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    hardik gupta
  • 1 year ago
    • Categories: General

Spring Boot Interview Questions for Experienced

Spring Boot has become a popular framework for building enterprise applications. It provides a rapid development experience by eliminating the need for complex configuration, boilerplate code, and other time-consuming tasks. If you’re an experienced developer looking for a job that requires Spring Boot knowledge, you need to be prepared for some tough interview questions. In this article, we’ll cover some of the most common Spring Boot interview questions for experienced developers.

What is Spring Boot, and what problem does it solve?

Spring Boot is an open-source Java-based framework used to create microservices and standalone applications. It is built on top of the Spring framework, and it eliminates the need for developers to configure and set up the application context. Spring Boot helps developers focus on the business logic rather than worrying about the infrastructure required to run the application. The framework provides a robust set of features that are useful in building modern applications.

What are the different ways to configure a Spring Boot application?

Spring Boot supports multiple ways of configuring an application. The most common approaches include:

  • Using properties files or YAML files to configure the application
  • Using the @Configuration annotation to configure the application
  • Using the Spring Boot Application class and its annotations

What are the advantages of using Spring Boot?

Spring Boot provides several advantages to developers, including:

  • Quick development time: Spring Boot provides a rapid development experience by reducing boilerplate code and the need for complex configurations.
  • Easy deployment: Spring Boot makes it easy to deploy applications as standalone jars, which can be run using a simple java -jar command.
  • Microservices support: Spring Boot provides native support for building microservices-based architectures.
  • Built-in features: Spring Boot provides several built-in features, such as security, data access, and testing, which make it easy to develop robust applications.

What is the difference between a Spring Boot starter and a dependency?

A Spring Boot starter is a collection of dependencies that are required to build a specific type of application, such as a web application or a data access application. It provides a set of pre-configured dependencies that work together seamlessly, allowing developers to get started quickly.

On the other hand, a dependency is a third-party library that is used in the application. Spring Boot includes a wide range of dependencies, such as JDBC drivers, security libraries, and web frameworks.

What are the different types of Spring Boot testing?

Spring Boot provides several testing frameworks, including:

  • JUnit: This is the most popular testing framework for Java applications.
  • Mockito: This framework is used to mock dependencies and write unit tests for the application.
  • Spring Test: This framework is used to write integration tests for the application, and it provides several utilities for testing web applications.

What is Spring Boot Actuator, and what is its purpose?

Spring Boot Actuator is a set of production-ready features that are included in the Spring Boot framework. These features provide insight into the running application and help developers diagnose and debug issues in production environments. Spring Boot Actuator includes several endpoints that provide information about the application, such as health checks, metrics, and environment properties.

What are some of the common challenges you might face while working with Spring Boot?

Some of the common challenges faced while working with Spring Boot include:

  • Configuration issues: Spring Boot provides several ways to configure the application, which can sometimes lead to confusion and conflicts.
  • Version compatibility: Spring Boot has several dependencies, and managing their versions can be a challenging task.
  • Debugging issues: As Spring Boot eliminates boilerplate code and simplifies configurations, it can sometimes be challenging to diagnose issues in the application.

Being well-prepared for a Spring Boot interview requires a good understanding of the framework’s core concepts, features, and best practices. The above questions will give

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