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.
Answer : A
Explanation
The dispatcher result type is the default type and is used if no other result type is specified.
Q 3 - Which of the following is correct about FreeMaker result type?
B - It is used to generate output using predefined templates.
Answer : B
Explanation
It is used to generate output using predefined templates.
Q 4 - What types of validators are available in xml based validation in struts2?
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.
Answer : D
Explanation
All of the above statement are true.
Q 6 - What is the purpose of @DoubleRangeFieldValidator annotation?
A - This annotation checks that a double field has a value within a specified range.
B - This annotation checks that a field is a valid e-mail address if it contains a non-empty String.
C - This annotation validates a supplied regular expression.
D - This annotation checks that a numeric field has a value within a specified range.
Answer : A
Explanation
This validation annotation checks that a double field has a value within a specified range. If neither min nor max is set, nothing will be done.
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 - What is the purpose of @TypeConversion 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 used for class and application wide conversion rules.
Answer : A
Explanation
This annotation annotation is used for class and application wide conversion rules. The TypeConversion annotation can be applied at property and method level.
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 - 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.
