3. What is special about the NULL pointer value?

a) The NULL pointer automatically dereferences the target object.
b) Arrays can only be accessed if a NULL pointer is used.
c) The NULL pointer is obtained when a disk I/O error occurs.
d) None of these

4. A certain function has the following prototype:

float MyFunct(int x, float z);

Which statement below correctly calls this function? Assume that A and B are type INT, and C is type FLOAT.

a) MyFunct( a, b);
b) a = MyFunct( 0, a);
c) c = MyFunct( a, 1.41459 );
d) None of the above

5. How are comments marked in C++?

a) With the ';' character
b) With either '//' (start of line) or '/* .. */'
c) With the '++' sequence
d) None of the above

6. What is the meaning of the following declaration?

float* pVar;

a) pVar is a pointer to data of type FLOAT
b) pVar is a floating point variable
c) pVar is meant to have an initial value of zero
d) None of these

7. What output will be produced by the DO loop below?

int i=2;

do  {
     i++;
     if (i==7) continue;
     printf("%d", i);
     }
     while(i<10);

a) 3 4 5 6 7 8 9
b) 2 3 4 5 6 7 8
c) 3 4 5 6 8 9 10
d) None of the above

8. When is a C expression considered to be 'true?'

a) When it is non-zero
b) When it is zero
c) Whenever it is not false
d) None of the above

9. What is the result of evaluating the following expression?

22/7. + 5/3

a) 4.142857...
b) 4.809523...
c) 5
d) None of the above

10. If A=1 upon entry into the code below, what will be output?

switch (a)
     {
     case 1: printf("TV is on.");

     case 2: printf("Stereo is on.");
         break;

     case 3: printf("Room lights dimmed.");
         break;

     default: printf("Say what?");
         break;
     }

a) TV is on.
b) TV is on. Stereo is on.
c) Room lights dimmed.
d) Say what?

11. Which standard stream below could be used to talk to the video display?

a) stdprn
b) stderr
c) stdout
d) stdaux
e) None of the above

12. What value is returned by the NEW operator when a memory allocation request fails?

a) -1
b) NULL pointer
c) 0xffff
d) None of the above

13. What must be done with any objects created through the 'NEW' operator prior to termination of a program?

a) The objects must be tested to see if they hold proper values
b) The objects must be tested with the 'OLD' operator
c) The objects must be deleted from memory
d) None of the above

14. What must be done with open files prior to ending a program?

a) Close them
b) Write the final information into them
c) Check their contents
d) None of the above

15. Which of these is a disadvantage of passing structures to functions by value?

a) Two copies of the structure occupy memory during the function's execution
b) Copying the structure is a relatively slow process
c) The function can not modify the original values in the structure
d) All of the above

16. Given the following declaration:

struct Complex
    {
    double re;
    double im;
    };

Complex Values[10];

If a DOUBLE uses 8 memory locations, how much memory is used up?

a) 160
b) 80
c) 40
d) None of these

17. What is a structure?

a) A user-defined data type that can contains aggregate data
b) A special type of C pointer that can not be dereferenced directly
c) Another name for a C program
d) None of these

18. What is the default access type for members of a class?

a) Public
b) Private
c) Protected
d) None of the above

19. The method of a class that is called automatically when objects of that class are instantiated is called the:

a) Constructor
b) Initializer
c) Destructor
d) None of the above

20. How does C++ discriminate between overloaded functions -- in other words, how does C++ know which version of an overloaded function to call?

a) By looking at the returned data type and comparing it with how the caller is using the function
b) By examining the parameter list and comparing it with the caller's parameters
c) By counting the number of times the function has been called
d) None of the above

21. The functions that are part of Class objects are called the:

a) Data members
b) Elements
c) Methods
d) None of the above

22. Suppose that a function has the following prototype:

void DonutLove(int& nLamars );

How will the calling function be passing its value?

a) By reference (implied pointer)
b) By pointer (explicit pointer operation required)
c) By value
d) None of the above

23. In what file would you find the definition (prototypes) for a class called CGhostBuster?

a) GhostBuster.h
b) GhostBuster.cpp
c) CGhostBuster.c
d) None of the above

24. Which statement will correctly and dynamically allocate room for 13 (baker's dozen) CDonut objects?

a) CDonuts* NoSprinkles = new CDonuts[13];
b) CDonuts NoSprinkles[13];
c) NoSprinkles[13]->CDonuts[13];
d) None of the above

25. If a class member is defined as "private," who can access it?

a) Only functions within the same program
b) Any function within any process running on the computer
c) Only methods within the class itself
d) None of the above

26. Suppose that the following overloaded function prototypes are given:

A) void Homer(int, char, float);
B) int Homer(double);
C) float Homer(double, int, int, double);

Which version will be called by the program statement:

Homer(35,'A', 3.14159);

a) Version "A"
b) Version "B"
c) Version "C"
d) Insufficient information

27. What parameter passing method of C++ gives the advantage of passing values by pointer, yet avoids the use of pointer notation in both the calling and called functions?

a) Passing by value
b) Passing by reference
c) Passing by array
d) None of these

28. Given the class definition:

Class CGeek
{
public:
int m_nNeckties;
void TalkGibberish();
}

What is the correct prototype for the default constructor?

a) int Geek(char*);
b) void ~CGeek();
c) CGeek();
d) None of these

29. What is the primary difference between objects defined with Class versus those defined with Struct?

a) The Class objects have active behaviors
b) The Struct objects have built-in data protection
c) There's no functional difference between them
d) None of the above