CS304 Midterm Solved Paper 2

CS304 - Object Oriented Programming

Q1. What problem(s) may occur when we copy objects without using deep copy constructor? (1 marks)

1. Dangling pointer
2. Memory Leakage
3. All of the given
4. System crash

Q2. Suppose that the Test class does not have an overloaded assignment operator. What happens when an assignment a=b; is given for two Test objects a and b? (1 marks)

1. The automatic assignment operator is used
2. The copy constructor is used
3. Compiler error
4. Run-time error

Q3. a’A static member function can be called, even when a class is not (1 marks)

1. Declared
2. Define
3. Instantiated
4. Called

Q4. Identify which of the following overloaded operator function’s declaration is appropriate for the given call? (1 marks)

Ratipnal_number_1 + 2.325 Where Rational_number_1 is an object of user defined class Rational_number.

1. Rational_number operator+( Rational_number & obj);
2. Rational_number operator+(double& obj); (Page 145)
3. Rational_number operator+(Rational_number &obj, double& num);
4. operator+(double& obj);

Q5. __________ provide the facility to access the data member. (1 marks)

1. accesser function (Page 68)
2. private function
3. inline function
4. None of the given

Q6. Constant objects cannot change their state, (1 marks)

1. True (Page 105)
2. False

Q7. The ________ relationship indicates that an object contains other objects. (1 marks)

1. None of given

(Page 53)

1. ‘has-a’
2. ‘is-a’
3. ‘be-

Q8. Which one of the following features of OOP is used to derive a class from another? (1 marks)

Polymorphism

1. Inheritance

(Page 25)

Q9. Please choose (1 marks)

one _______ is a relationship

1. Inheritance

(Page 25)

Q10. __________ satisfy the condition of polymorphism (1 marks)

Carbon Diamond Coal

1. all of the given

(Page 56)

Q11. A generalization-specialization relation between classes are implemented using (1 marks)

friend classes

1. inheritance (Page 49)

Q12. The >= operator can be overloaded. (1 marks)

1. True (Page 140)
2. False

Q13. In order to free the memory occupied by the object, we use ------------- (1 marks)

1. Constructor
2. Destructor (Page 92)

Shallow Copy Deep Copy

Q14. Which of the following is not an example of multiple inheritances?---------- Mermaid (1 marks)

Woman (Lecture No.5)

Amphibious Vehicle

Q15. Static variable can be initialized more than once. (1 marks)

True False

Q16. A generic class showing all the common attributes and a behavior of other classes represents a very important feature in oop called -------- (1 marks)

1. Inheritance

(Page 26)