Which statement best describes how Spring Boot manages classes annotated with @Component internally?

hard📝 Conceptual Q10 of 15

Spring Boot - Inversion of Control and Dependency Injection

Which statement best describes how Spring Boot manages classes annotated with @Component internally?

ASpring creates a new instance every time the component is requested

BSpring creates and manages singleton instances by default in its application context

CSpring requires manual instantiation of @Component classes

DSpring only manages @Component classes if they implement an interface

Step-by-Step Solution

Solution:

Step 1: Recall Spring bean scope default
By default, Spring creates one singleton instance per @Component class in the application context.
Step 2: Eliminate incorrect behaviors
Spring does not create new instances on each request unless scope is changed; manual instantiation is not needed; interfaces are not required.
Final Answer:
Spring creates and manages singleton instances by default in its application context -> Option B
Quick Check:
@Component beans = Singleton by default [OK]

Quick Trick: Default scope for @Component beans is singleton [OK]

Common Mistakes:

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