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 : C

Explaination

The POST method sends the encoded user information as a seperate message to page request. It is used to submit form data normally.

Q 3 - Which of the following code retrieves the name of the authentication scheme?

A - new AuthType()

B - response.getAuthType()

C - request.getAuthType()

D - None of the above.

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 any extra path information associated with the URL the client sent?

A - Header.getPathInfo()

B - response.getPathInfo()

C - request.getPathInfo()

D - None of the above.

Answer : C

Explaination

request.getPathInfo() returns any extra path information associated with the URL the client sent when it made this request.

Q 5 - Which of the following code encodes the specified URL by including the session ID in it?

A - response.encodeURL(url)

B - request.encodeURL(url)

C - Header.encodeURL(url)

D - None of the above.

Answer : A

Explaination

response.encodeURL(url) encodes the specified URL by including the session ID in it, or, if encoding is not needed, returns the URL unchanged.

Q 6 - Which of the following code can be used to send an error response to the client using the specified status code and clearing the buffer.

A - request.sendError(statusCode)

B - response.sendError(statusCode)

C - header.sendError(statusCode)

D - None of the above.

Answer : B

Explaination

response.sendError(statusCode) sends an error response to the client using the specified status code and clearing the buffer.

Q 7 - Which of the following code can be used to set the locale of the response?

A - request.setLocale(locale)

B - response.setLocale(locale)

C - header.setLocale(locale)

D - None of the above.

Answer : B

Explaination

response.setLocale(locale) sets the locale of the response.

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

A - session.getAttribute(name)

B - session.alterAttribute(name)

C - session.updateAttribute(name)

D - None of the above.

Answer : A

Explaination

session.getAttribute() returns the object bound with the specified name in this session, or null if no object is bound under the name.

Q 10 - Which of the following code is used to set auto refresh of a page after 5 seconds?

A - session.setIntHeader("Refresh", 5)

B - response.setIntHeader("Refresh", 5)

C - request.setIntHeader("Refresh", 5)

D - None of the above.

Answer : B

Explaination

response.setIntHeader("Refresh", 5) sets refresh, autoload time as 5 seconds.

servlets-questions-answers.htm
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