which testing annotation loads only the web layer?

Hard
27

What is the purpose of CommandLineRunner?

Medium
28

Which dependency enables JPA support?

Easy
29

What is the default fetch type for @ManyToOne?

Hard
30

Which annotation marks a method as read-only transaction?

Hard
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