Interview Questions and Answers

Spring Boot DevTools helps you to increase the productivity of the developer. So, you do not require to redeploy your application every time you make the changes. It allows the developer to reload changes without the need of restarting of the server.

It is a special starter which makes Gradle or Maven dependency-management easy by adding jars to your classpath.

Spring Boot Actuator allows you to monitor and manage your application when you want to push it for the production. It helps you to control your application by using HTTP endpoints.

Spring Boot admin is a community project which helps you to manage and monitor your Spring Boot applications.

Spring CLI is used for writing in Groovy Spring Boot application, which helps you to concise code.

Thymelaf is a server-side Java template engine for a web application. It helps you to bring elegant natural templates to your web application.

Yes, it is possible to replace the Embedded Tomcat with any other servers by using the starter dependencies. For that, you can use spring-boot-starter-jetty or as a dependency for according you to your need.

Yes, we can disable the default web server by using application.properties to configure the web application type.

Profiles are used to separate various parts of your spring application configuration and make it only available in certain environments.

LiveReload is a spring-boot-devtools module that includes LiveReload server to trigger a browser refresh when a resource is changed. LiveReload server extensions are available freeware for Firefox, Chrome, and Safari.

Externalized Configuration helps to work with the same code in different environments. Developers can use YAML files, properties files, command-line arguments, and environment variables to externalize configuration.

It is a way to reload the changes without restarting Tomcat, or Jetty server. Eclipse and Many other IDEs support bytecode hot swapping. If you make any changes that don’t affect the method signature, it should reload without side effect.

Spring Boot provides a very useful way to handle exceptions using @ControllerAdvice annotation.

Spring Boot Batch provides code reusability which is important when working with large numbers of records, including transaction management, logging, skipping, job processing statistics, and job restarts.

CORS stands for Cross-Origin Resource Sharing is a  mechanism implemented by browsers and helps users to authorize cross-domain requests. This mechanism serves as an alternative to less secure and less powerful hacks of the kinds of IFrame or JSONP.