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Servlet Objective Questions and Answers

Strengthen your understanding of Java Servlets with topic-wise multiple-choice questions covering Servlet lifecycle, request & response handling, sessions, cookies, filters, listeners, security, and deployment descriptors.

Practice Servlet MCQs with Detailed Explanations

Answer at least 12 questions to submit and verify answers.

1 What are the mechanisms available in ServletContextListener interface?

contextInit(), contextService(), contextDestroyed()

contextInitialized((),contextDestroyed()

contextInitialized(), contextService(), contextDestroyed()

None of the above

2 A deployment descriptor describes

web component response settings

web component settings

web component request objects

All of the above

3 Dynamic interception of requests and responses to transform the information is done by

servlet container

servlet config

servlet context

servlet filter

4 he life cycle of a servlet is managed by

servlet context

servlet container

the supporting protocol (such as http or https)

all of the above

5 The include() method of RequestDispatcher

sends a request to another resource like servlet, jsp or html

includes resource of file like servlet, jsp or html

appends the request and response objects to the current servlet

None of the above

6 The method forward(request,response) will

return back to the same method from where the forward was invoked

not return back to the same method from where the forward was invoked and the web pages navigation continues

Both A and B are correct

None of the above

7 What is the limit of data to be passed from HTML when doGet() method is used?

8 The getSession() method with 'true' as its parameter [ getSession(true) ] it will return the appropriate session object when

the session is completed

the session object is passed to another method

the session does not exists

the session is existing

9 Which of the following are the session tracking techniques?

URL rewriting, using session object, using response object, using hidden fields

URL rewriting, using session object, using cookies, using hidden fields

URL rewriting, using servlet object, using response object, using cookies

URL rewriting, using request object, using response object, using session object

10 In which advantage of servlet, Servlets are managed by JVM so no need to worry about memory leak, garbage collection etc.?

Better performance

Portability

Robust

Secure

11 In the following statements identify the disadvantages of CGI?

If number of clients increases, it takes more time for sending response

For each request, it starts a process and Web server is limited to start processes

It uses platform dependent language e.g. C, C++, perl

All mentioned above

12 In HTTP Request Which Asks for the loopback of the request message, for testing or troubleshooting?

PUT

OPTIONS

DELETE

TRACE

13 In RequestDispacher which method is used to sends the same request and response objects to another servlet?

forward()

sendRedirect()

Both A & B

None of the above

14 An object of Which is created by the web container at time of deploying the project?

ServletConfig

ServletContext

Both A & B

None of the above

15 An attribute in servlet is an object that can be set, get or removed from one of the following scopes?

session scope

request scope

application scope

All mentioned above

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