Servlets - Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Servlets 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 - When service() method of servlet gets called?
A - The service() method is called when the servlet is first created.
B - The service() method is called whenever the servlet is invoked.
Answer : B
Explaination
Each time the server receives a request for a servlet, the server spawns a new thread and calls service() method.
Q 2 - Which of the following method can be used to get the value of form parameter?
B - request.getParameterValues()
Answer : A
Explaination
You call request.getParameter() method to get the value of a form parameter.
Q 3 - Which of the following code retrieves the name of the authentication scheme?
Answer : C
Explaination
request.getAuthType() returns the name of the authentication scheme used to protect the servlet, for example, BASIC or SSL or null if the JSP was not protected.
Q 4 - Which of the following code retrieves the value of a request parameter?
B - response.getParameter(name)
Answer : C
Explaination
request.getParameter(name) returns the value of a request parameter as a String, or null if the parameter does not exist.
Q 5 - Which of the following code encodes the specified URL for use in the sendRedirect method?
A - response.encodeRedirectURL(url)
B - request.encodeRedirectURL(url)
Answer : A
Explaination
response.encodeRedirectURL(url) encodes the specified URL for use in the sendRedirect method or, if encoding is not needed, returns the URL unchanged.
Q 6 - Which of the following code can be used to add a header?
A - request.addHeader(name,value)
B - response.addDateHeader(name,value)
Answer : B
Explaination
response.addHeader(name,date) adds a response header with the given name and value.
Q 7 - Which of the following are valid servlet filters?
Answer : D
Explaination
All of the above filters are suggested by the servlet specifications.
Q 8 - Which of the following is true about javax.servlet.error.exception_type?
Answer : B
Explaination
javax.servlet.error.exception_type attribute gives information about exception type which can be stored and analysed after storing in a java.lang.Class data type.
Q 9 - Which of the following way can be used to keep track of previous client request?
Answer : D
Explaination
All of the above can be used to keep track of previous client request.
Q 10 - Which of the following code is used to get three-letter abbreviation for this locale's language in servlets?
Answer : C
Explaination
request.getISO3Language() returns a three-letter abbreviation for this locale's language.
