1- What is Spring Boot? Spring Boot is a set of preconfigured modules that works on top of Spring Framework and simplifies configuring a Spring application. Some of the more central modules are: Spring-boot-dependencies. Contains versions of dependencies Spring-boot-starter-parent. Parent pom.xml Spring-boot-starters. Parent for all the Spring-Boot starter modules Spring-boot-autoconfigure. …

1- Why does Spring prefer unchecked exceptions? Checked exceptions forces developers to either implement error handling in the form of try- catch blocks or to declare exceptions thrown by underlying methods in the method signature. This can result in cluttered code and/or unnecessary coupling to the underlying methods. …

1- What is the concept of AOP? Aspect-Oriented Programming (AOP) enables modularization of cross-cutting concerns. It complements Object-oriented programming (OOP). OOP has class and object as key elements but AOP has aspect as key element. Aspects allow you to modularize some functionality across the application at multiple points. This type of functionality is known as cross-cutting concerns. 2- Which problem does it solve?

1- What is dependency injection and what are the advantages? Dependency injection is a design pattern that promotes loose coupling between the Spring components — that is, between the different collaborating POJOs. So by applying DI to your complex programming, your code will become simpl09er, easier to understand, and easier to test. According to the DI pattern, dependent objects are…