Spring Core · interview question
Why do teams use DTOs in a Spring Boot application in production code?
Multiple choiceMediumchapter-9-curatedpremiumspring-coredtos-and-entities
Answer and explanation
Correct answer
D. To decouple API representations from database schemas.
Why
DTOs (Data Transfer Objects) are used to transfer data between the application layers and to decouple the API representation from the database schema. This ensures that changes in the database structure do not directly affect the API's data contracts.
Test yourself on Spring Core
A free test with instant, explained results. No account needed.
More Spring Core questions
- In a Spring Boot application, what happens if a method annotated with @Transactional calls a private method also…
- Which layer should coordinate inventory checks, payment, and order persistence for a checkout request?
- What role do Entities typically play in a Spring Boot application?
- How can you externalize configuration in a Spring Boot application?
- Which issue might arise from using field injection in Spring Boot, particularly when managing dependencies?
- In a Spring Boot application, what is the main purpose of the @ComponentScan annotation?