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.
Answer : C
Explanation
Controller - Software Code that controls the interactions between the Model and View.
Q 2 - Which of the following is correct?
A - The Action class manages the application's state.
Answer : C
Explanation
Both of the above statements are correct.
Q 3 - Which of the following is correct about the Named 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 : C
Explanation
These objects include #application, #session, #request, #attr and #parameters and refer to the corresponding servlet scopes.
Q 4 - Which of the following is true about internationalization?
B - The internationalization process is sometimes called translation or localization enablement.
Answer : C
Explanation
Both of the above statements are correct.
Q 5 - What is the purpose of @Result 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 : B
Explanation
The @result annotations have the name that correspond to the outcome of the execute method. They also contain a location as to which view should be served corresponding to return value from execute().
Q 6 - What is the purpose of @DateRangeFieldValidator annotation?
B - This annotation marks a action method that needs to be executed before the result.
D - This annotation checks that a date field has a value within a specified range.
Answer : D
Explanation
This validation annotation checks that a date field has a value within a specified range.
Q 7 - What is the purpose of @StringLengthFieldValidator 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 String field is of the right length.
Answer : D
Explanation
This validator checks that a String field is of the right length. It assumes that the field is a String. If neither minLength nor maxLength is set, nothing will be done.
Q 8 - Which of the following tag takes two or more lists as parameters and merge them all together?
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 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 - With Struts applications, there is a lot more going on behind the scenes than with normal Java-based Web applications.
Answer : A
Explanation
With Struts applications, there is a lot more going on behind the scenes than with normal Java-based Web applications.
