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 not a part of Struts architecture?

A - Actions

B - Interceptors

C - EJB

D - Value Stack / OGNL

Answer : C

Explanation

EJBs are not a part of Struts architecture.

Q 2 - Which of the following is true about struts-config.xml?

A - The struts-config.xml configuration file is a link between the View and Model components in the Web Client.

B - In form-beans section, you can map your ActionForm subclass to a name.

C - In global-forwards section you can map a page on your webapp to a name

D - All of the above.

Answer : D

Explanation

All of the above statements are correct.

Q 3 - Which interceptor is responsible for file upload support?

A - FileUpload

B - File

C - Upload

D - None of the above.

Answer : A

Explanation

File uploading in Struts is possible through a pre-defined interceptor called FileUpload interceptor which is available through the org.apache.struts2.interceptor.

Q 4 - How Struts 2 validation works?

A - When the user presses the submit button, Struts 2 will automatically execute the validate method.

B - if any of the if statements listed inside the validate method are true, Struts 2 will call its addFieldError method.

C - If any errors have been added then Struts 2 will not proceed to call the execute method.

D - All of the above.

Answer : D

Explanation

All of the above statements are correct.

Q 5 - Which of the following theme provides all the basics that the simple theme provides and adds several features like standard two-column CSS-based layout?

Answer : C

Explanation

css_xhtml theme - This theme provides all the basics that the simple theme provides and adds several features like standard two-column CSS-based layout, using for the HTML Struts Tags, Labels for each of the HTML Struts Tags, placed according to the CSS stylesheet.

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 @RequiredStringValidator annotation?

A - This annotation validates a string field using a regular expression.

B - This annotation checks that a field is non-null.

C - This annotation checks that a String field is not empty

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

Answer : C

Explanation

This validation annotation checks that a String field is not empty (i.e. non-null with a length > 0).

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

A - if and else tags.

B - iterator tags

C - merge tag

D - append tag

Answer : D

Explanation

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

Q 9 - Which of the following tag is used to get the property of a value, which will default to the top of the stack if none is specified?

Answer : C

Explanation

The property tag is used to get the property of a value, which will default to the top of the stack if none is specified.

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

A - true

B - false

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