You want to build a Spring Boot app that is easy to maintain and test. Which enterprise pattern combination helps achieve this best?

hard📝 Application Q15 of 15

Spring Boot - Advanced Patterns

APut all logic in one class annotated with @SpringBootApplication

BUse layered architecture with @Controller, @Service, and @Repository layers

CUse only @RestController and skip service layer

DWrite all database queries directly in controller methods

Step-by-Step Solution

Solution:

Step 1: Understand layered architecture benefits
Separating concerns into controller, service, and repository layers makes code easier to maintain and test.
Step 2: Evaluate other options
Putting all logic in one class or skipping layers leads to messy, hard-to-test code.
Final Answer:
Use layered architecture with @Controller, @Service, and @Repository layers -> Option B
Quick Check:
Layered architecture = maintainable, testable [OK]

Quick Trick: Separate concerns into layers for clarity [OK]

Common Mistakes:

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