CS506 MCQ's Final Term Paper
-
- JSP ____________ action element is used to obtain a reference to an existing JavaBean object.
Select correct option:
useBean
setProperty
getProperty
None of these
Question:2
When JSP page compiled, it is translated into?
Select correct option:
Applet
Application
Servlet
Web Browser
Question:3
Hidden Forms Fields contain the information that is needed to send to the
Select correct option:
Client
Server
Both server and client
Neither server nor client
Question:4
Which of the following is used to work with javaBean to include pages at request time and
forward request to other sources?
Select correct option:
JSP action element
JSP declaration
Scriptlets
JSP expression
Question:5
To define the error page in JSP we use following tag?
Select correct option:
exception-type
error-type
error-page
exception-pageQuestion:6
setAttribute(String, Object) associates a ----------with a name.
Select correct option:
Value
Object
String
Both String and Object
Question:7
“application” is a object of
Select correct option:
ServletContext
HttpSession
ServletConfig
Both ServletConfig and HttpSession
Question:8
JSP comments are declared through following tag
Select correct option:
<%@ %>
<%-- --%>
<%! %>
<%= %>
Question:9
Which of the following is NOT true about JavaBean?
Select correct option:
It should not have any public variable.
It must be serializable.
It must not have any zero argument constructor.
Private instances must be accessed via setters/getters.
Question:10
JSP page is a ---------------document that describes how to process a request to create a response.
Select correct option:
Text-based
xml-based
Both text-based and xml-based
Neither xml-based nor Text-basedQuestion:11
From the following which is not a basic function of web-based application:
Select correct option:
Presentation
Debugging
Business Logic
Data Management
Question:12
Client is referred as a
Select correct option:
Computer user
Computer that a person is using for communication purpose
Person which carry out web surfing
None of these
Question:13
To destroy the session in Servlet we use?
Select correct option:
session.destroy()
session.invalidate()
session.end()
session.Kill()
Question:14
“application” is a object of
Select correct option:
ServletContext
HttpSession
ServletConfig
Both ServletConfig and HttpSession
Question:15
Which of the following is NOT a JSP action element?
Select correct option:
useBean
setProperty
getProperty
javaBeanQuestion:16
From the following indicators; which is added in user session to know the session time out?
Select correct option:
Sessiontimeoutindicator
SessionTimeOutIndicator
SessionTimeoutIndicator
sessionTimeOutIndicator
Question:17
From following which one is the object of JspWriter used to send output to the client.
Select correct option:
request
out
response
Both request and response
Question:18
Which of the following is NOT true about JavaBean?
Select correct option:
It should not have any public variable.
It must be serializable.
It must not have any zero argument constructor.
Private instances must be accessed via setters/getters.
Question:19
Relationship between JSP and servlets is
Select correct option:
Servlets are built on JSP semantics and all servlets are compiled to JSP pages for runtime
usage
JSP and servlets are unrelated technologies
Servlets and JSP are competing technologies for handling web requests. Servlets are
being superseded by JSP, which is preferred. The two technologies are not useful in
combination
JSPs are built on servlet semantics and all JSPs are compiled to servlets for runtime usage
Question:20
getId( ) returns the unique ID of
Select correct option:
Current session
Previous session
Next session
Both Next and Previous sessionQuestion:21
Which of the following is used to work with javaBean to include pages at request time and
forward request to other sources?
Select correct option:
JSP action element
JSP declaration
Scriptlets
JSP expression
Question:22
Packages are the way to organize files into different -------------according to their functionality,
usability as well as category they should belong to.
Select correct option:
Directories
Folders
Libraries
Both Folders and Libraries
Question:23
getAttribute(String) extracts----------- stored value from a session object
Select correct option:
Subsequently
Currently
Previously
Both Currently and Subsequently
Question:24
What is the initial contact point for handling a web request in a Page-Centric architecture?
Select correct option:
JSP page
JavaBean
servlet
HTML page
Question:25
From the following methods, which method cannot be overridden in the JSP page
Select correct option:
_jspService()
jspDestroy()
jspInit()
Both jspDestroy()and jspInit()Question:26
JSP ____________ action element is used to obtain a reference to an existing JavaBean object.
Select correct option:
useBean
setProperty
getProperty
None of these
Question:27
In JSP Instance variables and method are declared through following tag
Select correct option:
<%@ %>
<%-- --%>
<%! %>
<%= %> (not sure)
Question:28
All -----------data is kept at the application server.
Select correct option:
Dynamic
Static
Both dynamic and static
Neither Static nor Dynamic
Question:29
A java program that has some design conventions is called_________?
Select correct option:
Java servlet
JSP
JSF
JavaBean
Question:30
A cookie is a piece of ------- that a web server can store on a client’s hard disk.
Select correct option:
Text
Number
String
Both Number and StringQuestion:32
Which of the following Environment variable tells the system about the root directory of TOMCAT?
Select correct option:
JAva_HOME
CATALINA_HOME
CLASSPATH
PATH
Question:33
Which of the following statement is correct to assign maximum priority to thread “t2”?
Select correct option:
t2.setPriority(Thread.PRIORITY_MiX);
t2.setPriority(Thread.PRIORITY_MAX)
t2.setPriority(Thread.MAX_PRIORITY);
t2.setPriority(Thread.MIX_PRIORITY);
Question:34
Which of the following object contains information specific to a servlet?
Select correct option:
ServletContext
ServletConfig
ServletRequest
ServletResponse
Question:35
Which of the following range of response code signify error by server?
Select correct option:
200-299
300-399
400-499
500-599
Question:36
From the following which ID is transmitted between the client and the server
Select correct option:
Session ID
Network ID
Server ID
None of these
Question:37
Which of the following is NOT a web technoloy of Java?
Select correct option:
Servlet
JSP
ASP
JSF
Question:38
Moving session from one server to another in case of server failure is known as
Select correct option:
Session Migration
Session Tracking
Session Hijacking
Both Session Hijacking and Tracking
Question:39
Which one is used to collect data when a user navigates between web pages?
Select correct option:
Session Tracking
User Tracking
Session Migration
Both User Tracking and Session Migration
Question:40
Which of the following method allows any other thread of same priority to execute?
Select correct option:
sleep()
wait()
notify()
yield()
Question:41
From the following which session tracking technique is used when new session is started?
Select correct option:
Cookies
URL Rewriting
Both Cookies and URL Rewriting
None of these
Question:42
Which of the following object is used for sharing resources among different servlets of same
application?
Select correct option:
ServletConfig
ServletRequest
ServletResponse
ServletContext
Question:43
Which of the following interface needs to implement while creating threads?
Select correct option:
Serializable
Runnable
ActionListener
WindowListenerQuestion:44
Session Tracking is done through following techniques?
Select correct option:
Cookies
Hidden fields
URL Rewriting
Cookies, Hidden fields and URL Rewriting
Question:45
Servlets are used to
Select correct option:
Create graphics
Provide dynamic web contents which extend web servers
Develop applets
Create GUI
Question:46
Which of the following is/are not correct about Thread(s)?
Select correct option:
Light weight
Heavy weight
Share same memory
Light weight and share same memory
Question:47
From following which code can be used to create session object in the Servlet:
Select correct option:
HttpSession session = req.getSession(true);
HttpSession session = req.getSession(false);
HttpSession session = req.getSession(1);
HttpSession session = req.setSession(1);
Question:48
JVM assigns CPU to the threads based on __________.
Select correct option:
Thread priorities
System priorities
Collective priorities
Both System and Collective priorities
Question:49
Which of the following method is called only once during life cycle of Servlet?
Select correct option:
service()
init()
destroy()
start()
Question:50
HTTP is a ---------protocol.
Select correct option:
Stateless
Connectionless
Connection oriented
Both Connectionless and Stateless
Question:51
Which of the following is NOT true about HTTP?
Select correct option:
HTTP is a stateless protocol
HTTP is a request response communication model
HTTP maintains user session between successive requests.
HTTP has no built-in state management between successive requests.
Question:52
Why we use RequestDispatcher to forward a request to another resource(servlet, html, jsp), instead of
using a sendRedirect()?
Select correct option:
sendRedirect() is not supported in servlet API.
RequestDispatcher is not supported in servlet API.
RequestDispatcher is efficient and allows the server to maintain request status.
None of these not sure
Question:53
getParameters() method returns an array of strings containing the values for a specified servlet
parameter.
Select correct option:
True
False
Question:54
Which of the following is not the part of http response?
Select correct option:
Result Code
Header files
Status code
URI
Question:55
web.xml is a ___________
Select correct option:
java file
configuration file
jar file
servlet fileQuestion:56
A ______ is a small text file used by servers to store pieces of data on a client for later retrieval.
Select correct option:
session
cookie
URL rewriting
Session object
Question:57
HttpSession stores session information in
Select correct option:
File system of client
File system of server
A cookie
A session object not sure
Question:58
Which of the following is NOT a part of HTTP request?
Select correct option:
Request method
URI
Status code
Header fields
Question:59
Which of the following folder contains configuration file?
Select correct option:
classes
lib
bin
WEB-INF
Question:60
Which of the following problem occurs with lower priority threads?
Select correct option:
Race condition
Starvation
Average waiting time
Process death
Question:61
Which of the following approch is used to create threads in java?
Select correct option:
inheritance
interface
Both inheritance and interface
None of theseQuestion:62
Which of the following method needs to override while handling threads in java?
Select correct option:
init()
start()
run()
runnable()
Question:63
From the following packages which one is used to write the servlets?
Select correct option:
javax
java
java.util
java.lang
Question:64
Servlets are used to
Select correct option:
Create graphics
Provide dynamic web contents which extend web servers
Develop applets
Create GUI
Question:65
getrequest() method gets information from a client and postrequest() method posts data to a
client.
Select correct option:
False
True
Question:66
JSP scripting elements is/are
Select correct option:
Declarations
Scriptlets
expressions
All of these
Question:67
From following methods; which method is not a part of the JSP life cycle?
Select correct option:
jspInit()
jspService()
_jspService()
jspDestroy()Question:68
From the following which one is not a JSP directive?
Select correct option:
page
include
taglib
out
Question:69
To provide global control of JSP we use following tag
<%@ %> right Answer)
<%-- -%>
<%! %>
<%= %>
Question:70
javax.servlet.jsp.PageContext, is used to give a ---------point of access to many of the page
attributes.
Select correct option:
Single
Multiple
Question:71
In JSP Instance variables and method are declared through following tag
Select correct option:
<%@ %>
<%-- --%>
<%! %>
<%= %>
Question:72
Which of the following approach is also called page-with-bean approach.
Select correct option:
Page-Centric approach
MVC Model1
MVC Model2
MVC Model3Question:73
A separate controller is a part of which of the following approach?
Select correct option:
Page-Centric approach
MVC Model1
MVC Model2
MVC Model3
Question:74
From following tags, which one is the Special JSP tag?
Select correct option:
<jsp: .…. />
<%! %>
<%= %>
<%@ %>
Question:75
JSTL stands for __.
JavaServer Pages Standard Tag Library
JavaSrvlet Pages Standard Tag Library
Java Pages Standard Tag Library
Question:76
JSP page is a ---------------document that describes how to process a request to create a response.
Text
XML
Both
None
Question:77
A java program that has some design conventions is called
java sevlet
jsp
jsf
javabeanQuestion:78
Which of the following is not included in simple tag while creating JSP custom tags?
Select correct option:
Start of tag
End of tag
Attributes
None of these
Question:79
Which of the following represent state of the components in MVC?
Model
View
Control
Both Model and View
Question:80
A user defined component that is used to perform certain action is called______.
Select correct option:
Built-in Tags
JSP action element
Custom tag not sure
jsp:useBean
Question:81
A Tier represents the _______ view of application.
Select correct option:
Physical
Logical
Biological
Local
Question:82
Which of the following is the best choice as a controller in MVC Model Architecture?
Select correct option:
Java
Servlet
JavaScript
JSPQuestion:83
. The HTTP response values in the range __________ specify that the request was successful.
100-199
200-299
300-399
400-499
Question:84
With the help of _____________ we can better organize our files into different directories.
Classes
Interfaces
Session
Packages
Question:85
. Entire JSP page gets translated into a servlet ____________.
Once (pg 323)
Every time when it is accessed
Every time when the page is refreshed
Every time when the browser is restarted
Question:86
A bean class ___________ have a zero argument constructor.
Can
Can’t
Must (pg 356)
Shouldn’t
Question:87
. Layers represent the _____________ view of application.
Physical
Logical (pg 435)
External
None of these
Question:88
High coupling makes classes difficult or impossible to reuse because _____________.
They are independent of other classes
They depend on so many other classes
They have limited functionality
They are not properly implemented
Question:89
_____________ is a standard web based application framework.
JavaServlet
JSP
JSF
Question:90
Which of the following is a correct order for Bean scope in JSP page from most visible to least
visible?
application, session, request, page
page, request, session, application
session, page, request, application
application, session, page, request
Question:91
The dot operator in Expression Language is typically used for accessing the --------------------of
an object.
Properties (pg 458)
Elements
Values
Attributes
Question:92
Initialization parameters of a servlet are defined in __________ file.
html
JSP
web.xml (pg 275)
servlet
Question:93
On every request from the client, the server creates a new ________ and calls the _______
method.
thread, service()
thread, init()
process, service()
process, init()
Question:94
. By ____________, the original request can be forwarded to the next servlet.
request dispatching
response redirection
both request dispatching and response redirection
None of the given options
Question:95
Which of the following is NOT appropriate for Page-centric approach?
The maintenance of the application becomes a nightmare.A lot of code is also get duplicated.
Scaling of such kind of application is easy. (pg 397)
The code becomes a mixture of presentation, business and data access logic.
Question:96
Which of the following ‘statement’ object is used for executing precompiled SQL statements?
Statement
PreparedStatement (pg 147)
CallableStatement
None of the given options
Question:97
RPC stands for
Remote Personal Computer (RPC)
Remote Procedure Client
Remote Procedure Calls (RPC).
None of the given options
Question:98
. UDDI stands for
Universal Description, Discovery & Integration (UDDI) (pg490)
Universal Data, Discovery & Integration (UDDI)
Universal Data, Database & Integration (UDDI)
None of the given options
Question:99
Managed Beans have _______ Model
Declarative
Sequential
Iterative
None of the given options (pg465) Managed beans represent the data model
Question:100
DataBaseMetaData object can be derived from ___________ object.
ResultSet
Connection (pg165)
Statement
ResultSetMetaData
Question:101
DSN stands for ___________.
Domain System Name
Data Source Name (pg150)
Database System Name
Database Simple NameQuestion:102
From following functions which function is invoked first?
paint()
paintComponet( )
paintBorder( )
paintChildern( )
Question:103
There is/are _____ form(s) of response redirection.
1
2 (pg 270)
3
4
Question:104
Expression is a code fragment which returns ___________.
Integer
String (pg326)
Depends on the expression
Nothing
Question:105
The dot operator in Expression Language is typically used for accessing the --------------------of
an object.
Properties (pg458)
Elements
Values
Attributes
Question:106
The sleep(int time) method causes the currently executing thread to wait for the time specified
in --------------
Milliseconds (pg221)
Nenoseconds
Seconds
Minutes
Question:107
Java was developed in………
1990
1994
1995
1996Question:108
CREATE TABLE, DROP TABLE, and ALTER TABLE etc are -----------.
DML statements
DDL statements(pg144)
DCL statements
None of given options
Question:109
Extra sheet can be appended to URL using _________
i. Extra path information
ii. Added Parameters
iii. Custom Change
iv. All of the given options
Question:110
Initialization ________ of web application are also called ______________
i. Parameters, Context Attributes not sure
ii. Context Attributes, Parameters
iii. Parameters, Variables
iv. Context Attributes, Variables
Question:111
J2EE is developed for which of the following application
i. Very large applications
ii. GUI based applications
iii. Mobile devices
iv. Network based applications
Question:112
ODBC stands for ______________
i. Open database communication
ii. Open database connection
iii. Open database connectivity
iv. Open database Commission
Question:113
Which of the following command is used to compile Java code?
i. java filename
ii. javac filename.java
iii. javac filename
iv. java filename.javaQuestion:114
What if the main method is declared as private?- The program does not compile
- The program compiles but does not run
- The program compiles and runs properly
- The program throws an exception on compile time
Question:115
Java program code is compiled into form called - Machine code
- native Code
- Byte Code
- Source Code
Question:116
A top level class without any modifier is accessible to - any class
- any class within the same package
- any class within the same file
- any subclass of this class
Question:117
Overloading is _______ whereas overriding is _____ - Run time binding, compile time binding
- Late binding, compile time binding
- Compile time binding, run time binding
- Run time binding, late time binding
Question:118
Static methods only access ___ - instance variable
- instance method
- static variables and methods
- both static and instance members
Question:119
Which of the following is modifier is provided by default if no access is written explicitly? - public
- Private
- Protected
- Default
Question:120
A top level class may have only the following access modifier. - Package
- Private
- Protected
- Public
Question:121
Which of the following is used for inheritance in java?- implements
- extends
- : (colon)
- inherit
Question:122
A collection can store … - Homogenous objects
- Heterogeneous objects
- Objects as well as primitive values
- At most 100 objects
Question:123
Window frame and dialog use ________ as their default layout. - Border layout
- Flow layout
- GridBag layout
- Grid layout
Question:124
There are _________ types of exceptions in Java - 2
- 3
- 4
- 5
Question:125
Which of the following belongs to a category of checked exception? - Null Pointer exception
- IOException
- Array index out of bounds
- NumberFormatException
Question:126
Which of the following exception belongs to a category of un-checked exception? - IOException
- Null Pointer exception
- AWTException
- ClassNotFoundException
Question:127
All the exceptions and errors in java are inherited from _____ class.- Exception
- Error
- Throwable
- IOException
Question:128
Exceptions must be handled while handling files otherwise it may lead to _____ - Logical error
- Syntax error
- Run-time error
- No error
Question:129
Which of the following package needs to be import while handling files? - java.util
- java.io
- java.awt
- javax.swing
Question:130
When defining a method you must include a/an … to declare any exception that
might be thrown but is not caught in the method: - try block
- finally block
- catch block
- throws clause
Question:131
Which of the following syntax is used to attach an input stream to console ? - FileReader fr = new FileReader(’ input.txt ') ;
- FileReader fr = new FileReader(FileDescriptor.in);
- FileReader fr = new FileReader(FileDescriptor);
- FileReader fr = new FileReader(console);
Question:132
The classes which contain the word _____ are byte oriented streams. - Reader
- Writer
- Stream
- Byte
Question:133
Which of the following stream read/write data in the form of bytes?- FileReader
- FileWriter
- PrintWriter
- FileInputStream
Question:134
Which of the following is called ’ pure abstract class ’ ? - Concrete class
- Wrapper class
- Interface
- Abstract class with no abstract method
Question:135
Which of the following is true about abstract class? - An abstract class must have all methods declared as abstract methods.
- A class must have at least one abstract method to be an abstract class.
- A class without any abstract method can be declared as abstract class.
- An instance of abstract class can be created.
Question:136
Which of the following stream is a filter stream? - FileWriter
- FileReader
- BufferedReader
- All of given options
Question:137
An instance of abstract class cannot be created. - TRUE
- FALSE
Question:138
Anabstractclass ---------------instantiated. - Cannot be
- Can be
- Must
- None of these
Question:139
The relationship between class and interface is called ________ - ’ Is a ’ relationship
- ’ Has a ’ relationship
- ’ Responds to ’ relationship
Question:140
BorderLayout is the default layout manager for a JFrame content pane- TRUE
- FALSE
Question:141
Which of the following is a general purpose container? - JFrame
- Dialog
- JPanel
- JApplet
Question:142
JPanel and Applet use ________ as their default layout. - Flow layout
- Border layout
- Grid layout
- GridBag layout
Question:143
Which of the following is true about AWT and SWING components? - AWT components creates a process whereas SWING component creates a
thread. - AWT components creates a thread whereas SWING component creates a
process. - Both AWT and SWING component creates a process.
- Both AWT and SWING component creates a thread.
Question:144
Which of the following function will be used to register event handler with events
generator (button)? - addAction()
- addActionListener()
- addListener()
- registerListener()
Question:145
Event source can have --------- listeners registered on it. - Single
- Double
- Triple
- Multiple
Question:146
If a class needs to handle events generated by button then which of the following
interface a class needs to implement?- ComponentListener
- KeyListener
- MouseListener
- ActionListener
Question:147
Which of the following function is declared in MouseMotionListener interface?
public void mousePressed (MouseEvent me); - public void mouseDragged (MouseEvent me);
- public void mouseClicked (MouseEvent me);
- public void mouseEntered (MouseEvent me);
Question:148
WindowListener interface contains _______ methods. - Four
- Six
- Seven
- Eight
Question:149
Mouse events can be trapped for ________ GUI component. - JPanel
- JFrame
- JButton
- All of given
Question:150
Adapter classes have been defined for listener interfaces except ______ interface. - MouseListener
- KeyListener
- WindowListener
- ActionListener
Question:151
Which of the following package needs to import while interacting with relational
database? - java.io
- java.sql
- javax.swing
- java.awt
Question:152
Which of the following method is used to execute SELECT SQL statements?- executeUpdate(sql);
- ExecuteUpdate(sql);
- executeQuery(sql);
- ExecuteQuery(sql);
Question:153
Which of the following method is used to execute INSERT, UPDATE and Delete SQL
statements? - executeQuery(sql);
- ExecuteQuery(sql);
- executeUpdate(sql);
- ExecuteUpdate(sql);
Question:154
Which of the following statement object is used to execute stored procedures? - Statement
- PreparedStatement
- CallableStatement
- None of given options
Question:155
HahMap takes key as a/an _________ - Object
- Array
- Primitive value
- Function
Question:156
A …defines the way and method of communication between two parties - Compiler
- Protocol
- Tool
- Technique
Question:155
To create DataBaseMetaData object we write following line of code
DataBaseMetaData db = con.getMeataData(); - ResultSetMetaData rsmd = rs.getMetaData();
- ResultSetMetaData rsmd = rs.setMetaData();
- DataBaseMetaData db = con.setMeataData();
Question:156
Which of the following are passed as an argument to the paint () method:- A Canvas object2. A Graphics object3. An Image object4. A paint objectQuestion:157
The code below draws a line. What color is the
line?g.setColor(Color.red.green.yellow.red);g.drawLine(0, 0, 100,100); - Red
- Green
- Yellow
- Black
Question:158
Which of the following methods are invoked by the AWT to support paint and repaint
operations? - paint( )
- repaint( )
- draw( )
- redraw( )
Question:159
If a super class method is protected then overriding method _________ - must be protected
- must be public
- must be private
- may be either protected or public
Question:160
Socket is a --------------communication channel between hosts. - Uni-directional
- Bi-directional
- Multi-directional
- None of these
Question:161
You can ---------to a network using sockets. - Read
- Write
- Read/Write
- None of these
Question:162
A serializable class must implement the method(s)…- readObject and writeObject
- Either readObject or writeObject, or both, depending upon the desired behavior
- No need to implement any method:
- None of the given option
Question:163
Aside from the Scanner class, which of the following class/es can be used for text file
file input - ObjectInputStream
- BufferedReader
- StringTokenizer
- None of these
Question:164
In which of the following application we do not need to maintain sessions - Cause registering web application
- Web based shopping carts
- Web reputation systems
- Windows shopping systems