Lecture 37 Quiz: Revision & Hands-on (Spring Core)

Note

Review before quiz: Lectures | Week 12 Content | Lab 9

Lecture 37 Self-Check

Question 1: Which concept means the framework controls object creation instead of application code calling new everywhere?

Select an item

A. Dependency Injection

B. Inversion of Control

C. Aspect-Oriented Programming

D. Object Relational Mapping

Question 2: Which DI style is preferred in Spring for testability and explicit dependencies?

Select an item

A. Field injection in all layers

B. Constructor injection for mandatory dependencies

C. Static utility methods for repository calls

D. Creating service objects inside controller methods

Question 3: What is the correct layered flow for a typical Spring MVC request?

Select an item

A. Controller -> Repository -> Service -> Database

B. Service -> Controller -> Repository -> Database

C. Controller -> Service -> Repository -> Database

D. Repository -> Service -> Controller -> Database

Question 4: Which annotation is used for one-time setup after dependency injection is complete?

Select an item

A. @PostConstruct

B. @PreDestroy

C. @Autowired

D. @Primary

Question 5: A Spring app fails with an 'ambiguous bean' error. What is the most likely cause?

Select an item

A. Multiple implementations of same interface without @Qualifier/@Primary

B. Missing semicolon in Java file

C. Using DTO classes in controllers

D. Returning ResponseEntity from REST methods