Struts2 Online Quiz

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.

Q 1 - Which of the following is correct definition of Controller in MVC architecture?

A - The lowest level of the pattern which is responsible for maintaining data.

B - This is responsible for displaying all or a portion of the data to the user.

C - Software Code that controls the interactions between the Model and View.

D - None of the above.

Answer : C

Explanation

Controller - Software Code that controls the interactions between the Model and View.

Q 2 - Which of the following is correct about dispatcher result type?

A - It is used to forward to a servlet, JSP, HTML page, and so on, on the server. It uses the RequestDispatcher.forward() method.

B - It is used to generate output using predefined templates.

C - It calls the standard response.sendRedirect() method, causing the browser to create a new request to the given location.

D - None of the above.

Answer : A

Explanation

It is used to forward to a servlet, JSP, HTML page, and so on, on the server. It uses the RequestDispatcher.forward() method.

Q 3 - Which of the following components are available using ActionContext map?

A - application - application scoped variables.

B - session - session scoped variables.

C - root / value stack - action variables.

D - All of the above.

Answer : D

Explanation

All of the above options are correct.

Q 4 - What types of validators are available in xml based validation in struts2?

A - expression validator

B - int validator

C - regex validator

D - All of the above.

Answer : D

Explanation

All of the above validators are available in xml based validation in struts2.

Q 5 - Which of the following is true about exception handling in Structs?

A - Struts makes the exception handling easy by the use of the "exception" interceptor.

B - The "exception" interceptor is included as part of the default stack, so you don't have to do anything extra to configure it.

C - It is available out-of-the-box ready for you to use.

D - All of the above.

Answer : D

Explanation

All of the above statement are true.

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 @Key Annotation?

A - This annotation sets the CreateIfNull for type conversion.

B - This annotation sets the Element for type conversion.

C - This annotation sets the Key for type conversion.

D - This annotation is a marker annotation for type conversions at Type level.

Answer : C

Explanation

This annotation sets the Key for type conversion. The Key annotation must be applied at field or method level.

Q 8 - Which of the following tag enables developers to call actions directly from a JSP page by specifying the action name and an optional namespace?

Answer : B

Explanation

The action tag enables developers to call actions directly from a JSP page by specifying the action name and an optional namespace. The body content of the tag is used to render the results from the Action.

Q 9 - Which of the following tag assigns a value to a variable in a specified scope?

Answer : A

Explanation

The set tag assigns a value to a variable in a specified scope. It is useful when you wish to assign a variable to a complex expression and then simply reference that variable each time rather than the complex expression. The scopes available are application, session, request, page and action.

Q 10 - To use MVC with Struts, you have to be comfortable with the standard JSP, Servlet APIs and a large & elaborate framework.

A - false

B - true

Answer : B

Explanation

To use MVC with Struts, you have to be comfortable with the standard JSP, Servlet APIs and a large & elaborate framework.

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