CS201 Quiz 4 Solution by Abu Huraira Faraz

CS201 QUIZ NO: 4 SOLUTION FILE

EFFORT BY: ABU HURAIRA FARAZ

1. Templates provide way of abstracting ________ information. Answer: type
2. Class is a user defined __________ Answer: data type
3. New operator is used to allocate memory from the free store during. Answer: run time
4. Which one of the following is not a possible state for a pointer? Answer: point to a type
5. Local variable are stored in an area called ________ Answer: stack
6. Types of templates in c++ language are _______ Answer: 2
7. __________ Variables are those that are defined outside of main. Answer: Global
8. The return type of operator function for << operator is __________ Answer: reference of ostream class

(ostream&)

9. The return type of operator function for >> operator is __________ Answer: reference of istream class

(istream&)

10. The first parameter of operator function for << operator ________ Answer: must be passed by reference
11. What does the following statements mean? Int (*fp) (char*) Answer: pointer to function talking a char* argument and returns an int.
12. When an object of a class is defined inside another class then, Answer: constructor of enclosing class will

be called first

13. Ostream is an _________ operator Answer: standalone
14. What is the role of constructor in classes? Answer: to initialize the data member of an object when it is created
15. We cannot define friends for the ________ that are already written and not in our control. Answer: functions
16. A template function must have Answer: one are more than one argument
17. Ostream class is ________ are not under our control. Answer: built in
18. :: is called _______ Answer: scope resolution operator
19. How many destructors are allowed in a class? Answer: 1
20. A variable which is defined inside a function is called Answer: none of the given option
21. The first parameter of operator function for << operator _________ Answer: must be object of class
22. _______ Variables are defined in the main. Answer: local
23. Which value can we not assign to reference? Answer: null
24. Court << i << “ “;Court << d << “ “; Court << f ;
25. Above statement can be written within statement of one line as: Answer: cout << I << “ “cout << d << “

“Cout << f ;

26. When a variable is defined as static in a class than____________ Answer: only one copy is created for all

objects of this class

27. What is the use of function get operator? Answer: overloading the objects
28. What will happen when the function call operator is overloaded? Answer: it will not modify the functions
29. When an objects of a class is defined inside another class then, Answer: destructor of inner object will be

called first

30. Endl is a parameter-less __________ manipulator that insert the new line besides flushing the buffer. Answer:

built – in

31. The stream insertion and extraction operators are not already overloaded for _________Answer: built – in

data types

32. Variable are those that are defined outside of main. Answer: global
33. Ostream class is _______ and not under our control. Answer: built – in
34. Automatic variable are created on __________ Answer: stack
35. Templates provide way of abstracting _________ information. Answer: type
36. Which of the following is an example of static memory allocation? Answer: array
37. Variable are defined in a main. Answer: local
38. Variable are used to maintain state. Answer: static
39. Local variable are stored in an area called ________ Answer: stack
40. :: is called Answer: scope resolution operator
41. Variable has a single copy for the whole class. Answer: local
42. Static variable which is defined in a function is initialized ________ Answer: only once during its life time
43. The operator used for dereferencing or indirection is __________ Answer: *
44. What does STL stand for? Answer: standard template library
45. Local variable are stored in an area called _______ Answer: free memory
46. The stream insertion and extraction operators are not already overloaded for ________ Answer: user –

defined data types

47. What is stl constructor? Answer: a constructor to initialize an object with the values of another object.
48. In the member initializer list the data members are initialized. Answer: in the order in which they are

defined within class

49. Which one of the following is not a possible state for a pointer? Answer: hold the address of the specific

object

50. Local variable are stored in an area called __________ Answer: stack
51. The first parameter of operator function for << operator __________ Answer: must be passed by reference
52. Static data members of a class can be _____________ Answer: public and private
53. In statement Matrix m2 = m1; Answer: Assignment operator is being used
54. The operator function for << (stream insertion) >> and stream extraction must be Answer: non-member

function of class

55. Choose the right option. String* x, y; Answer: x is a pointer to a string, y is a string
56. Which one of the following is not a possible state for a pointer? Answer: point to a type
57. Class is a user defined ____________ Answer: data type
58. What does the following statement mean? Answer: pointer to a pointer
59. Automatic variable are created on __________ Answer: stat storage
60. New operator allocates memory from free state and return ___________ Answer: a pointer/ a float

number/an integer number

61. When an object of a class is defined inside another class then, Answer: none of the given option
62. What is role of a constructor in classes? Answer: to initialize the data members of an object when it is created
63. To get the memory address of a variable we use _______ Answer: &
64. When a variable is defined as static in a class than____________ Answer: a copy of this variable is created for only static objects.
65. Variable has a single copy for the whole class. Answer: static
66. We cannot define friends for the ________ that are already written and not in our control. Answer: classes
67. When an object of a class is defined inside another class then, Answer: none of the given option