C Programming MCQ with Answers [ SET - 7 ] | Advanced C Programming mcq

 Advanced C Programming mcq

1. An …………..is a collection of variables of the same type. And they are declared like this:

A) Arry, int height (10)
B) Structure, struct height
C) Enumerated, Enum height (2)
D) Classes, class height

ANSWER= (A) Arry, int height (10)

 

2. In C++ Overloading is otherwise called as

A) virtual polymorphism
B)  transient polymorphism
C) pseudo polymorphism
D) ad –hoc polymorphism

ANSWER= (D) ad –hoc polymorphism

 

3. Find the output of the program: 

main()

{

printf("%d", (8,4));

} int f(int a, int b) 

{

if (a= b)

return a;

else if (a>b)

return f(a-b, b);

else

return f(a, b-a);

}

A) 2
B) 4
C) 1
D) none of these

ANSWER= (B) 4

 

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

int extern x;

void main()

printf(“%d”,x);

x=2;

getch();

}

int x=23;

A) 0
B) 2
C) 23
D) Compiler error

ANSWER= (C) 23

 

5. Which of the following are tokens in C ?

A) Keywords
B) Variables
C) Constants
D) All of the above

ANSWER= (D) All of the above

 

6. Find the output of the following programs:

main ()

(printf("%d", { (8, 4)), }

 int f(int a, int b) (if (a = = b) return a; else if (a > b) 

return 

f(a, b-a);

return f(ab, b); else

A) 2
B) 4
C) 0
D)  none of these

ANSWER= (B) 4

 

7. What is the control character for “a single character”.

A)  %c
B)  %d
C)  %i
D) %p

ANSWER= (A) %c

 

8. What is the control character for “a decimal integer”.

A)  %c
B) %d
C) %i
D) %p

ANSWER= (B) %d

 

9. C programs are converted into machine language with the help of

A)  An Editor
B) A compiler
C) An operating system
D) None of the above

ANSWER= (B)  A Compiler

 

10. Which escape character can be used to begin a new line in C ?

A)  \a
B) \b
C) \m
D) \n

ANSWER= (D) \n

 

11. A C variable cannot start with

A) An alphabet
B) A number
C) A special symbol other than underscore
D) both (b) and (c)

ANSWER= (D) both (b) and (c)

 

12. Which escape character can be used to begin a new line in C?

A)  \a
B) \b
C) \m
D) \n

ANSWER= (D) \n

 

13. Which of the following is allowed in a C Arithmetic instruction

A) []
B){}
C) ()
D) None of the above

ANSWER= (C) ()

 

14. Which of the following shows the correct hierarchy of arithmetic operations in C

A) / + * –
B) * – / +
C) + – / *
D) * / + –

ANSWER= (D) * / + –

 

15.  If P and Q are properly declared and initialized pointers and x, y and z. are integer variables, then which of the following statement is not valid?

A)  x=x+*P 
B)  y=*P+*Q
C)  P=Q+10 
D) *P=P+10

ANSWER= (D) *P=P+10

 

16. Array passed as argument to a function 

A)  Address of the array 
B) value of the first eliment of the array 
C) Address of the first eliment of the array
D) No of elements of the array

ANSWER= (C) Address of the first eliment of the array

 

17. The worst case time complexity of AVL tree is better in comparison to binary search tree for

A)  Search and Insert Operations
B) Search and Delete Operations
C) Insert and Delete Operations
D) Search, Insert and Delete Operations

ANSWER= (D) Search, Insert and Delete Operations

 

18. What are the new features of C11 or ISO IEC 9899 2011 standard.?

A) Type generic Macros, Static Assertions
B) Multi Threading, Anonymous Unions, quick_exit
C) Bounds Checking Interfaces, Anonymous Strurctures
D) All

ANSWER= (D) All

 

19. C language was invented in which laboratories.?

A) Uniliver Labs
B) IBM Labs
C) AT&T Bell Labs
D) Verizon Labs

ANSWER= (C) AT&T Bell Labs

 

20.  When we mention the prototype of a function?

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

ANSWER= (B) Declaring

 

21. 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) None of these

ANSWER= (A) ceil(1.66) 

 

22. BCPL Language is also called..?

A) C Language
B) B Language
C) D Language
D) None

ANSWER= (D) None

 

23.  Which of the following operation produce an 1, If the input bits are 1 and 1?

A) or
B) and
C) exclusive or
D) exclusive nor

ANSWER= (A) a,b, c)

 

24. If the word size is 16 bit then ~0 x c5 will be

A) 0 x 3a
B) 0xff3a
C)  0x5c
D) none of the above

ANSWER= (B) 0xff3a

 

25. The following statement P r I n t f ( ‘’ % f’’, 9/5); Prints

A) 1.8
B) 1.0
C) 2.0
D)  none of the above

ANSWER= (D)  none of the above

 

26. The function abort() is declared in the header file

A) <math.h>
B) <iostream.h>
C) <stdio.h>
D) <stdlib.h>

ANSWER= (B) <iostream.h>

 

27.  Which of the following statements should be used to obtain a remainder after dividing 3.14 by 2.1 ?

A) rem = 3.14%2.1;
B) rem=modf(3.14, 2.1);
C) rem = fmod(3.14, 2.1); 
D) Remainder cannot be obtained in floating point division

ANSWER= (C)  rem = fmod(3.14, 2.1); 

 

28. If PI and P2 are properly declared and initialized pointers and x,y,z are integer variables, then which of the following statement is not valid? 

A)  x = x+P1 
B) y = P1 *P2
C) Z= Z-P2/*P1 
D) *P2 = *P2 + 10.

ANSWER= (C) Z= Z-P2/*P1 

 

29.  Which of the following shows the correct hierarchy of arithmetic operations in C

A)  / + * -
B) * - / +
C) + - / *
D) * / + -

ANSWER= (D) * / + -

 

30. 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.

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