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 statement is not correct?

A - Core and beans modules provide the fundamental parts of the framework, including Dependency Injection feature.

B - The SpEL module provides a powerful Expression Language for querying and manipulating an object graph at runtime.

C - Aspects module provides integration with AspectJ.

D - None of the above.

Answer : D

Explanation

All of the above statements are correct.

Q 2 - Which are the IoC containers in Spring?

A - BeanFactory, ApplicationContext

B - BeanFactory, ApplicationContext, IocContextFactory

C - BeanFactory, BeanContext, IocContextFactory

D - BeanFactory, ApplicationContext, BeanContext

Answer : A

Explanation

BeanFactory, ApplicationContext classes acts as IoC containers in Spring.

Q 3 - What is default scope of bean in Spring framework?

Answer : A

Explanation

singleton is the default scope of any spring bean.

Q 4 - What is autodetect mode of autowiring?

A - Similar to byType, but type applies to constructor arguments. If there is not exactly one bean of the constructor argument type in the container, a fatal error is raised.

B - Autowiring by property name. Spring tries to match and wire its properties with the beans defined by the same names in the configuration file.

C - Spring first tries to wire using autowire by constructor, if it does not work, Spring tries to autowire by byType.

D - Autowiring by property type. Spring tries to match and wire a property if its type matches with exactly one of the beans name in configuration file.

Answer : C

Explanation

In autodetect mode of autowiring spring first tries to wire using autowire by constructor, if it does not work, Spring tries to autowire by byType.

Q 5 - What is ContextClosedEvent event?

A - This event is published when the Servlet Context is either initialized or refreshed.

B - This event is published when the HTTP Request is received.

C - This event is published when the HTTP Response is returned.

D - This event is published when the ApplicationContext is closed using the close() method on the ConfigurableApplicationContext interface.

Answer : D

Explanation

This event is published when the ApplicationContext is closed using the close() method on the ConfigurableApplicationContext interface.

Q 6 - How after-throwing advice works?

A - Run advice after a method execution only if method exits by throwing an exception.

B - Run advice after a class loads only if class throws exception during load time.

C - Run advice after http response is returned with error status.

D - Run advice after http request is processed and an exception occurred.

Answer : A

Explanation

after-throwing advice runs after http request is processed and an exception occurred.

Q 7 - Core container has AOP as one of its module.

Answer : B

Explanation

AOP is not the part of spring core container.

Q 8 - Thread scoped bean is introduced in which version of spring framework.

Answer : C

Explanation

Thread scoped bean is introduced in 3.0 version of spring framework.

Q 9 - Which class is used to map a database row to a java object in spring?

C - RowSetMapper

D - ResultSetMapper

Answer : B

Explanation

RowMapper class is used to map a database row to a java object in spring.

Q 10 - What is ACID in transactional management?

A - Accurate, Controlled, Isolation, Durability

B - Atomicity, Consistency, Independent, Done

C - Atomicity, Consistency, Isolation, Durability

D - Accurate, Controlled, Independent, Done

Answer : C

Explanation

ACID stands for Atomicity, Consistency, Isolation, Durability.

spring_questions_answers.htm

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