MIT103-B1477- MQP

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Model Question Paper

Subject Code: MIT103 Book ID: B1477

Subject Name: Object Oriented Programming

Credits: 4 Marks: 140

Section A (Compulsory)

Descriptive Questions (10 Marks each)

Answer any four Questions 4 x 10 = 40 Marks

1. A) Explain the role of digital signature in Java Security Issues [4 marks]

(Refer section 1.5 for details)

B) Explain features of Java. [6 marks]


2. A) What are the different types of control statements? [4marks]


B) How do you compile and execute a Java program? [6 marks]

(Refer figure 3.2 for details)

3. A) What is an exception? [5 marks]


B) What are the different methods under DataInputStream and DataOutputStream? [5marks]


4. A) Explain lifecycle of an Applet. [5 marks]


B) Explain lifecycle of a servlet. [5marks]

(Refer section 14.3.3 for details)

5. A) Explain the various URL objects. [5 marks]

(Refer section 13.3 for details)B) Explain the working of Bean Box? [5 marks]


6. Draw and explain the JDBC Application Architecture? [10 marks]


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Section B

Multiple Choice Questions

Part A (One Mark Questions) 50 x 1 = 50 Marks

1. Which of the following is an object encapsulated inside the System class?

A) out

B) println

C) Both A and B

D) None of the above

2. Employee emp = ______________ Employee ();Pick a suitable word from the list so

that an object of the class Employee is created.

A) object

B) class

C) run

D) new

3. What is the output for the following code: System.out.println (Hello World);

A) Shows error

B) Hello World

C) Hello World


4. _____________ provides a standard interface to common system resources.

A) new

B) API

C) SystemD) None of the above

5. Which of the following is also known as SDK:

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A) devkit

B) JVM

C) JDK


6. Which feature of Java is used to dynamically link code in a safe and expedient manner:

A) Secure

B) Distributed

C) Dynamic

D) Robust

7. Which of the following additional package is included by JDK:

A)java.awt

B) sun.addtools.debug

C)java.util

D) sun.tools.debug

8. Which among the following is not a feature of Java:

A) Portable

B) StructuredC) Distributed

D) High Performance

9. ____________ is a Java run-time system that choose to execute the JAVA Bytecode:

A) SDK

B) JDK

C) JVM


10. Which of the following operators are used to compare two values and give the results:

A) Increment and Decrement

B) Logical

C) Comparison

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D)Arithmetic

11. What is the result of the expression: 10+5*8-15/5

A) 3

B) 47

C) 7

D) 21

12. _________ is a common programming construct that is based upon a sequence of nested if:

A) switch

B) nested if

C) if-else-if ladder


13._________ statement is Javas multi-way branch statement.

A) switch

B) nested if

C) break

D) if-else-if ladder

14. Which loop always executes its body at least once, even though the condition is not true:A) for

B) do-while

C) while

D) continue

15. _________ is used to exit from a loop:

A) continue

B) quit

C) break


16. Which of the following method can be used to set the size of the buffer:

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A) ensureCapacity( )

B) length( )

C) capacity( )

D) setLength( )

17. Which of the following method returns the reversed object on which it is called:

A) insert( )

B) replace( )

C) delete( )

D) reverse( )

18. String indexes begin at:

A) 1

B) 3

C) 0

D) 2

19. Which of the following is a special operator to allocate memory:

A) New

B) Old

C) ++

D)

20. Both the String and StringBuffer classes are defined in ___________ package:

A)java.awt

B)java.io

C)java.lang

D)java.util

21. Method used to extract a single character from a String:

A) toCharArray( )

B) getChars( )

C) getBytes( )

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D) charAt( )

22. Human Being and Elephant fall under which of the following relationship:

A) Kind-Of

B) Is-A

C) Part-Of

D) Has-A

23. Which of the following allows the creation of hierarchical classifications:

A) Interface

B) Inheritance

C) Package

D) Polymorphism

24. A class member that has been declared as private will be ____________ to its class.

A) Friendly

B) Public

C) Protected

D) Private

25. Which of the following keywords is used to prevent inheritance:

A) final

B) catch

C) extends

D) super

26. Java supports ________ access specifiers.

A) 1B) 2

C) 3

D) 4

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27. __________ is used as a base class to derive specific classes of the same kind.

A) private

B) friend class

C) abstract class

D) super class

28. Writing the same code in different places, leading to unnecessary replication of code:

A) Code extensibility

B) Code redundancy

C) Code reusability


29. Which of the following blocks can be nested:

A) catch

B) finally

C) try


30. Number of finally blocks that are there for an exception-handler.

A) 1B) 2

C) 3

D) 4

31. The _________ statement takes an object of an exception class as a parameter.

A) try

B) if

C) catchD) finally

32. DataInputStream and DataOutputStream classes are:

A)Abstract streams

B) Mode streams

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C) Markable streams

D) Filter streams

33. Unicode is used to represent data such that each character is represented by:

A) 8 bits

B) 16 bits

C) 64 bits

D) 32 bits

34. Java provides ____________ to perform I/O operations at specified locations within a file:

A) InputStreamReader

B) RandomAccessFile

C) DataInputStream

D) DataOutputStream

35. Which of the following is not a method of DataInputStream class:

A) void writeInt (int v )

B) int readInt ()

C) byte readByte ()

D) char readChar ()

36. Which of the following class lays the foundation for the output class hierarchy:

A) Reader

B) InputStream

C) OutputStream


37. InputStream class method is:A) open( )

B) skip( )

C) flush( )

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D) write( )

38. The streams that are read from or written to a specific place like a disk file or memory:

A) Markable streams

B) ByteArray streams

C) Mode streams

D) Filter streams

39. Graphics class is a part of :

A)java.applet package

B)java.util package

C)java.io package

D)java.awt package

40. Which of the methods is called immediately after the init() is called:

A) destroy( )

B) start( )

C) paint( )

D) stop( )

41. Context can be retrieved using which of the following method:

A) getNum( )

B) getGraphics( )

C) getAppletContext( )

D) getText( )

42. Which of the following methods is defined by AWT Component class:

A) paint( )B) init( )

C) stop( )

D) start( )

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43. The argument temporaryFlag is set to true if the focus event is:

A) temporary

B) gained

C) lost

D) retrieved

44. _______ object is generated when the mouse is used.

A)AdjustmentEvent

B) MouseEvent

C) PaintEvent

D) TextEvent

45. Which of the following is at the top of the event class hierarchy:

A)java.awt.AWTEvent

B)java.awt.EventObject

C)java.util.EventObject


46. In Java, events are represented by:

A) ObjectsB)Anonymous classes

C) Inner classes

D) Classes

47. Which of the following class has empty methods:

A)Anonymous class

B)Adapter class

C) Nested classD) None of the above

48. The method that returns the event ID that represents the nature of the event:

A) getId( )

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B) getNature( )

C) getName( )

D) getValue( )

49. Which of the following Swing Components hierarchically extends AWT applet:

A) JTree

B) JToolTip

C) JApplet

D) JPanel

50. ____________ components allow the editing of multiline plain text.

A) Tree

B) Text area

C) Text field

D) Toggle

Part B (Two marks questions) (25*2 = 50 marks)

51. _______and _____ are advanced commands for debugging the programs available in JDK

I. upII. classes

III. methods

IV. down

A) I and II

B) I and IV

C) II and III

D) III and IV

52. _______ is a JDK command used to break for the specified exception and _________

command used to ignore when the specified exception:

I. break

II. catch

III. ignore

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IV. ign

A) I and III

B) II and III

C) II and IV


53. ______ is used to compile Java Programs into Bytecode and __________ runs the Java

Bytecode.

A)java, javac

B)javac, javah

C)javac, java


54. Choose the wrong statement regarding Keytool:

I. Manages the own public key pairs

II. Doesnot manage the private key pairs

III. Manage Security Certificates

IV. It is one of the command in JDK

A) I and IV

B)II and III

C) II and IV

D) I and III

55. The keywords __________ and __________ are reserved but not used.

I. const

II. try

III. goto

IV. volatile

A) I and IV

B) II and III

C) II and IV

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D) I and III

56. __________ provides a standard interface to common

system resources and encapsulates__________ which represents standard output

device.

I. System

II. println

III. out

IV. object

A) I and IV

B) II and III

C) II and IV

D) I and III

57. Methods that are specialized forms of regionMatches( ):

I. compareTo( )

II. startsWith( )

III. endsWith( )

IV. compareToIgnoreCase( )

A) I and IV

B) I and III

C) II and III

D) I, II and III

58. Which of the following statements is true:

I. "Foobar".endsWith("bar");

II. "Foobar".startsWith("Foo");

A) I

B) II

C) Both I and II


59. A string is ______ another string if it comes ______ the other in dictionary order.

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A) greater than, after

B) less than, before

C) equal to, after

D) equal to, before

60. Pick String Modification Methods:

I. toUpperCase( )

II. length( )

III. trim( )

IV. capacity( )

A) I and IV

B) I and III

C) II and III

D) I, II and III

61. Package is both a ______ and ______control mechanism.

I. Naming

II. Visibility

III. Scope

IV.AccessA) I and IV

B) I and III

C) II and III

D) I and II

62. Variables declared inside the interface declarations are implicitly __________ and

__________.

I. final

II. public

III. dynamic

IV. static

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A) I and IV

B) I and III

C) II and III

D) I and II

63. Which of the following methods are used to access data?

I. getResultOne()

II. getInt()

III. getFloat()

IV. getOne()

A) I and IV

B) I and III

C) II and IV

D) II and III

64. Exception Handling helps programmers develop _______ and _______ programs.

I. secure

II. robust

III. error free

IV. smallA) II and IV

B) I and II

C) II and III

D) I and IV

65. The exception object contains information about the ________ and __________ when the

exception occurred.

I. State of the programII. Variable data

III. Type of error

IV. Debugging information

A) II and IV

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B) I and II

C) I and III

D) II and III

66. close( ) method falls under which of the following class:

I. InputStream

II. OutputStream

III. Writer

IV. FileStream

A) II and IV

B) I and II

C) I and III

D) II and III

67. Which of the following are the mode streams:

I. FileInputStream

II. DataOutputStream

III. DataInputStream

IV. FileOutputStream

A) I and IV

B) II and III

C) I and II

D) I and III

68. Which of the following are the Stream classes:

I. Reader

II. DataOutputStream

III. WriterIV. FileOutputStream

A) II and IV

B) I and III

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C) I and IV

D) II and III

69. Which of the following classes convert data between the byte and Unicode character

streams:

I. InputStreamReader

II. InputStreamWriter

III. OutputStreamWriter

IV. OutputStreamReader

A) II and IV

B) I and III

C) I and IVD) II and III

70. Statements that are used to import the Containers:

I. java.awt.Window

II. java.awt.Canvas

III.java.awt.Choice

IV.java.awt.Panel

A) II and IVB) I and III

C) I and IV

D) II and III

71. DebuggerCallback interface is a template for implementing communications between:

I. Client

II. Application

III. Server

IV. Debugger

A) II and IV

B) I and III

C) I and IV

D) II and III

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72. Which of the following enables to open standard socket connections to hosts and read to

and write from those connections:

I. Socket

II. InetAddress

III. ServerSocket

IV. ClientSocket

A) II and IV

B) I and III

C) I and IV

D) II and III

73. RemoteStackVariable class has which of the following methods:

I. getValue( )

II. inScope( )

III. setValue( )

IV. getLine( )

A) II and IV

B) I and III

C) I and IID) I and IV

74. Methods used to set the values of INPUT parameters:

I. setInt( )

II. setString( )

III. setOne( )

IV. setTwo( )

A) I and IV

B) I and II

C) I and III

D) II and III

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75. Which of the following are located inside javax.swing package:

I. Utility classes

II. Data base components

III.AWT components

IV. Swing components

A) II and IV

B) I and II

C) I and IV

D) II and III

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Answer Keys (Part A & Part B)

Subject Code: MIT103 Book ID: B1477

Part - A Part - B

Q.

No.Ans. Key

Unit no. /

Page no.

Q.

No.Ans. Key

Unit no. /

Page no.

Q.

No.Ans. key

Unit no. /

Page no.

1 A 2/23 26 C 5/84 51 B 1/10

2 D 2/24 27 C 5/95 52 B 1/11

3 B 2/24 28 B 5/81 53 C 1/10

4 C 2/23 29 C 6/108 54 C 1/11

5 A 1/9 30 A 6/112 55 D 2/17

6 C 1/8 31 C 6/112 56 D 2/23

7 D 1/8 32 D 7/120 57 C 4/64

8 B 1/5 33 B 7/121 58 C 4/64

9 C 34 B 7/123 59 B 4/65

10 C 3/32 35 A 7/120 60 B 4/70

11 B 3/33 36 C 7/116 61 D 5/97

12 C 3/37 37 B 7/121 62 A 5/101

13 A 3/38 38 C 7/116 63 D 11/180

14 B 3/45 39 D 8/132 64 B 6/105

15 C 3/48 40 B 8/130 65 C 6/108

16 A 4/72 41 C 8/128 66 B 7/121

17 D 4/74 42 A 8/131 67 A 7/120

18 C 4/60 43 A 9/151 68 A 7/119

19 A 4/53 44 B 9/145 69 C 7/122

20 C 4/55 45 C 9/144 70 C 8/138

21 D 4/60 46 A 9/144 71 A 13/203

22 A 5/80 47 B 9/158 72 B 13/201

23 B 5/79 48 A 9/145 73 C 13/206

24 D 5/87 49 C 10/171 74 B 11/182

25 A 5/96 50 B 10/173 75 C 10/167

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MIT103-B1477- MQP

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