Spring Core - Quiz 01 | Selenium Express

Quiz Summary

0 of 27 Questions completed

Questions:

You have already completed the quiz before. Hence you can not start it again.

Quiz is loading…

You must sign in or sign up to start the quiz.

You must first complete the following:

Results

Quiz complete. Results are being recorded.

Results

0 of 27 Questions answered correctly

Your time:

You have reached 0 of 0 point(s), (0)

Current
Review
Answered
Correct
Incorrect

Question 1 of 27
1. Question
What is a Spring Bean ?
- Any Java object that is managed by Spring is called Spring Bean
- Any Java objects that is managed by JVM is called Spring Bean
Question 2 of 27
2. Question
@Value can help loading the values from ? Choose all that apply –
- Environment properties
- VM Arguments
- properties file
Question 3 of 27
3. Question
Which of the following option is correct about Spring IOC container ?
- Spring create and manages beans inside the IOC container.
- Spring IOC container Inverse the process of object creation. It creates and assembles the objects and let the developer use the beans.
- ApplicationContext and BeanFactory are examples of Spring IOC container.
- All of the above
Question 4 of 27
4. Question
How @ComponentScan detects Spring Beans ?
- @ComponentScan scans the JVM Context, finds all the java beans and, then converts all java beans to to spring bean.
- @ComponentScan scans different packages present inside the classpath. It looks for classes annotated with @Component @Repository, @Service and marks it as Spring Bean.
Question 5 of 27
5. Question
Which object will be Injected through field injection to variable ‘teacher’ , present inside Student component ?

Teacher Interface :

ScienceTeacher :

MathTeacher selected as @Primary

Student
- container.getBean(Student.class).learn();
  will call class teach() method.
Question 6 of 27
6. Question
If you want Spring to manage a ModelMapper Bean (part of a 3rd Party Library), which of the following way you will be defining the bean?
- Annotate the ModelMapper class with @Component annotation.
- Create a ModelMapper bean using @Bean annotation.
Question 7 of 27
7. Question
How the singleton beans are initialized ?
- Lazily Initialized
- Eagerly Initialized
Question 8 of 27
8. Question
Which of these Dependency Injection types is recommended by Spring ?
- Setter Injection
- Constructor Injection
- Field Injection
Question 9 of 27
9. Question
Which of the following is not a stereotype annotation?
- @Component
- @Repository
- @Service
- @Bean
Question 10 of 27
10. Question
Can @Autowired annotation be used on top of the collection?
- Yes
- No
Question 11 of 27
11. Question
Is ApplicationContext works as a resource loader ?
- Yes
- No
Question 12 of 27
12. Question
What happens when a @Autowired annotation doesn’t find a dependency that need to be injected?
- Null value will be assigned to the dependency
- proxy value injected to the dependency
- throws exception
Question 13 of 27
13. Question
Can we use @Profile annotation with @Configuration annotation ?
- Yes
- No
Question 14 of 27
14. Question
What are ApplicationContext responsibilities ?
- Load the resources
- Instantiates beans
- Configure and assemble beans
- Optimizes bean on startup
Question 15 of 27
15. Question
Where @Autowired annotation can be used ?
- on top of constructor
- on top of the field/references
- on top of method parameters
- all of the above are correct
Question 16 of 27
16. Question
what does “@Value(“#{T(com.seleniumexpress.fistspringapp.speladv.Bean1).NAME}”)” spEL expression represents ?
- reading value from a static field NAME from Bean1 class , and injecting to a variable.
- Invoking static method NAME from Bean1 class and Injecting to a variable.
- accessing a instance variable NAME from Bean1 class
Question 17 of 27
17. Question
what does @Value(“#{@bean1.calculateSalary()}”) represents ?
- invoking the static method calculateSalary() from Bean1 class, and injecting it value to a variable
- this is not a valid spEL expression
- this is not a valid spEL expression.
Question 18 of 27
18. Question
A bean can’t be fetched from application context by Type
- true
- false
- bean can only be fetched using the bean name.
Question 19 of 27
19. Question
How can you access properties in Spring ? Choose all that apply –
- We can use Environment class getProperty("Key") method
- use @Value annotation
- using @PropertyValue Annotation
Question 20 of 27
20. Question
What are the below things you can achieve with @Bean annotation ? Choose all that apply –
- we can decide if a bean is qualified to be considered as a auto-wire candidate for other beans.
- we can provide init-method and destroy method
- we can set multiple alias name for a bean
Question 21 of 27
21. Question
Is BeanFactoryPostProcesser executed before BeanPostProcessor ?
- true
- false
Question 22 of 27
22. Question
When BeanFactoryPostProcesser is invoked ?
- Once the container is initialized and beans are ready to use
- Once the bean definitions are created but before any actual beans are created.we can alter/manipulate the bean definitions programmatically before it actually get initialized.
- BeanFactoryPostProcesser is same as BeanPostProcesser.
- it is invoked after the beans are created from bean definitions that are defined in the application configuration file and, once the life cycle methods are invoked, but before the beans are ready to use.
Question 23 of 27
23. Question
can you define private Beans using @Bean annotations inside a Configuration file that are annotated with @Configuration ?
- Yes
- No
Question 24 of 27
24. Question
what are the places where @Profile annotation can be used ? Choose all that apply –
- It can be used with @Bean
- It can be used with @Component
- it can be used with @Configuration
- It can be used with @Repository
Question 25 of 27
25. Question
what is Spring’s singleton scopes mean ?
- One bean for the entire application
- one bean for entire JVM context
- one bean per container
Question 26 of 27
26. Question
Why should we use BeanPostProcessor? Choose all that apply –
- We can post process a bean after it is initialized and dependencies are set. We can post process a bean before the init methods/@PostConstruct/ after property set methods gets called.
- BeanPostProcessor helps us to generate jdk proxy for beans
- BeanPostProcessor allows us to implement postProcessAfterInitialization in order to post process a bean after the life cycles methods are called
- BeanPostProcesser gives us access to bean objects where as BeanFactoryPostProcessor gives access to bean definitions
Question 27 of 27
27. Question
does Standalone spring application context closes automatically ?
- No, We need to call close() or register a shutdown hook with jvm in order to close the application context.
- ApplicationContext close() automatically get's called as it extends to auto closable . Closing the container is taken care by the container.

Spring Core – Quiz 01

Spring Core – Quiz 01

Quiz Summary

Information

Results

Results

Categories

1. Question

2. Question

3. Question

4. Question

5. Question

6. Question

7. Question

8. Question

9. Question

10. Question

11. Question

12. Question

13. Question

14. Question

15. Question

16. Question

17. Question

18. Question

19. Question

20. Question

21. Question

22. Question

23. Question

24. Question

25. Question

26. Question

27. Question