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# CS506 Grand Quiz + Mid Term Quiz Fall 2020 Prepartion Material Due Date: 27-12-2020

CS506 Grand Quiz + Mid Term Quiz Fall 2020 Prepartion Material Due Date: 27-12-2020

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# CS506 GRAND QUIZ 27 DECEMBER 2020||CURRENT GRAND QUIZ CS506

CS506 Grand Quiz Fall 2020 (Current Midterm Papers)

CS506 Grand Quiz Fall 2020 | 27-12-2020

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CS506 Grand Quiz Solution Fall 2020 | VU |Web Design and Development

# CS506 Grand Quiz Solved fall 2020

#Cs506GrandQuiz #Cs506GrandQuizSolution
Cs506 Grand Quiz Solution 2020 Concept Building

CS506 Web Design and Development Grand Quiz (Current Midterm Papers) Spring 2020

CS506 Grand Quiz Solved Spring 2020

28-06-2020

Credit: MC100405123

CS506- Web Design and Development (Session - 1)

Question No: 1 ( Marks: 1 ) - Please choose one
If we remove static from main then program _
►Program cannot compile
►Program will compile and work properly
►Run time errors
►Exception throws in main

Question No: 2 ( Marks: 1 ) - Please choose one
If we remove String array from main then program
►Program cannot compile
►Program will compile and work properly
Run time errors
►Exception throws in main

Question No: 3 ( Marks: 1 ) - Please choose
oneJava developed in
►1990
1995
►1997
►2000

CS506- Web Design and Development (Session - 2)

Question No: 1 ( Marks: 1 ) - Please choose one
Which of the following methods are invoked by the AWT to support paint and repaint operations?
► paint( )
► repaint( )
► draw( )
► redraw( )

Question No: 2 ( Marks: 1 ) - Please choose one
When defining a method you must include a to declare any exception that might be thrown but is
not caught in the method.
► try block
► finally block
► catch block
► throws-clause

Question No: 3 ( Marks: 1 ) - Please choose one
Aside from the Scanner class, which of the following classes can be used for text-file file input?
► ObjectInputStream
► StringTokenizer
► None of these

Question No: 4 ( Marks: 1 ) - Please choose one
Which of the following statements is true regarding Vectors with no specified base type?
► A base type is needed, because Java needs to know how to allocate memory.
► No base type is needed, because Java will use the Object class as a base type.
► If a base type is not specified the code will not compile.
► No base type is needed because Vectors default to storing String objects.

Question No: 5 ( Marks: 1 ) - Please choose one
A serializable class must implement the method(s) .
► Either readObject or writeObject, or both, depending upon the desired behavior
► No need to implement any method
► None of the given option

Question No: 6 ( Marks: 1 ) - Please choose one
You can ---------to a network using sockets.
► Write
► None of these

Question No: 7 ( Marks: 1 ) - Please choose one
Socket is a -------------- communication channel between hosts.
► Uni-directional
► Bi-directional (Page 211)
► Multi-directional
► None of these

Question No: 8 ( Marks: 1 ) - Please choose one
Which of the following are passed as an argument to the paint ( ) method?
► A Canvas object
A Graphics object
► An Image object
► A paint object

Question No: 9 ( Marks: 1 ) - Please choose one
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 No: 10 ( Marks: 1 ) - Please choose one
To create DataBaseMetaData object we write following line of code

Question No: 11 ( Marks: 1 ) - Please choose one
Event source can have ----------listeners registered on it.
► Single
► Double
► Triple
Multiple (Page 125)

Question No: 12 ( Marks: 1 ) - Please choose one
An abstract class---------------- instantiated.
► Can’t be (Page 96)
► Can be
► Must
► None of these

Question No: 13 ( Marks: 1 ) - Please choose one
A defines the way and method of communication between two parties.
► Compiler
Protocol (Page 242)
► Tool
► Technique

Question No: 14 ( Marks: 1 ) - Please choose one
What if the static modifier is removed from the signature of the main method?
► 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 No: 15 ( Marks: 1 ) - Please choose one
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 No: 16 ( Marks: 1 ) - Please choose one
A member variable or method prefixed by the protected access modifier can be accessed:
► Within the same class
► Within the sub-class
► Within the same package
All of the above

MIDTERM EXAMINATION
Spring 2020
CS506- Web Design and Development (session-3)

Question No: 1 ( Marks: 1 ) - Please choose one
In Java a final class must be sub-classed before it.
► True
► False

Question No: 2 ( Marks: 1 ) - Please choose one
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 No: 3 ( Marks: 1 ) - Please choose one
A top level class may have only the following access modifier.
► Package
► Private
► Protected
► Public

Question No: 4 ( Marks: 1 ) - Please choose one
In Java an abstract class cannot be sub-classed
► True
► False

Question No: 5 ( Marks: 1 ) - Please choose one
Given a one dimensional array arr, what is the correct way of getting the number of elements in arr
► arr.length
► arr.length – 1
► arr.size – 1
► arr.length()

Question No: 6 ( Marks: 1 ) - Please choose one
When recursive method is called to solve a problem, the method actually is capable of solving only the simpler
case(s), or base case(s).
True
► False

Question No: 7 ( Marks: 1 ) - Please choose one
Which of these are valid declarations for the main method?
► public void main();
► public static void main(String args[]);
► static public void main(String);
► public static int main(String args[]);

Question No: 8 ( Marks: 1 ) - Please choose one
Map interface is derived from the Collection interface.
► True
► False

Question No: 9 ( Marks: 1 ) - Please choose one
In Java, which of these classes implement the LayoutManager interface?
► RowLayout
► ColumnLayout
► GridBagLayout
► FlowLayoutManager

Question No: 10 ( Marks: 1 ) - Please choose one
BorderLayout is the default layout manager for a JFrame’s content pane
► True
► False

MIDTERM EXAMINATION
Spring 2020
CS506- Web Design and Development (Session 1)

Question No: 1 ( Marks: 1 ) - Please choose one
You want a class to have access to members of another class in the same package. Which is the most restrictive
access that accomplishes this objective?
► public
► private
► protected
► transient
► default access

Question No: 2 ( Marks: 1 ) - Please choose one
In Java garbage collection is done by
► JVM (Java Virtual Machine)
► Programmer
► Both JVM (Java Virtual Machine)and Programmer
► OS (Operating System)
► None of given

Question No: 3 ( Marks: 1 ) - Please choose one
Which of following can be thrown using the throw statement?
► Error
► Throwable
Exception
► RuntimeException
► All of Given

Question No: 4 ( Marks: 1 ) - Please choose one
is/are the JSP Implicit Object(s).
► session
► application
► config
► All of Given
► None of Given

Question No: 5 ( Marks: 1 ) - Please choose one
JavaBeans are?
► A special Java class file
► Servlets
► Applets
► A Special form of JSP
► None of Given

Question No: 6 ( Marks: 1 ) - Please choose one
An expression tag contains a scripting language expression that is evaluated.
► True
► False

Question No: 7 ( Marks: 1 ) - Please choose one
A final class can't be extended.
► True
► False

Question No: 8 ( Marks: 1 ) - Please choose one
ServletConfig defines a set of methods that a servlet uses to communicate with its servlet container.
► True
► False

Question No: 9 ( Marks: 1 ) - Please choose one
A method can not be made final until whole class is made final.
► True
► False

Question No: 10 ( Marks: 1 ) - Please choose one
Servlet session and JSP session have different abilities.
► True
► False

CS506- Web Design and Development
Some other MCQ’s & quizzes

1 - 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

2 - Java program code is compiled into form called
►Machine code
►native Code
Byte Code (Page 16)
►Source Code

3 - 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

► Run time binding, compile time binding
► Late binding, compile time binding
► Compile time binding, run time binding
► Run time binding, late time binding

5 - Static methods only access
► instance variable
► instance method
static variables and methods
► both static and instance members

6 - Which of the following is modifier is provided by default if no access is written explicitly?
► public
► Private
► Protected
► Default

7 - A top level class may have only the following access modifier.
► Package
► Private
► Protected
► Public

8 - Which of the following is used for inheritance in java?
►implements
►extends
: (colon)
► inherit

9 - A collection can store..........
► Homogenous objects
► Heterogeneous objects
► Objects as well as primitive values
► At most 100 objects

10 - Which of the following syntax is used to attach an input stream to console?

11 - Window frame and dialog use as their default layout.
► Border layout
► Flow layout
► GridBag layout
► Grid layout

12 - There are types of exceptions in Java
► 2 (Page 72)
► 3
► 4
► 5

13 - Which of the following belongs to a category of checked exception?
► Null Pointer exception
► IOException
► Array index out of bounds
► NumberFormatException

14 - Which of the following exception belongs to a category of un-checked exception?
► IOException
► Null Pointer exception
► AWTException
► ClassNotFoundException

15 - All the exceptions and errors in java are inherited from class.
► Exception
► Error
► Throwable
► IOException

16 - Exceptions must be handled while handling files otherwise it may lead to
► Logical error
► Syntax error
► Run-time error (Page 70)
► No error

17 - Which of the following package needs to be import while handling files?
► java.util
► java.io
► java.awt
► javax.swing

18 - 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

19 - The classes which contain the word are byte oriented streams.
► Writer
► Stream (Page 87)
► Byte

20 - Which of the following stream read/write data in the form of bytes?
► FileWriter
► PrintWriter
► FileInputStream (Page 87)

21 - An instance of abstract class cannot be created.
► TRUE
► FALSE

22 – An abstract class---------------instantiated.
► Cannot be
► Can be
► Must
► None of these

23 - The relationship between class and interface is called
► ' Is a ' relationship (Page 98)
► ' Has a ' relationship
► ' Responds to ' relationship
► None of the given options

24 - Which of the following is called ' pure abstract class ' ?
► Concrete class
► Wrapper class
► Interface (Page 98)
► Abstract class with no abstract method

25 - Which of the following is called ' pure abstract class ' ?
► Concrete class
► Wrapper class
► Interface (Page 98)
► Abstract class with no abstract method

26 - 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.

27 - Which of the following stream is a filter stream?
► FileWriter
► All of given options

28 - JPanel and Applet use as their default layout.
► Flow layout
► Border layout
► Grid layout
► GridBag layout

29 - Which of the following is true about AWT and SWING components?
► AWT components create a process whereas SWING component creates a thread.
► AWT components create a thread whereas SWING component creates a process.
► Both AWT and SWING component creates a process.
► Both AWT and SWING component creates a thread.

30 - BorderLayout is the default layout manager for a JFrame content pane
► TRUE
► FALSE

31 - Which of the following is a general purpose container?
► JFrame
► Dialog
► JPanel
► JApplet

32 - Border layout divides the area into regions
► 3
► 4
► 5 (Page 113)
► 6

33 - Which of the following function will be used to register event handler with events generator
(button)?
► registerListener()

34 - Event source can have----------listeners registered on it.
► Single
► Double
► Triple
► Multiple (Page 125)

35 - 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 (Page 122)

36 - Which of the following function is declared in MouseMotionListener interface?
► public void mousePressed (MouseEvent me);
public void mouseDragged (MouseEvent me); (Page 130)
► public void mouseClicked (MouseEvent me);
► public void mouseEntered (MouseEvent me);

37 - Window Listener interface contains methods.
► Four
► Six
► Seven (Page 133)
► Eight

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