Spring Boot MCQ Questions and Answers | Set 6

Welcome to Set 6 of our 100+ Spring Boot MCQ Questions and Answers series. This Set 6 continues from MCQs 51-60 and covers Spring Boot and Spring annotations.

Complete Spring Boot MCQ Questions and Answers series:

Spring Boot MCQ Questions and Answers | Set 1

Spring Boot MCQ Questions and Answers | Set 2

Spring Boot MCQ Questions and Answers | Set 3

Spring Boot MCQ Questions and Answers | Set 4

Spring Boot MCQ Questions and Answers | Set 5

Spring Boot MCQ Questions and Answers | Set 6

Spring Boot MCQ Questions and Answers | Set 7

Spring Boot MCQ Questions and Answers | Set 8

Spring Boot MCQ Questions and Answers | Set 9

Spring Boot MCQ Questions and Answers | Set 10

51. How does Spring Boot support creating JMS (Java Message Service) applications?

a) By using the spring-boot-starter-jms dependency

b) Through manual configuration of JMS providers

c) By requiring a separate messaging server

d) Through XML configuration

Answer:

a) By using the spring-boot-starter-jms dependency

Explanation:

Spring Boot supports the creation of JMS applications by providing the spring-boot-starter-jms starter. It simplifies the integration with JMS providers like ActiveMQ or Artemis.

52. What is the function of the @JsonInclude annotation in Spring Boot?

a) To include specific fields in JSON serialization

b) To configure RESTful web services

c) To define database entities

d) To configure application properties

Answer:

a) To include specific fields in JSON serialization

Explanation:

The @JsonInclude annotation in Spring Boot is used to control the inclusion of properties in JSON serialization. It allows specifying which fields should be included in the JSON output.

53. What is the role of the @Profile annotation in Spring Boot?

a) To enable Aspect-Oriented Programming

b) To configure application security

c) To define scheduled tasks

d) To specify beans for specific profiles

Answer:

d) To specify beans for specific profiles

Explanation:

The @Profile annotation in Spring Boot is used to specify that a bean should only be active in a specific profile, allowing for conditional bean registration based on the active environment.

54. How does Spring Boot handle logging?

a) By using a dedicated logging module

b) Through manual configuration of logging frameworks

c) By providing integration with common logging frameworks

d) By requiring a separate logging server

Answer:

c) By providing integration with common logging frameworks

Explanation:

Spring Boot handles logging by providing integration with common logging frameworks like Logback, Log4j2, and JUL (Java Util Logging). It automatically configures logging with sensible defaults.

55. What is the primary function of the spring-boot-starter-data-mongodb dependency?

a) To provide support for MongoDB integration

b) To enable RESTful web services

c) To support WebSocket communication

d) To offer batch processing functionalities

Answer:

a) To provide support for MongoDB integration

Explanation:

The spring-boot-starter-data-mongodb starter includes dependencies required for integrating Spring Boot applications with MongoDB, a popular NoSQL database.

56. In Spring Boot, how is a bean defined?

a) Through XML configuration files

b) By using the @Bean annotation in a configuration class

c) By declaring it in the application.properties file

d) By using a dedicated BeanFactory

Answer:

b) By using the @Bean annotation in a configuration class

Explanation:

In Spring Boot, a bean can be defined using the @Bean annotation within a configuration class. This annotation tells Spring that a method returns an object that should be registered as a bean in the Spring application context.

57. What is the role of the @RequestParam annotation in a Spring Boot web application?

a) To bind a method parameter to a web request parameter

b) To define a RESTful endpoint

c) To configure application security

d) To define a scheduled task

Answer:

a) To bind a method parameter to a web request parameter

Explanation:

The @RequestParam annotation in Spring Boot is used in controller methods to bind a method parameter to a web request parameter. It's commonly used to handle HTTP GET requests.

58. In Spring Boot, what is the purpose of the @EnableCaching annotation?

a) To enable batch processing

b) To configure application properties

c) To enable caching capabilities

d) To enable WebSocket functionality

Answer:

c) To enable caching capabilities

Explanation:

The @EnableCaching annotation in Spring Boot enables caching capabilities in the application. It activates Spring's annotation-driven cache management functionality.

59. What is the primary use of the @JsonView annotation in Spring Boot?

a) To configure RESTful web services

b) To define different views of a JSON-serialized object

c) To define database entities

d) To configure application properties

Answer:

b) To define different views of a JSON-serialized object

Explanation:

The @JsonView annotation in Spring Boot is combined with Jackson to define different views for JSON serialization. It allows specifying which properties of an object are included in the JSON output for different scenarios.

60. What is the role of the spring-boot-starter-websocket dependency?

a) To provide support for WebSocket communication

b) To enable RESTful web services

c) To add batch processing capabilities

d) To provide email-sending functionalities

Answer:

a) To provide support for WebSocket communication

Explanation:

The spring-boot-starter-websocket starter includes dependencies required for using WebSockets in Spring Boot, enabling real-time communication between a client and a server.