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1. 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

2. What library function should be used to compare character string arrays?

a) strcat
b) strlen
c) strcmp
d) None of these

3. Given the following declaration:

int Values[4]={1,2,3,4};

What value will be returned if the expression "*(Values+2)" is evaluated?

a) 2
b) 1
c) 3
d) Insufficient information given to solve problem.

4. What is something that can not be done with a VOID pointer?

a) Dereferencing
b) Assignment of pointer value
c) Type-casting pointer contents to another type
d) None of these

5. 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

6. Given the following declaration:

char szName[24];

How many characters can be in the array (excluding the terminator)?

a) 24
b) 25
c) 23
d) None of these

7. Which of these would be BEST to do before using a pointer to access memory?

a) Make sure sufficient memory exists to use the pointer.
b) Check to see if your C compiler supports pointers.
c) Make sure the pointer address is valid
d) None of these

8. If A=2 upon entry into the code below, what will be output?

switch (a)
     {
     case 1: printf("Unlocking door.");
         break;

     case 2: printf("Checking back door.");
         break;

     case 3: printf("Locking door.");
         break;

     default: printf("Unknown command.");
         break;
     }

a) Checking back door
b) Unlocking door
c) Locking door
d) Unknown command

9. What will the output of the following code be?

double Zeta; // Holds ratio of alpha/w(nat)

Zeta = 0.707107; // Less than critically damped system
printf("Damping ratio = %10.1lf\n", Zeta );

a) Damping ratio = 0.707107
b) Damping ratio = 0.707
c) Damping ratio = 0.7
d) None of these

10. In C, a logical AND is indicated by what operator?

a) &&
b) ||
c) ++
d) None of the above

11. What will be the output of the following FOR loop?

for(i=0 ; i<5 ; i++)
     {
     if (i==2) continue;
     printf("%d", i);
     }

a) 1 2 3 4 5
b) 0 1 2 3 4
c) 0 1 3 4
d) None of the above

12. What is wrong with the function below?

float MyFunct(int x, float z)
{
float x2;

x2 = z*z + x;
}

a) Function defined as type FLOAT but fails to return a value
b) A semicolon is required on the first line 'float MyFunct(int x, float z);'
c) The function is returning the wrong data type (INT)
d) None of the above

13. According to the way "MyFunct" is being used below, what is its prototype?

int x,y;
//
//Program logic to fill x and y with data here
//

MyFunct(x, y);

a) int MyFunct(int, float);
b) void MyFunct(int, int);
c) float MyFunct(int, double);
d) None of these

14. What will be the output of the following FOR loop?

for(i=0 ; i<5 ; i++)
     {
     if (i==2) break;
     printf("%d", i);
     }

a) 0 1 2 3 4
b) 1 2 3 4 5
c) 1 3 4 5
d) None of the above

15. What is the data type of the following expression?

"The quick brown fox jumped over the lazy dog."

a) int*
b) double*
c) float*
d) char*
e) None of the above

16. 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

17. What is wrong with the following code?

char szPassword[24];
gets(szPassword); // Get user password

if ( szPassword == "Joshua" ) printf("Welcome!");

a) The comparison method (==) will not work with strings.
b) GETS() does not input character strings.
c) The array declaration is invalid.
d) None of these

18. 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

19. What are the objects in programming?

a) The computer's instructions
b) The data
c) The constants
d) None of the above

20. What is the default data type returned by C functions?

a) int
b) float
c) void
d) None of the above

21. How does a programmer give a preprocessor directive?

a) By starting a line with the '//' sequence
b) By ending a line with the '*/' sequence
c) By starting the line with the '#' character
d) None of the above

22. What is wrong with the following code?

int nValue = 25;
float* fAddr;

fAddr = &nValue;
*fAddr = *fAddr + 1;

a) It is illegal to use the expression *fAddr on the left side of an equals sign.
b) The pointer "fAddr" has not been loaded with the address of an object.
c) The pointer "fAddr" is of the wrong type (float*).
d) None of these

23. The data being manipulated by a program is also known as:

a) The objects
b) The algorithm
c) The flow
d) None of the above

24. Given that A=25 and B=10, what will the output of the fragment below be?

if (a<20)
     printf("Too Small.");
     else
     if (b >= 10)
         printf("Everything is OK.");
         else
         printf("B is too small.");

a) Too Small.
b) B is too small.
c) Everything is OK.
d) None of the above

25. If A=4 upon entry into the code below, what will be output?

switch (a)
     {
     case 1: printf("Unlocking door.");
         break;

     case 2: printf("Checking back door.");
         break;

     case 3: printf("Locking door.");
         break;

     default: printf("Unknown command.");
         break;
     }

a) Checking back door
b) Unlocking door
c) Locking door
d) Unknown command

26. Which declaration below would be correct to make "pVar" a pointer to int type?

a) int pVar;
b) int* pVar;
c) int &pVar;
d) None of these

27. When do C functions need to be prototyped in single-source-file projects?

a) Prototyping is always optional in C as long as a single file contains all the source code.
b) When functions are called before they are defined (i.e., function 'below' use in listing.)
c) Prototyping is always required, regardless of where the functions are used.
d) None of the above

28. What type of data must be in variable A below?

printf("A = %d now.\n", a );

a) int
b) char
c) float
d) double

29. Given the declarations:

char szData[64];
int i;

i=314;

Supposed that we wish to place a text message into szData that shows the value in variable i. Which of the statements below would accomplish this?

a) strcpy( szData , "i = %d", i);
b) sprintf( szData , "i = %d" , i );
c) strcat( szData , i , "i = %d" );
d) None of these

30. What is the effect of the break statement?

a) The body of a running loop is repeated
b) A running loop is exited, execution resumes at next statement after loop
c) The loop counter is decremented by 1
d) None of the above

31. 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

32. What is a stream?

a) A path of communication between a program and the operating system
b) A method for writing to the video screen
c) A method for checking the contents of variables
d) None of the above

33. Which standard stream below could be used to talk to a printer?

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

34. When programming graphics under the DOS environment, what is typically done first within a program?

a) Close all open files
b) Read and save the current video mode
c) Clear the video screen
d) None of the above

35. 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

36. Which standard library function below is used to move the file position indicator when implementing a random-access binary file system?

a) fopen()
b) fseek()
c) fputs()
d) None of the above

37. If the character sequence CR-LF ('\r' '\n') is encountered while reading a text file, what character sequence will result on the C side of the interface?

a) '\r'
b) '\r' '\n'
c) '\0' (NUL)
d) None of the above

38. 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

39. In the Borland Graphic Interface, the coordinates (0,0) represent what?

a) The ULH corner of the video display
b) The URH corner of the video display
c) The center of the video display
d) None of the above

40. Which type of font below looks best when shown at different magnification levels on a video screen?

a) Bit-mapped
b) Imaginary
c) Stroked (Vector)
d) None of the above

41. Which stream below is normally associated with the keyboard?

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

42. Which of these is a disadvantage of Stroked (Vector) fonts?

a) A large amount of memory is required
b) Only one color of text can be displayed
c) Rendering is a complex and slow process
d) None of the above

43. 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

44. 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

45. Which statement below would correctly allocate an array of 500 integers by using the 'NEW' operator?

a) int* Array = new int[500];
b) new int Array[500];
c) Array[500] = new int;
d) None of the above

46. Given the following declaration:

struct Complex
    {
    double re;
    double im;
    };

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

a) 8 locations
b) 16 locations
c) 0 locations
d) None of these

47. 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

48. Given the following declaration:

struct Complex
    {
    double re;
    double im;
    };


double GetMagnitude(Complex* lpStr)
{
//...
}

To access the member 're' within the function, what notation would be used?

a) lpStr->re
b) lpStr.re
c) re
d) None of the above

49. Which operator is used to access the member elements of a structure?

a) "*"
b) "."
c) "&"
d) None of these

50. 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

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