Struts2 Online Quiz

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Following quiz provides Multiple Choice Questions (MCQs) related to Struts2 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 feature is present in Struts 2?

A - Easy integration with Spring, Tiles and SiteMesh frameworks.

B - Support for generating views using templates.

C - Plugin Support

D - All of the above.

Answer : D

Explanation

All of the above features are supported in Struts 2.

Q 2 - Which of the following is true about action tag in struts.xml?

A - We define action tags corresponds to every URL we want to access.

B - we define a class with execute() method which will be accessed whenever we will access corresponding URL.

C - Both of the above.

D - None of the above.

Answer : C

Explanation

Both of the above statements are correct.

Q 3 - Which of the following is correct about the OGNL?

A - The Object-Graph Navigation Language (OGNL) is a powerful expression language that is used to reference and manipulate data on the ValueStack.

B - OGNL also helps in data transfer and type conversion.

C - Both of the above.

D - None of the above.

Answer : C

Explanation

Both of the above options are correct.

Q 4 - What should be the name of xml file used for validation in struts?

A - '[action-class]'-validation.xml

B - validation.xml

C - Both of the above.

D - None of the above.

Answer : A

Explanation

The xml file needs to be named '[action-class]'-validation.xml.

Q 5 - What is the purpose of @Results annotation?

A - This annotation is a collection of results.

B - This annotation have the name that correspond to the outcome of the execute method.

C - This annotation is used to decorate the execute() method.

D - This annotation marks a action method that needs to be called after the main action method.

Answer : A

Explanation

A @Results annotation is a collection of results. Under the @Results annotation, we can have multiple @Result annotations.

Q 6 - What is the purpose of @BeforeResult annotation?

A - This annotation marks a action method that needs to be called before the main action method and the result was executed.

B - This annotation marks a action method that needs to be executed before the result.

C - This annotation checks if there are any conversion errors for a field and applies them if they exist.

D - This annotation checks that a date field has a value within a specified range.

Answer : B

Explanation

The @BeforeResult annotation marks a action method that needs to be executed before the result. Return value is ignored.

Q 7 - What is the purpose of @CustomValidator annotation?

A - This annotation checks that a field is a valid URL.

B - This annotation is used to nest several annotations of same type.

C - This annotation can be used for custom validators.

D - This annotation checks that a String field is of the right length.

Answer : C

Explanation

This annotation can be used for custom validators. Use the ValidationParameter annotation to supply additional params.

Q 8 - Which of the following tag takes two or more lists as parameters and merge them all together?

A - if and else tags.

B - iterator tags

Answer : C

Explanation

These merge tag take two or more lists as parameters and merge them all together.

Q 9 - Which of the following tag is used to render a I18n text message?

Answer : B

Explanation

The text tag is used to render a I18n text message.

Q 10 - Struts2 promotes less configuration with the help of using default values for various settings.

Answer : A

Explanation

Struts2 promotes less configuration with the help of using default values for various settings. You don't have to configure something unless it deviates from the default settings set by Struts2.

struts_questions_answers.htm

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