Servlets - Online Quiz


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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.

Questions and Answers

Q 1 - Which of the following is the correct order of servlet life cycle phase methods?

A - init(), service(), destroy()

B - initialize(), service(), destroy()

C - init(), execute(), destroy()

D - init(), service(), delete()

Answer : A

Explaination

The servlet is initialized by calling the init () method. The servlet calls service() method to process a client's request. The servlet is terminated by calling the destroy() method.

Answer : A

Explaination

javax.servlet.Servlet is an interface.

Q 3 - Which of the following code is used to get session in servlet?

A - request.getSession()

B - response.getSession()

C - new Session()

D - None of the above.

Answer : A

Explaination

request.getSession() returns the current session associated with this request, or if the request does not have a session, creates one.

Q 4 - Which of the following code retrieves the query string that is contained in the request URL after the path?

A - Header.getQueryString()

B - response.getQueryString()

C - request.getQueryString()

D - None of the above.

Answer : C

Explaination

request.getQueryString() returns the query string that is contained in the request URL after the path.

Q 5 - Which of the following code retrieves session ID specified by the client?

A - request.getRequestedSessionId()

B - response.getRequestedSessionId()

C - Header.getRequestedSessionId()

D - None of the above.

Answer : A

Explaination

request.getRequestedSessionId() returns the session ID specified by the client.

Q 6 - Which of the following code can be used to clear any data that exists in the buffer as well as the status code and headers?

A - request.reset()

B - response.reset()

C - response.resetBuffer()

D - None of the above.

Answer : B

Explaination

response.reset() clears any data that exists in the buffer as well as the status code and headers.

Q 7 - Which of the following code can be used to set the content type for the body of the response?

A - request.setContentType(type)

B - response.setContentType(type)

C - header.setContentType(type)

D - None of the above.

Answer : B

Explaination

response.setContentType(type) sets the content type for the body of the response.

Answer : A

Explaination

The destroy() method is called only once at the end of the life cycle of a filter.

Q 9 - Does server automatically keep any record of previous client request?

A - true

B - false

Answer : B

Explaination

HTTP is a stateless protocol which means each time a client retrieves a Web page, the client opens a separate connection to the Web server and the server automatically does not keep any record of previous client request.

Answer : A

Explaination

You can call public void setMaxInactiveInterval(int interval) method of session to set the timeout for a session individually.

servlets-questions-answers.htm
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