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 - 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.

Q 2 - Which of the following method can be used to get the value of form parameter?

A - request.getParameter()

B - request.getParameterValues()

C - request.getParameterNames()

D - None of the above.

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 body of the request as binary data?

A - new InputStream()

B - response.getInputStream()

C - request.getInputStream()

D - None of the above.

Answer : C

Explaination

request.getInputStream() retrieves the body of the request as binary data using a ServletInputStream.

Q 4 - Which of the following code retrieves name and version of the protocol?

A - Header.getProtocol()

B - response.getProtocol()

C - request.getProtocol()

D - None of the above.

Answer : C

Explaination

request.getProtocol() returns the name and version of the protocol the request.

Q 5 - Which of the following code retrieves the fully qualified name of the client making this request?

A - request.getRemoteHost()

B - response.getRemoteHost()

C - Header.getRemoteHost()

D - None of the above.

Answer : A

Explaination

request.getRemoteHost() returns the fully qualified name of the client that sent the request.

Q 6 - Which of the following code can be used to force any content in the buffer to be written to the client?

A - request.flushBuffer()

B - response.flush()

C - response.flushBuffer()

D - None of the above.

Answer : C

Explaination

response.flushBuffer() forces any content in the buffer to be written to the client.

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.

Q 8 - Which of the following is true about javax.servlet.error.request_uri?

A - This attribute gives exact error message which can be stored and analysed after storing in a java.lang.String data type.

B - This attribute gives information about exception type which can be stored and analysed after storing in a java.lang.Class data type.

C - This attribute gives status code which can be stored and analysed after storing in a java.lang.Integer data type.

D - This attribute gives information about URL calling the servlet and it can be stored and analysed after storing in a java.lang.String data type.

Answer : D

Explaination

javax.servlet.error.request_uri attribute gives information about URL calling the servlet and it can be stored and analysed after storing in a java.lang.String data type.

Q 9 - Which of the following code is used to update an attribute in a HTTP Session object in servlets?

A - session.setAttribute(name,value)

B - session.alterAttribute(name,value)

C - session.updateAttribute(name,value)

D - None of the above.