Chapter:

30+ Servlet and Overview Solved MCQs

in Advanced JAVA

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Master of Science in Information Technology (MSc IT) , Master of Science in Computer Science (MSc CS) , Bachelor of Business Administration in Computer Applications (BBA [CA]) , Programming Languages , Master of Science in Software Engineering (MSc SE) .

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Chapter: Servlet and Overview

1.	How is the dynamic interception of requests and responses to transform the information done?
A.	servlet container
B.	servlet config
C.	servlet context
D.	servlet filter
Answer» D. servlet filter

2.	Which type of ServletEngine is a server that includes built-in support for servlets?
A.	Add-on ServletEngin
B.	Embedded ServletEngine
C.	Standalone ServletEngine
D.	None of the above
Answer» C. Standalone ServletEngine

3.	What type of servlets use these methods doGet(), doPost(),doHead, doDelete(), doTrace()?
A.	Genereic Servlets
B.	HttpServlets
C.	All of the above
D.	None of the above
Answer» B. HttpServlets

4.	Which cookie it is valid for single session only and it is removed each time when the user closes the browser?
A.	Persistent cookie
B.	Non-persistent cookie
C.	All the above
D.	None of the above
Answer» B. Non-persistent cookie

5.	Sessions is a part of the SessionTracking and it is for maintaining the client state at server side.
A.	True
B.	False
C.	none
D.	all
Answer» A. True

6.	When destroy() method of a filter is called?
A.	The destroy() method is called only once at the end of the life cycle of a filter
B.	The destroy() method is called after the filter has executed doFilter method
C.	The destroy() method is called only once at the begining of the life cycle of a filter
D.	The destroyer() method is called after the filter has executed
Answer» A. The destroy() method is called only once at the end of the life cycle of a filter

7.	Web server is used for loading the init() method of servlet.
A.	True
B.	False
C.	none
D.	all
Answer» A. True

8.	Servlets handle multiple simultaneous requests by using threads.
A.	True
B.	False
C.	none
D.	all
Answer» A. True

9.	Which method is used to send the same request and response objects to another servlet in RequestDispacher ?
A.	forward()
B.	sendRedirect()
C.	Both A & B
D.	None of the above
Answer» A. forward()

10.	The sendRedirect() method of HttpServletResponse interface can be used to redirect response to another resource, it may be servlet, jsp or html file
A.	True
B.	False
C.	none
D.	all
Answer» A. True

11.	Which packages represent interfaces and classes for servlet API?
A.	javax.servlet
B.	javax.servlet.http
C.	Both A & B
D.	None of the above
Answer» C. Both A & B

15.	What is the lifecycle of a servlet?
A.	Servlet class is loaded
B.	Servlet instance is created
C.	init,Service,destroy method is invoked
D.	All mentioned above
Answer» D. All mentioned above

16.	Which method in session tracking is used in a bit of information that is sent by a web server to a browser and which can later be read back from that browser?
A.	HttpSession
B.	URL rewriting
C.	Cookies
D.	Hidden form fields
Answer» C. Cookies

17.	Which are the examples of Application Server?
A.	Apache
B.	Tomcat
C.	JBoss
D.	Weblogic
Answer» C. JBoss

18.	How many techniques are used in Session Tracking?
A.	4
B.	3
C.	2
D.	5
Answer» A. 4

12.	Which class can handle any type of request so that it is protocol-independent?
A.	GenericServlet
B.	HttpServle
C.	Both A & B
D.	None of the above
Answer» A. GenericServlet

13.	Which HTTP Request method is non-idempotent?
A.	GET
B.	POST
C.	Both A & B
D.	None of the above
Answer» C. Both A & B

14.	Which object is created by the web container at time of deploying the project?
A.	ServletConfig
B.	ServletContext
C.	Both A & B
D.	None of the above
Answer» B. ServletContext

19.	In HTTP Request method Get request is secured because data is exposed in URL bar
A.	True
B.	False
C.	none
D.	all
Answer» B. False

20.	In the following statements identify the disadvantages of CGI?
A.	If number of clients increases, it takes more time for sending response
B.	For each request, it starts a process and Web server is limited to start processes
C.	It uses platform dependent language e.g. C, C++, perl
D.	All mentioned above
Answer» D. All mentioned above

21.	Servlet technology is used to create web application
A.	True
B.	False
C.	none
D.	all
Answer» A. True

22.	Which method is used to specify before any lines that uses the PintWriter?
A.	setPageType()
B.	setContextType()
C.	setContentType()
D.	setResponseType()
Answer» C. setContentType()

23.	What are functions of Servlet container?
A.	Lifecycle management
B.	Communication Support
C.	Multithreading Support
D.	All of the above
Answer» D. All of the above

24.	Which object of HttpSession can be used to view and manipulate information about a session?
A.	session identifier
B.	creation time
C.	last accessed time
D.	All mentioned above
Answer» D. All mentioned above

25.	Which methods are used to bind the objects on HttpSession instance and get the objects?
A.	setAttribute
B.	getAttribute
C.	Both A & B
D.	None of the above
Answer» C. Both A & B

30+ Servlet and Overview Solved MCQs

How is the dynamic interception of requests and responses to transform the information done?

Which type of ServletEngine is a server that includes built-in support for servlets?

What type of servlets use these methods doGet(), doPost(),doHead, doDelete(), doTrace()?

Which cookie it is valid for single session only and it is removed each time when the user closes the browser?

Sessions is a part of the SessionTracking and it is for maintaining the client state at server side.

When destroy() method of a filter is called?

Web server is used for loading the init() method of servlet.

Servlets handle multiple simultaneous requests by using threads.

Which method is used to send the same request and response objects to another servlet in RequestDispacher ?

The sendRedirect() method of HttpServletResponse interface can be used to redirect response to another resource, it may be servlet, jsp or html file

Which packages represent interfaces and classes for servlet API?

Which class can handle any type of request so that it is protocol-independent?

Which HTTP Request method is non-idempotent?

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

What is the lifecycle of a servlet?

Which method in session tracking is used in a bit of information that is sent by a web server to a browser and which can later be read back from that browser?

Which are the examples of Application Server?

How many techniques are used in Session Tracking?

In HTTP Request method Get request is secured because data is exposed in URL bar

In the following statements identify the disadvantages of CGI?

Servlet technology is used to create web application

Which method is used to specify before any lines that uses the PintWriter?

What are functions of Servlet container?

Which object of HttpSession can be used to view and manipulate information about a session?

Which methods are used to bind the objects on HttpSession instance and get the objects?

Which method take a string not a URL?

Which of the following are interface? 1. ServletContext 2. Servlet 3. GenericServlet 4. HttpServlet

The life cycle of a servlet is managed by

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

Which are the session tracking techniques? i. URL rewriting ii. Using session object iii.Using response object iv. Using hidden fields v. Using cookies vi. Using servlet object

A deployment descriptor describes

The values of <servlet-name> and <servlet-class> in web.xml file

Which of the following are interface?
1. ServletContext
2. Servlet
3. GenericServlet
4. HttpServlet

26.	Which method take a string not a URL?
A.	sendRedirect
B.	forward
C.	Both
D.	None
Answer» A. sendRedirect

27.	Which of the following are interface? 1. ServletContext 2. Servlet 3. GenericServlet 4. HttpServlet
A.	1,2,3,4
B.	1,2
C.	1,2,3
D.	1,4
Answer» B. 1,2

29.	Which of the following code is used to get an attribute in a HTTP Session object in servlets?
A.	session.getAttribute(String name)
B.	session.alterAttribute(String name)
C.	session.updateAttribute(String name)
D.	session.setAttribute(String name)
Answer» A. session.getAttribute(String name)

30.	What is the difference between servlets and applets? i. Servlets execute on Server; Applets execute on browser ii. Servlets have no GUI; Applet has GUI iii. Servlets creates static web pages; Applets creates dynamic web pages iv. Servlets can handle only a single request; Applet can handle multiple requests
A.	i, ii, iii are correct
B.	i, ii are correct
C.	i, iii are correct
D.	i, ii, iii, iv are correct
Answer» B. i, ii are correct

31.	Which are the session tracking techniques? i. URL rewriting ii. Using session object iii.Using response object iv. Using hidden fields v. Using cookies vi. Using servlet object
A.	i, ii, iii, vi
B.	i, ii, iv, v
C.	i, vi, iii, v
D.	i, ii, iii, v
Answer» B. i, ii, iv, v

32.	A deployment descriptor describes
A.	Web component response settings
B.	Web component setting
C.	Web component request objects
D.	All of the above
Answer» B. Web component setting

33.	The values of <servlet-name> and <servlet-class> in web.xml file
A.	must be same
B.	must not be same
C.	may be same
D.	None of the above
Answer» C. may be same