C Programming MCQ with Answers [ SET - 9 ] | Computer Programming Mcq with Answers

 

1. What is an array?

A) An array is a collection of variables that are of the dissimilar data type.
B) An array is a collection of variables that are of the same data type.
C) An array is not a collection of variables that are of the same data type.
D)  None of the above.

ANSWER= (B) An array is a collection of variables that are of the same data type.

 

2. What is right way to Initialization array?

A) int num[6] = { 2, 4, 12, 5, 45, 5 } ;
B) int n{} = { 2, 4, 12, 5, 45, 5 } ;
C) int n{6} = { 2, 4, 12 } ;
D)  int n(6) = { 2, 4, 12, 5, 45, 5 } ;

ANSWER= (A)  int num[6] = { 2, 4, 12, 5, 45, 5 } ;

 

3. #define max(a, b) a< b? a:b++;

int a; b;

a = 8, b = 9;

printf("%d", max(a.b)); 

The output is -

A) 8
B) 9
C) 10
D) compilation error.

ANSWER= (D) compilation error.

 

4. Which function is necessary to exist in each & every program?

A)  void
B) sum
C)  main
D) None of these.

ANSWER= (C) main

 

5. What is the answer of: 7%3

A) 2.5
B) 1
C) 2
D) 3

ANSWER= (B) 1

 

6. An array elements are always stored in _________ memory locations.

A) Sequential
B) Random
C) Sequential and Random
D)  None of the above

ANSWER= (A) Sequential

 

7. What is the right way to access value of structure variable book{ price, page }?

A)  printf(“%d%d”, book.price, book.page);
B)  printf(“%d%d”, price.book, page.book);
C) printf(“%d%d”, price::book, page::book);
D) printf(“%d%d”, price->book, page->book);

ANSWER= (A) printf(“%d%d”, book.price, book.page);

 

8. perror( ) function used to ?

A) Work same as printf()
B) prints the error message specified by the compiler
C)  prints the garbage value assigned by the compiler
D) None of the above

ANSWER= (B) prints the error message specified by the compiler

 

9. Input/output function prototypes and macros are defined in which header file? 

A) conio.h 
B)  stdlib.h 
C) stdio.h
D) dos.h

ANSWER= (C) stdio.h

 

10. A function is a subroutine that may include one or more _______ designed to perform a specific task.

A) Functions
B) Statements
C) Libraries
D) Datatypes.

ANSWER= (B) Statements

 

11. What is used as a terminator in C?

a) ?

b) ;

c) :

d) _

Ans: b

A) ?
B) ;
C) :
D) _

ANSWER= (B) ;

 

12. Bitwise operators can operate upon?

A) double and chars
B) floats and doubles
C) ints and floats
D) ints and chars

ANSWER= (D)  ints and chars

 

13. What is C Tokens?

A) The smallest individual units of c program
B) The basic element recognized by the compiler
C) The largest individual units of program
D)  A & B Both

ANSWER= (D) A & B Both

 

14. What is Keywords?

A)  Keywords have some predefine meanings and these meanings can be changed.
B) Keywords have some unknown meanings and these meanings cannot be changed.
C) Keywords have some predefine meanings and these meanings cannot be changed.
D)  None of the above

ANSWER= (C) Keywords have some predefine meanings and these meanings cannot be changed.

 

15. The keyword used to transfer control from a function back to the calling function is - 

A) switch
B) goto
C) go back
D) return

ANSWER= (D) return

 

16. How will you print \n on screen?  

A) printf("\n") 
B) echo\\n 
C) printf("\n') 
D) printf(\\n)

ANSWER= (A) printf("\n") 

 

17. When we mention the prototype of a function? 

A) Defining 
B) Declaring 
C) Prototyping 
D) Calling

ANSWER= (B) Declaring 

 

18. The statement printf(“%c”, 100); will print?

A)  prints 100
B)  print garbage
C) prints ASCII equivalent of 100
D) None of the above

ANSWER= (C) prints ASCII equivalent of 100

 

19. In C++, when accessing a structure member, the identifier to the left of the dot operator is the name of

A) structure tag
B) structure member
C) structure variable
D)  keyword struck

ANSWER= (C) structure variable

 

20. How would you round off a value from 1.66 to 2.0 ? 

A) ceil(1.66) 
B) floor(1.66) 
C) roundup(1.66)
D) roundto(1.66)

ANSWER= (A) ceil(1.66) 

 

21. To represent hierarchical relationship between elements, which data structure is suitable ?

A) Priority
B) Tree
C) Dqueue
D)  All of the above

ANSWER= (B) Tree

 

22. Which of the following data structure is linear type?

A) Strings
B) Queue
C) Lists
D)  All of the above

ANSWER= (D)  All of the above

 

23.How many values can be returned from a function?

A) 1
B) 2
C) 3
D) 4

ANSWER= (A) 1

 

24. A pointer is

A) data type of an address variable
B)  a variable for storing address
C) indication of the variable to be accessed next
D) address of a variable

ANSWER= (B)   a variable for storing address

 

25.Is the following statement a declaration or definition?

extern int i;

A) declaration
B) definition
C) function
D)  error

ANSWER= (A) declaration

 

26. Is the following statement a declaration or definition? 

extern int i

A)  Declaration
B) Definition
C)  Function
D)  Error

ANSWER= (A) Declaration

 

27. When fopen() fails to open a file it returns 

A) NULL
B) -1
C) 1
D) none of these

ANSWER= (A)  NULL

 

28. the EOF is equivalent to - 

A) -1
B) 0
C) 1
D) none of these

ANSWER= (A) -1

 

29.  What is the action of strcmp() function

A) compare two strings
B) copies one string over another
C) finds the length of a string
D) cut one string over another

ANSWER= (A) compare two strings

 

30.  Null character is represented by

A) \n
B) \0
C) \o
D) \e

ANSWER= (B) \0

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