Spring Framework

How can you enable asynchronous processing in Spring Boot? A) By using the @Async annotation B) By using the @EnableAsync annotation C) By setting spring.async.enabled=true in application.properties D) Both A and B Answer: D) Both A and B Explanation: In Spring Boot, you can enable asynchronous processing by using the @EnableAsync annotation in your configuration […]

How can you profile a Spring Boot application? A) By using the @Profile annotation B) By using the @SpringBootApplication annotation C) By setting the spring.profiles.active property D) Both A and C Answer: D) Both A and C Explanation: Profiling in a Spring Boot application allows you to create environment-specific configurations. This is useful for running

How do you configure logging in a Spring Boot application? A) By adding a logback.xml or log4j2.xml file in the classpath B) By setting logging properties in application.properties C) By adding a logging dependency like Logback or Log4j2 D) All of the above Answer: D) All of the above Explanation: Logging in a Spring Boot

What is the purpose of @RestControllerAdvice in Spring Boot? A) To handle exceptions for REST controllers globally B) To configure REST endpoints C) To apply caching for REST controllers D) To configure security for REST endpoints Answer: A) To handle exceptions for REST controllers globally Explanation: The @RestControllerAdvice annotation in Spring Boot is used to

How do you integrate Spring Boot with a NoSQL database like MongoDB? A) By using the spring-boot-starter-data-mongodb dependency B) By manually configuring the MongoDB client in the application C) By using the spring-boot-starter-nosql dependency D) By using the @NoSql annotation Answer: A) By using the spring-boot-starter-data-mongodb dependency Explanation: To integrate Spring Boot with a NoSQL

What is the role of @EnableCaching in Spring Boot? A) To enable the application to cache data automatically B) To configure cache settings in application.properties C) To activate caching for specific beans or methods D) To enable caching for all beans in the application Answer: A) To enable the application to cache data automatically Explanation:

How do you implement a custom error page in Spring Boot? A) By creating an HTML file named error.html in the src/main/resources/templates directory B) By setting custom-error-page=true in application.properties C) By implementing ErrorController interface D) Both A and C Answer: D) Both A and C Explanation: In Spring Boot, you can implement a custom error

What is Spring Boot’s WebClient used for? A) To handle HTTP requests and responses in a reactive way B) To replace RestTemplate with a non-blocking client C) To perform CRUD operations with MongoDB D) Both A and B Answer: D) Both A and B Explanation: Spring Boot’s WebClient is a non-blocking, reactive client that is

How can you enable asynchronous processing in Spring Boot? A) By using the @Async annotation B) By using the @EnableAsync annotation C) By setting spring.async.enabled=true in application.properties D) Both A and B Answer: D) Both A and B Explanation: In Spring Boot, you can enable asynchronous processing by using the @EnableAsync annotation in your configuration

How can you profile a Spring Boot application? A) By using the @Profile annotation B) By using the @SpringBootApplication annotation C) By setting the spring.profiles.active property D) Both A and C Answer: D) Both A and C Explanation: Profiling in a Spring Boot application allows you to create environment-specific configurations. This is useful for running

What does the @Configuration annotation do in Spring Boot? A) It marks a class as a Spring component B) It marks a class as a source of bean definitions C) It marks a class as a Spring controller D) It marks a class as a RESTful service Answer: B) It marks a class as a

How can you create a Spring Boot project? A) Manually download Spring Boot libraries and set up the project B) Use Spring Initializr C) Use Maven or Gradle with Spring dependencies D) All of the above Answer: D) All of the above Explanation: There are multiple ways to create a Spring Boot project: Manually download

Which of the following files is used to configure application properties in a Spring Boot project? A) config.xml B) application.properties C) config.yml D) settings.xml Answer: B) application.properties Explanation: The application.properties file is used to configure application properties in a Spring Boot project. This file allows developers to specify various configuration settings, such as server ports,

What does the @Autowired annotation do in Spring Boot? A) Manually inject dependencies into fields, constructors, or setters B) Automatically inject dependencies into fields, constructors, or setters C) Automatically create a new instance of a class D) Mark a bean as lazy-initialized Answer: B) Automatically inject dependencies into fields, constructors, or setters Explanation: The @Autowired

Which of the following annotations is used to enable JPA repositories in Spring Boot? A) @EnableJpaRepositories B) @EnableAutoConfiguration C) @EnableTransactionManagement D) @EnableJpaAuditing Answer: A) @EnableJpaRepositories Explanation: The @EnableJpaRepositories annotation is used in Spring Boot to enable the scanning of JPA repositories, which are interfaces that extend the JpaRepository interface to provide CRUD operations and custom

How can you disable the embedded server in Spring Boot? A) Remove the server dependency from the classpath B) Set the server port to 0 in the application.properties C) Set the server port to -1 in the application.properties D) Use @SpringBootApplication without @EnableAutoConfiguration Answer: A) Remove the server dependency from the classpath Explanation: To disable

What is the default embedded server used in Spring Boot? A) Jetty B) Undertow C) Tomcat D) WebSphere Answer: C) Tomcat Explanation: By default, Spring Boot uses Tomcat as its embedded server. This means that when you create a Spring Boot application, it automatically includes an embedded Tomcat server that allows you to run your

Which annotation is used to create a RESTful web service in Spring Boot? A) @Controller B) @Service C) @RestController D) @Component Answer: C) @RestController Explanation: The @RestController annotation in Spring Boot is used to create RESTful web services. It is a specialized version of the @Controller annotation, combining @Controller and @ResponseBody annotations. This combination simplifies

Which of the following is NOT a feature of Spring Boot? A) Embedded server support B) Opinionated starter dependencies C) Automatic configuration D) Integrated Java compiler Answer: D) Integrated Java compiler Explanation: Spring Boot provides many features that simplify the development and deployment of Spring-based applications, including embedded server support (like Tomcat, Jetty, or Undertow),

What is the primary purpose of the @SpringBootApplication annotation? A) To enable JPA repositories B) To scan for components in the project C) To mark the main class of a Spring Boot application and enable auto-configuration D) To configure a Spring Boot application for use with an external server Answer: C) To mark the main

What is Spring Boot? A) A command-line tool for managing Spring projects B) A framework that simplifies the development of Spring applications by providing default configurations C) A tool for building Android applications D) A database management system Answer: B) A framework that simplifies the development of Spring applications by providing default configurations Explanation: Spring