C Programming MCQ with Answers [ SET - 8 ] | Computer Programming Mcq with Answers

 Computer Programming Mcq with Answers

1. Can you combine the following two statements into one? 

char *p 

p = (char*) malloc(100);

A) char p = *malloc(100)
B)  char p = (char) malloc(100) 
C) char p = (char) malloc(100)
D)  char *p = (char) (malloc*)

ANSWER= (C) char p = (char) malloc(100)

 

2. B. Constants have fixed values that change during the execution

A) of a program
B) constants have unknown values that may be change during the execution
C)  of a program
D) none of the above

ANSWER= (A) of a program

 

3. If a=14, b=4 then a/b =

A) 2
B) 3
C)  4
D) 5

ANSWER= (B) 3

 

4. In the following code, the P2 is Integer Pointer or Integer? 

typederf int*ptr;

ptr pl, p2; 

A) Integer
B) Integer pointer
C) Error in declaration
D) None of above

ANSWER= (B)  Integer pointer

 

5. Can you combine the following two statements into one? 

char *p; 

p = (char)malloc(100);

A) char p =*malloc(100)
B) char p = (char) malloc(100)
C) char p = (char)malloc(100)
D)  char *p = (char)(malloc*)(100)

ANSWER= (C) char p = (char)malloc(100)

 

6.  If a=14, b=4 then a%b =

A) 2
B) 4
C) 5
D) 6

ANSWER= (A) 2

 

7. The typedef statement is used for -

A) declaring user defined data types
B) declaring variant variables
C) for type casting of variables 
D) none of the above

ANSWER= (D) none of the above

 

8. A bit field is a set of adjacent bits whose size can be from _________ bits in length

A)  1 to 8
B) 1 to 12
C) 1 to 14
D) 1 to 16

ANSWER= (D) 1 to 16

 

9. A multidimensional array can be expressed in terms of

A) array of pointers rather than as pointers to a group of a contiguous array
B) array without the group of a contiguous array
C) data type arrays
D) None of these

ANSWER= (A) array of pointers rather than as pointers to a group of a contiguous array

 

10.The member variables of structure are accessed by using -

A) dot (.) operator
B) arrow (→) operator
C) asterisk (*) operator
D) ampersand (&) operator

ANSWER= (A) dot (.) operator

 

11. The precedence of member operator is _________ than all arithmatic and relational operator

A) lower
B) higher
C) equal
D) None of the above

ANSWER= (B) higher

 

12. If you want to exchange two rows in a two-dimensional array, the fastest way is to:

A) Exchange the elements of the 2rows
B) Exchange the address of each element in the two rows
C) Silence the address of the rows in an array of the pointer and exchange the pointer
D)  None of these.

ANSWER= (C) Silence the address of the rows in an array of the pointer and exchange the pointer

 

13. Identify the most appropriate sentence to describe union - 

A) unions contain members of different data types witch share the same storage area in memory
B) unions are like structures
C)  unions are less frequency used in the program
D) unions are used for self operations..

ANSWER= (A) unions are used for self operations..

 

14. Automatic variable also referred to as

A) Internal variable
B) Global variable
C)  Local variable
D) External variable

ANSWER= (A) Internal variable

 

15. The union holds

A) one object at a time
B)  multiple objects
C) both (a) and (b)
D) none of these

ANSWER= (A) one object at a time

 

16. The …… variable is not destroyed on exit from the function; instead its value is presented and becomes available again. When the function is next called. These variables are declared as …….

A) extern, localvariable
B) Static, global variable
C) Static, local variable
D) Exten, global variable

ANSWER= (C) Static, local variable

 

17. For a method to be an interface between the outside world and a class , it has to be declared

A) private
B) public
C) external
D) protected

ANSWER= (B)  public

 

18. Bit fields are used only with

A)  unsigned int data type
B) float data type
C) char data type
D) int data type

ANSWER= (A)  unsigned int data type

 

19. int testarray[3][2][2] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};

What value does testarray[2][1][0] in the sample code above contain?

A) 11
B) 7
C) 5
D) 9

ANSWER= (A) 11

 

20. void main()

{

int a=10,b=20;

char x=1,y=0;

if(a,b,x,y)

{

printf(“EXAM”);

}

}

What is the output?

A) XAM is printed
B) exam is printed
C) Compiler Error
D) Nothing is printed

ANSWER= (D) Nothing is printed

 

21. The number of bytes required for enumerated data type in memory are -

A) 2 bytes
B) 4 bytes
C) 1 byte 
D) 3 bytes.

ANSWER= (A) 2 bytes

 

22. What is the similarity between a structure, union and enumeration? 

A) All of them let you define new values
B) All of them let you define new data types
C)  All of them let you define new pointers
D)  All of them let you define new structures

ANSWER= (B) All of them let you define new data types

 

23. What will be output if you will compile and execute the following c code?

#define message “union is

power of c”

void main(){

clrscr();

printf(“%s”,message);

getch();

}

A)  union is power of c
B) union ispower of c
C) union is
D) Compiler error

ANSWER= (B)  union ispower of c

 

24. Which escape character can be used to beep from speaker in C?

A) \a
B) \b
C) \m
D)  \n

ANSWER= (A) \a

 

25. Character constants should be enclosed between ___

A) Single quotes
B) Double quotes
C)  Both a and
D)  None of these

ANSWER= (A) Single quotes

 

26. String constants should be enclosed between ___

A)  Single quotes
B) Double quotes
C) Both a and b
D)  None of these

ANSWER= (B)  Double quotes

 

27. Which of the following is invalid?

A)  ‘’
B)  ““
C) ‘a’
D) ‘abc’

ANSWER= (D) ‘abc’

 

28. The variables declared in a structure definition are called its 

A) group variables 
B)  merged variables 
C) member variables 
D) total variables

ANSWER= (C)  member variables 

 

29. #define' preprocessor statement can be used for defining - 

A) macro 
B)  function 
C)  symbolic constants only 
D) both (a) % (c) 

ANSWER= (A)  macro 

 

30. The _______ chars have values from -128 to 127.

A) signed
B) unsigned
C) long
D) none

ANSWER= (A) signed

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