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 true in the life cycle of a request in Struct2 application?
A - Selected action is executed to perform the requested operation.
B - Configured interceptors are applied to do any post-processing if required.
C - Finally the result is prepared by the view and returns the result to the user.
Answer : D
Explanation
All of the above steps are part of the life cycle of a request in Struct2 application.
Q 2 - Which of the following is true about struts.xml?
B - This file can be used to override default settings for an application.
C - This file can be created under the folder WEB-INF/classes.
Answer : D
Explanation
All of the above statements are correct.
Q 3 - Which of the following is correct about Temporary Objects?
A - There are various temporary objects which are created during execution of a page.
B - The current model object is placed before the action on the value stack.
Answer : A
Explanation
There are various temporary objects which are created during execution of a page. For example the current iteration value for a collection being looped over in a JSP tag.
Q 4 - How Struts 2 validation works?
C - If any errors have been added then Struts 2 will not proceed to call the execute method.
Answer : D
Explanation
All of the above statements are correct.
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 @After 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 : D
Explanation
The @After annotation marks a action method that needs to be called after the main action method and the result was executed. 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 takes two or more lists as parameters and append them all together?
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.
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.
