Spring Boot and Configuration

Question 1

What is Spring Boot?

Answer 1

A framework built on top of Spring to simplify the configuration and deployment of Spring-based applications with minimal setup.

Question 2

What is a Spring Boot starter?

Answer 2

Pre-configured sets of dependencies that make it easier to set up a Spring project.

Question 3

What does the @SpringBootApplication annotation do?

Answer 3

It combines @Configuration, @EnableAutoConfiguration, and @ComponentScan annotations.

Question 4

How can you customize properties in a Spring Boot application?

Answer 4

By editing the application.properties or application.yml file.

Question 5

What is Spring Boot’s auto-configuration?

Answer 5

A feature that automatically configures Spring application based on the dependencies present on the classpath.

Question 6

How do you define custom properties in Spring Boot?

Answer 6

By adding key-value pairs to application.properties and accessing them using @Value or @ConfigurationProperties.

Question 7

How can you run a Spring Boot application?

Answer 7

Using the main() method in a class annotated with @SpringBootApplication, or using the command mvn spring-boot:run.

Question 8

What does the @ConfigurationProperties annotation do?

Answer 8

t binds externalized properties to Java objects.

Question 9

What is the default server in Spring Boot?

Answer 9

Tomcat, but you can switch to Jetty, Undertow, or others.

Question 10

How can you override default auto-configuration in Spring Boot?

Answer 10

By manually configuring the required beans or properties.