Spring: questions

1. What are the main Spring features?

• AOP support 
• Lightweight framework 
• container 
• Inversion of control implementation 

2. How many jar files do new versions of Spring consist of?

• Many 

3. What are some modules that present in Spring?

• AOP 
• Beans 
• Test Context
• Web 

4. Which modules are part of Data Access layer in Spring Framework?

• JPA 
• JMS

5. What is hard to do when high coupling present?

• Easy implementation swap 
• Unit-test in isolation

6. What are the possible bean scopes present in Spring?

• singleton
• prototype
• request
• session

7. What is the default bean scope in Spring?

• singleton

8. What is true about inner beans?

• Can't be reused by other beans
• Created when outer bean is initialized

9. How to define a static method that creates a bean?

• <bean factory-method="..."