Spring Questions and Answers
Spring - Questions and Answers

Spring Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to Spring Framework. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 1 - Which of the following is correct about dependency injection?

A - It helps in decoupling application objects from each other.

B - It helps in deciding the dependencies of objects.

C - It stores objects states in database.

D - It stores object states in file system.

Answer : A

Explanation

Dependency injection helps in decoupling application objects from each other.

Q 2 - Which is the correct implementation class of BeanFactory?

A - XmlBeanFactory

B - ClassPathBeanFactory

C - FileSystemBeanFactory

D - AdvancedBeanFactory

Answer : A

Explanation

XmlBeanFactory is the implementation class of BeanFactory. Other mentioned classes do not exists.

Q 3 - What is session scope?

A - This scopes a bean definition to an HTTP session.

B - This scopes the bean definition to Spring IoC container.

C - This scopes the bean definition to HTTP request.

D - This scopes the bean definition to HTTP Application/ Global session.

Answer : A

Explanation

session scope instructs Spring IoC container to create a instance per HTTP session.

Q 4

Can you inject null and empty string values in Spring?

Answer : A

Explanation

null and empty string values can be injected in spring beans.

Q 5 - What is true about @Autowired annotation?

A - The @Autowired annotation can be used to autowire bean on the setter method.

B - This annotation provides more fine-grained control over where and how autowiring should be accomplished.

C - The @Autowired annotation can be used to autowire bean on the methods with arbitrary names and/or multiple arguments.

D - All of above.

Answer : B

Explanation

@Autowired annotation provides more fine-grained control over where and how autowiring should be accomplished.

Q 6 - How after-returning advice works?

A - Run advice after a class loads only if class loads successfully.

B - Run advice after a method execution only if method completes successfully.

C - Run advice after http response is returned only if http response is success.

D - Run advice after http request is processed with no exception.

Answer : B

Explanation

before advice runs after a method execution only if method completes successfully.

Q 7 - How to use ref keyword in beans.

xml?

A - Using setter method only.

B - Using constructor argument only.

C - Using setter method and constructor argument both.

D - None of the above.

Answer : C

Explanation

ref is used to reference already defined bean and it can be used using both setter method and constructor argument.

Q 8 - Can we integrate Struts with Spring.

Answer : A

Explanation

Struts can be integrated with spring.

Q 9 - How to handle shut down of IoC container?

A - Using shutdownHook()

B - Using shutdownHandler()

C - Using registerHook()

D - Using registerShutdownHook()

Answer : D

Explanation

Using registerShutdownHook() method, shut down of IoC container can be handled. Other methods do not exists.

Q 10 - Can we inject value and ref both together in a bean?

Answer : A

Explanation

Both values and ref can be injected at a time in a bean.

spring_questions_answers.htm

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