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.

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 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 indicates whether the response has been committed?

A - response.isCommitted()

B - request.isCommitted()

C - Header.isCommitted()

D - None of the above.

Answer : A

Explaination

response.isCommitted() returns a boolean indicating if the response has been committed.

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 character encoding for the body of the response?

A - response.setCharacterEncoding(charset)

B - request.setCharacterEncoding(charset)

C - header.setCharacterEncoding(charset)

D - None of the above.

Answer : A

Explaination

response.setCharacterEncoding(charset) sets the character encodinge for the body of the response.

Q 8 - Which of the following request attributes that an error-handling servlet can access to analyse the nature of error/exception?

A - javax.servlet.error.status_code

B - javax.servlet.error.exception_type

C - javax.servlet.error.message

D - All of the above.

Answer : D

Explaination

All of the above request attributes can be accessed by error-handling servlet.

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 get country/region code in servlets?

A - request.getCountry()

B - Locale.getCountry()

C - response.getCountry()

D - None of the above.

Answer : A

Explaination

request.getCountry() returns the country/region code in upper case for this locale in ISO 3166 2-letter format.

servlets-questions-answers.htm
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