Object Oriented Programming (CS304)

1. In C++, which of the following keywords works only with constructors?

   1. const
   2. static
   3. explicit
   4. virtual

2. In case of private inheritance, private members of base class will be ________ in derived class.

   1. private
   2. public
   3. protected
   4. hidden

3. In resolution order compiler search firstly ________.

   1. Generic Template
   2. Partial Specialization
   3. Complete Specialization
   4. Ordinary function

4. In polymorphism, messages can be interpreted in different ways depending upon the ________ class.

   1. base
   2. derived
   3. sender
   4. receiver

5. What is a class?

   1. A class is a section of computer memory containing objects
   2. A class is a section of the hard disk reserved for object oriented programs
   3. A class is the part of an object that contains the variables
   4. A class is a description of a kind of object

6. When derived class has user defined assignment operator.

   1. Compiler itself calls base class assignment operator.
   2. Compiler itself calls base class copy constructor.
   3. Compiler itself calls base class default constructor.
   4. Compiler does nothing.

7. Which of the following is True about class?

   1. It is a mechanism in C++ to realize objects in a program.
   2. It is concrete implementation of objects in C++
   3. It is used to create new types in C++ according to our requirement
   4. All of the given

8. In ________, Base class can't always be replaced by the derived class.

   1. Aggregation
   2. Inheritance
   3. Specialization
   4. Extension

9. Generalization is ________ approach.

   1. Bottom-up
   2. Top-bottom
   3. Right-Left
   4. Left-Right

10. ________ remain in memory even when all objects of a class have been destroyed.

    1. Static Variables
    2. Instance Variables
    3. Primitive Variables
    4. None of the given

11. A template provides a convenient way to make a family of

    1. variables and data members
    2. functions and classes
    3. classes and exceptions
    4. programs and algorithms

12. Which of the following is the correct syntax of declaring static variable "count" of type int?

    1. static count int;
    2. static int count;
    3. int static count;
    4. int count static;

13. Which of the following statements best describes the Constructor?

    1. Constructor is used to modify constant data members of the class.
    2. Constructor is used to delete the objects of a class.
    3. Constructor is used to initialize the data members of a class.
    4. All of the given

14. Mermaid is an example of:

    1. Single inheritance
    2. Polymorphism
    3. Specialization
    4. Multiple Inheritance

15. The default inheritance mode is,

    1. Public inheritance
    2. Protected inheritance
    3. Private inheritance
    4. None of the given

16. Suppose str1, str2 and str3 are objects of class String. Choose appropriate declaration of overloaded assignment operator for the following statement to work correctly.

    1. void operator =(const String &);
    2. String& operator =(const String &);
    3. String& overload =(const String &);
    4. void op =(const String &);

17. In order to make any function constant, keyword const is placed at the ________ of the parameter list.

    1. Beginning
    2. Middle
    3. End
    4. None of the given

18. In operator overloading, which of the following operator takes one or no argument.

    1. ++
    2. *
    3. %
    4. <<

19. In case when we define the function outside the class then we must use the keyword ________ to make the function inline.

    1. requestin
    2. inlineout
    3. inline
    4. defineinline

20. A pure virtual function is a virtual function that

    1. causes its class to be abstract.
    2. returns nothing.
    3. is used in a derived class.
    4. takes no arguments.

21. Which of the following operators operate on one operand?

    1. Binary Operators
    2. Unary Operators
    3. Ternary Operator
    4. All of the given

22. If you have three classes in a C++ program A, B, and C where class A inherits from class B, then class ________ contains all the characteristics of class ________.

    1. B, A
    2. A, B
    3. A, C
    4. B, C

23. In which of the following OOP paradigm objects cannot exist independently?

    1. Polymorphism
    2. Inheritance
    3. Aggregation
    4. Composition

24. How many entities are there in the following scenario?
    Ali lives in the house that is near the tree and he also drives his car.

    1. 1
    2. 2
    3. 3
    4. 4

25. In C++, which of the following operator can only be overloaded as a member function of the class?

    1. Equality Operator: ==
    2. Inequality Operator: !=
    3. Function Operator: ()
    4. Stream Extraction Operator: >>

26. In C++ by default access of classes is ________.

    1. Private
    2. Protected
    3. Public
    4. None of the given

27. Consider the code below,
    class class1{
    protected:
    int i;
    };
    class class2 : private class1 {
    };
    
    Then int member i of class1 is ________ in class2.

    1. public
    2. protected
    3. private
    4. None of the given

28. How can we differentiate between constructors and destructors?

    1. Destructors have a return type but Constructors do not have return type.
    2. Destructors can't be defined by the programmer, but Constructors can be defined by the programmer.
    3. Destructors are preceded with a tilde (~) symbol, and constructors are not preceded with any symbol.
    4. Destructors are exactly same as Constructors in syntax.

29. In case of protected inheritance, public members of base class will be ________ in derived class?

    1. private
    2. public
    3. protected
    4. hidden

30. We can have ________ type of member functions in a class.

    1. Public
    2. Private
    3. Protected
    4. All of the given

31. Which of the following is TRUE.

    1. Derived class pointer can be used as Base class pointer
    2. Base class pointer can be used as Derived class pointer
    3. Both of these options
    4. None of the given

32. If there is a pointer p to objects of a base class , and it contains the address of an object of a derived class, and both classes contain a virtual member function, ding(), then the statement p->ding(); will cause the version of ding() in the ________ class to be executed.

    1. base
    2. derived
    3. virtual
    4. implemented

33. The other name of specialization is ________.

    1. Restriction
    2. Extension
    3. Dependency
    4. Subtyping

34. ________ Binding means that target function for a call is selected at compile time.

    1. Static
    2. Dynamic
    3. Automatic
    4. None of the given

35. How the information hidden within an object can be accessed?

    1. Through its interface
    2. Through its private data members
    3. Through its private member functions
    4. Through both public and private members

36. The other name of specialization is ________.

    1. Restriction
    2. Extension
    3. Dependency
    4. Subtyping

37. In expression c1*c2+c3-c4 which of the following will be executed in first order?

    1. c1*c2
    2. c2+c3
    3. c3-c4
    4. c1-c4

38. In case of public inheritance, protected members of base class will be ________ in derived class.

    1. private
    2. public
    3. Protected
    4. hidden

39. A Child class can call constructor of its parent class through,

    1. Its constructor initialization list
    2. Its constructor body
    3. Both from its constructor initialization list or body
    4. Can not call the constructor of its parent class

40. Consider the following code segment:
    
    class test
    {
    int a;
    int b;
    int c;
    public:
    test():b(5).c(a).a(b){}
    }
    
    What will the value of variables a, b, and c after instantiating an object of above class?

    1. 5, 5, 5
    2. 5, Junk value, 5
    3. Junk value, 5, Junk value
    4. Junk value, 5, 5

41. Which of the following classes are used by Amphibious vehicle to inherit characteristics?

    1. Land Vehicle
    2. Water Vehicle
    3. Both Land & Water Vehicle
    4. None of the given

42. A good model is ________ related to a real life problem.

    1. Loosely
    2. Openly
    3. Closely
    4. Not

43. How many objects are involved in the N-ary association?

    1. More than 1
    2. More than 2
    3. More than 3
    4. More than 4

44. Insertion operator is ________ associative.

    1. Right to Left
    2. Left to Right
    3. Left to Left
    4. Right to Right

45. Static casting is,

    1. Implicit way of calling base class functions from derived class
    2. Explicit way of calling base class functions from derived class
    3. Both of the given
    4. None of the given

46. Which of the following is True about Destructor?

    1. It is used to free memory that is allocated through dynamic allocation.
    2. Free memory allocated using new operator by over self in destructor.
    3. It is used to perform house keeping operations.
    4. All of the given

47. Class is blueprint of ________.

    1. Interface
    2. Class
    3. Objects
    4. Model

48. Methodologies to the development of reusable software relate to ________.

    1. Structure programming
    2. procedural programming
    3. generic programming
    4. None of the given

49. What is meant by multiple inheritance?

    1. Deriving a base class from derived class
    2. Deriving a derived class from base class
    3. Deriving a derived class from more than one base class
    4. None of the given

50. Defining a function in class body, the compiler treats that function as:

    1. User defined function
    2. Static function
    3. Recursive function
    4. Inline function

51. Assignment operators are:

    1. Left associative
    2. Right associative
    3. Left and right associative
    4. Non associative

52. Which of the following is NOT casting operator in C++ standard?

    1. static_cast
    2. var_cast
    3. dynamic_cast
    4. reinterpret_cast

53. Which of the following is a strong relationship?

    1. Inheritance
    2. Composition
    3. Association
    4. Polymorphism

54. Which of the following concept is more close to encapsulation?

    1. Exception Handling
    2. Inheritance
    3. Polymorphism
    4. Information Hiding

55. Consider the code below,
    class class1{
    public:
    int i;
    };
    class class2 : public class1 {
    };
    
    Then int member i of class1 is ________ in class2.

    1. public
    2. protected
    3. private
    4. None of the given

56. Consider the statement "room has chair" Which of the following type of association exists between room and chair?

    1. Inheritance
    2. Composition
    3. There is no association
    4. Aggregation

57. Suppose we have defined derived class copy constructor but have not defined base class copy constructor then compiler will,

    1. Use base class default constructor
    2. Generate base class copy constructor itself
    3. Use base class assignment operator
    4. None of the given

58. Suppose for a class String, assignment operator is overloaded with following declaration.
    void operator =(const String &);
    What will happen when we will write following statement in main()?
    str1 = str2 = str3;
    Where, str1, str2 and str3 are objects of class String.

    1. Program will compile successfully.
    2. Compiler will generate compile time error.
    3. Run time error will be generated.
    4. None of the given

59. How many objects of a given class may be constructed in an application?

    1. Only one per constructor.
    2. As many as the application asks for
    3. Only one per class
    4. One object per variable

60. In C++ generic programming is done using ________.

    1. Procedures
    2. Packages
    3. Templates
    4. None of the given

61. In C++, Composition is a relationship between ________ and ________ objects.

    1. Parent, child
    2. Base, derived
    3. Whole, part
    4. All of the given

62. Choose correct declaration of overloaded stream insertion operator for class String as non-member friend function.

    1. friend ostream & operator << ();
    2. friend void & operator << (ostream & os);
    3. friend void operator << (const String & rhs);
    4. friend ostream & operator << (ostream & os, const String & s);

63. Abstraction provides information according to ________.

    1. User perspective
    2. Owner perspective
    3. Random information
    4. All information

64. Function overriding is done in context of,

    1. Single class
    2. Single derived class
    3. Single base class
    4. Derived and base class

65. A template argument is preceded by the keyword ________.

    1. vector
    2. class
    3. template
    4. type*

66. What is the output of the following code?
    
    int main()
    {
    int const x = 10;
    cout << ++x;
    return 0;
    }

    1. 10
    2. 11
    3. Error
    4. None of the given

67. We can access a private static variable through:

    1. Static data member
    2. Static member function
    3. Global data member
    4. None of the given

68. ________ defines the order of evaluation of an operator in an expression.

    1. Operator Associativity
    2. Operator Precedence
    3. Arity of Operators
    4. None of the given

69. Which of the following can be the attribute of an object "Ali"?

    1. Eat
    2. Walk
    3. Sleep
    4. Address

70. The ________ tells the compiler what task the function will be performing.

    1. Function declaration
    2. Function calling
    3. Function definition
    4. None of the given

71. ________ is represented by a line with an unfilled diamond head towards the container.

    1. Inheritance
    2. Association
    3. Aggregation
    4. Composition

72. The overloaded '-' operator for Complex class will be called with reference to ________ in the following statement
    Complex C3 = C1 - C2;

    1. Complex
    2. C1
    3. C2
    4. C3

73. In Protected Inheritance the public members of base class become ________ in derived class.

    1. Public
    2. Private
    3. Protected
    4. None of the given

74. Static Data Member is declared ________.

    1. Inside the class
    2. Outside the class
    3. Inside main() method
    4. None of the given

75. Compiler generated copy constructor performs ________.

    1. Shallow copy
    2. Deep copy
    3. Both Shallow and Deep copy
    4. None of the given

76. Subtyping means that derived class is behaviorally ________ with the base class.

    1. Same
    2. Compatible
    3. Different
    4. Incompatible

77. Which of the following can be the behavior of an object "Usman"?

    1. Name
    2. Age
    3. Address
    4. Eat

78. "Student registers Course and Teacher teaches the Course." is an example of:

    1. Binary Association
    2. Two way Association
    3. Ternary Association
    4. N-ary Association

79. Identify the abstract class from the given statement:
    
    "Vehicle class is base class. Bus, Car, and Truck are derived classes"

    1. Vehicle
    2. Bus
    3. Car
    4. Truck

80. Constructors have ________ return type.

    1. int
    2. char
    3. void
    4. no

81. Suppose there is an object of type Person, which of the following can be considered as one of its attributes?

    1. Name
    2. Eat
    3. Work
    4. Sleep

82. If class B inherits from class A then it contains all characteristics of ________.

    1. Class B
    2. Class A
    3. No inheritance
    4. None of the given

83. Polymorphism makes the system:

    1. reusable
    2. flexible
    3. faster
    4. All of the given

84. Which of the following types of Inheritance is used to model "Implemented in terms of" relationship?

    1. Public
    2. Private
    3. Protected
    4. Confidential

85. Consider the code below,
    
    class class1{
    private:
    void func1();
    };
    class class2 : private class1 {
    };
    Function func1 of class1 is ________ in class2.

    1. public
    2. protected
    3. private
    4. None of the given

Select a course code for Objective Questions:

ACC311 ACC501 BIF101 BIF401 BIF501 BIO101 BIO201 BIO202 BIO203 BIO204 BIO301 BIO302 BIO303 BIO401 BIO503 BNK603 BT101 BT201 BT301 BT302 BT401 BT402 BT403 BT404 BT405 BT406 BT501 BT504 BT505 BT604 CHE201 CHE301 CS001 CS101 CS201 CS202 CS204 CS301 CS302 CS304 CS311 CS401 CS402 CS403 CS408 CS501 CS502 CS504 CS506 CS508 CS601 CS602 CS604 CS605 CS607 CS609 CS610 CS614 CS707 CS710 ECO401 ECO402 ECO403 ECO404 EDU302 EDU401 EDU402 EDU501 EDU601 ENG101 ENG201 ENG301 ENG501 FIN611 FIN624 FIN625 ISL201 IT430 MCM101 MCM301 MGMT623 MGT101 MGT211 MGT301 MGT401 MGT402 MGT501 MGT502 MGT503 MGT510 MGT601 MGT603 MKT501 MKT610 MKT630 MTH101 MTH202 MTH302 MTH501 MTH601 MTH634 PAK301 PHY101 PHY301 PSY101 PSY403 PSY502 PSY512 SOC101 SOC301 SOC401 STA301 STA630 STA641 ZOO102 ZOO401 ZOO501 ZOO502 ZOO503 ZOO504 ZOO505 ZOO506 ZOO510 ZOO630

Select a course code for Subjective Questions:

ACC311 CS001 CS101 CS201 CS301 CS607 CS701 CS702 CS703 CS704 CS707 CS708 CS710 CS711 CS718 CS721 CS724 ECO401 ECO403 ENG101 ENG301 MGT703 MTH501 STA301