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    rajendra digari
  • 2 years ago
    • Categories: General

Spring Boot Interview Questions

Spring Boot is a popular Java-based framework used for building web applications. It provides a simple and efficient way to create standalone, production-grade applications that can be easily deployed on various platforms. If you are planning to interview for a Spring Boot developer position, you should be prepared to answer questions related to its features, architecture, and usage. In this article, we’ll explore some commonly asked Spring Boot interview questions and provide tips on how to answer them.

  1. What is Spring Boot and what are its advantages?

Spring Boot is a Java-based framework that allows developers to quickly create web applications. It provides a set of tools and plugins that simplify the development and deployment process, making it easier for developers to focus on writing business logic. Some of the advantages of using Spring Boot include its fast development time, easy configuration, auto-configuration, and production-ready features.

  1. What is a Spring Boot starter?

A Spring Boot starter is a pre-defined dependency bundle that includes all the necessary libraries, configurations, and code to get started with a specific type of application. For example, the Spring Boot Web starter includes everything needed to build a web application, including Tomcat, Spring MVC, and other related dependencies.

  1. What is Spring Boot auto-configuration?

Spring Boot auto-configuration is a feature that automatically configures Spring applications based on the libraries that are present on the classpath. It detects and configures the necessary beans, data sources, and other components required for the application to function properly. This feature saves developers a lot of time and effort by reducing the need for manual configuration.

  1. What is the difference between @Component, @Service, and @Repository in Spring?

@Component, @Service, and @Repository are all used to mark a class as a Spring-managed component, but they are used in different contexts. @Component is a generic stereotype for any Spring-managed component, @Service is used to mark a class as a service component, and @Repository is used to mark a class as a data access component. While all three annotations are technically interchangeable, it’s best practice to use the annotation that best fits the component’s role.

  1. What is Spring Boot Actuator?

Spring Boot Actuator is a set of production-ready features that allow developers to monitor and manage their applications. It provides endpoints for metrics, health checks, and other useful information about the application. Developers can use Actuator to easily monitor and manage their applications in production environments.

  1. What is the difference between Spring and Spring Boot?

Spring is a Java-based framework that provides a wide range of features and tools for building web applications. Spring Boot, on the other hand, is a tool that provides a simpler and more streamlined way to build Spring applications. While Spring provides a lot of flexibility, Spring Boot provides a faster and more efficient way to build production-ready applications.

  1. How does Spring Boot handle external configuration?

Spring Boot provides several ways to handle external configuration. It supports property files, YAML files, and environment variables for external configuration. It also provides support for different profiles, allowing developers to define different configurations for different environments.

Preparing for a Spring Boot interview can be challenging, but with the right knowledge and preparation, you can increase your chances of landing the job. In this article, we’ve explored some common Spring Boot interview questions and provided tips on how to answer them. By familiarizing yourself with these topics and practicing your answers, you’ll be well-prepared to demonstrate your expertise in Spring Boot and impress potential employers.

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