Spring Framework Technology & Digital Applications 3

Question 1

Which Spring Data interface should you extend to get CRUD operations plus pagination and sorting out of the box?

Accepted Answer

JpaRepository

Answer

JpaRepository extends PagingAndSortingRepository and CrudRepository, adding JPA-specific methods like flush() and batch delete.

Question 2

What happens when you use @Transactional on a method called from within the same class in Spring?

Accepted Answer

The transaction annotation is ignored because Spring AOP uses proxies

Answer

Spring's default proxy-based AOP intercepts calls from outside the bean; internal self-invocation bypasses the proxy and thus the @Transactional behavior.

Question 3

In Spring Batch, what is the purpose of the ItemProcessor interface?

Accepted Answer

Transforms or filters an item between reading and writing

Answer

ItemProcessor sits between the ItemReader and ItemWriter in a chunk-oriented step and can transform, validate, or filter each item.

Question 4

Which actuator endpoint exposes the application's live health indicators?

Accepted Answer

/actuator/health

Answer

The /actuator/health endpoint aggregates all registered HealthIndicator beans to report application and dependency health.

Question 5

What is the default scope of a Spring bean?

Accepted Answer

singleton

Answer

Beans are singleton-scoped by default, meaning the Spring container creates exactly one instance per application context.

Spring Framework Practice Test

Spring Framework Practice Test

Spring Framework Technology & Digital Applications 3