QUIZ PRELIMS QUESTION

1. QUIZ PRELIMS QUESTION

2. 1) Which of the following statements is correct? A)First time method of a class is called, the constructor method is called. B)Every time method of a class is called, the constructor method is called. C)Every time an instance of a class is created, the constructor method is called. D)None of the above

3. ANSWER: C)Every time an instance of a class is created, the constructor method is called.

4. 2)________ is the mechanism which allows a class A to inherit properties of a class B. A)Data abstraction B)Encapsulation C)Inheritance D)Polymorphism

5. ANSWER: C)Inheritance

6. 3) If class A inherits from class B, then B is called _______ of A. A is called ________ of B. A)Super class, Sub class B)Subclass, Super class C)Abstract class, Base Class D)Child class, Sub Class

7. ANSWER: A)Super class, Sub class

8. 4) If class A inherits from more than one class, ie. A inherits from B1, B2,... is called A)Single Inheritance B)Multilevel Inheritance C)Multiple Inheritance D)None of the above

9. ANSWER: C)Multiple Inheritance

10. 5) What is pointer? A)The variable that stores the reference to another variable B)The variable that stores reference of garbage variable C)The variable that stores the memory address of another variable D) A & C Both

11. ANSWER: D) A & C Both

12. 6) In C++ every statement end with? A)Colon (:) B)Comma (,) C)Dot (.) D)None of the above

13. ANSWER: D)None of the above

14. 7) Global Variables can be access ? A)Anywhere in the code except inside functions. After it's declaration. B)Anywhere in the code, even inside functions. After it's declaration. C)Nowhere in the code D)None of the above

15. ANSWER: B)Anywhere in the code, even inside functions. After it's declaration.

16. 8) Local Variables can be access ? A)Code block enclosed in braces { }. B)Code block enclosed in bracket (). C)Code block enclosed in square bracket []. D)None of the above

17. ANSWER: A)Code block enclosed in braces { }.

18. 9) What features make C++ so powerful? A)Easy implementation B)Code reusability C)Easy memory management D)All the above

19. ANSWER: D)All the above

20. 10) The goal of operator overloading is __________. A)To help the user of a class B)To help the developer of a class C)To help define friend function D)None of the above

21. ANSWER: A)To help the user of a class

22. 11) Member of a class specified as _______ are accessible only to method of the class. A)private B)public C)protected D)derive

23. ANSWER: A)private

24. 12) A __________ is a special method used to initialize the instance variable of a class. A)Member function B)Destructor C)Constructor D)Structure

25. ANSWER: C) Constructor

26. 13) Which of the following is user defined data type? A)Public B)Private C)Class D)A & B Both

27. ANSWER: C)Class

28. 14) The static member variable is initialized to? A)0 B)1 C)2 D)-1

29. ANSWER: A)0

30. 15) The constructor without parameter is called? A)Method Constructor B)Default Constructor C)Operator Constructor D)Function Constructor

31. ANSWER: B)Default Constructor

32. 16) The Object is not declared for which class? A)Parent B)Base C)Abstract D)Derived

33. ANSWER: C)Abstract

34. 17) Data members is also called? A)Attribute B)Method C)Class D)Object

35. ANSWER: A)Attribute

36. 18) The parameter list in function overloading must differ by? A)Number of functions B)Function Size C)Function Name D)Number of argument

37. ANSWER: D)Number of argument

38. 19) A Class can have how many destructor? A)1 B)2 C)3 D)4

39. ANSWER: A)1

40. 20) The mechanism that binds code and data together and keeps them secure from outside world is known as A)Abstraction B)Encapsulation C)Inheritance D)Polymorphism

41. ANSWER: B)Encapsulation