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Function - C Programming MCQ Questions and Answers

Learn competitive and Technical Aptitude C programming mcq questions and answers on Function with easy and logical explanations. Page-5 section-1

Each section contains 100 MCQs on Function .
41
Which of the following is a complete function?
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
42
What will be printed when this program is executed?
int f(int x)
{
   if(x <= 4)
      return x;
   return f(--x);
}
void main()
{
   printf("%d ", f(7)); 
}
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Answer & Solution
Answer: Option C
Solution:

In this recursive function call the function will return to main caller when the value of x is 4. Hence the output.

43
The recursive functions are executed in a ...........
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Answer & Solution
Answer: Option C
Solution:
Because for each function call an entry is created in stack frame( known as Active Record Instance), and are executed in LIFO manner.
44
The function scanf() returns .........
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Answer & Solution
Answer: Option D
Solution:

According to the prototype, the return type of scanf( ) function is int, that is the number of successful read input values.

45
Functions have ..........
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Answer & Solution
Answer: Option C
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46
Which of the following function calculates the square of 'x' in C?
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Answer & Solution
Answer: Option C
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47
When a function is recursively called all the automatic variables are stored in a ..........
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Answer & Solution
Answer: Option A
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48 
char* myfunc(char *ptr)
{
   ptr+=3;
   return(ptr);
}

void main()
{
   char *x, *y;
   x = "EXAMVEDA";
   y = myfunc(x);
   printf("y=%s", y);
}

What will be printed when the sample code above is executed?
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Answer & Solution
Answer: Option B
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49
What will be the output of the following C code?
#include <stdio.h>
#define foo(x, y) #x #y
int main()
{
    printf("%s\n", foo(k, l));
    return 0;
}
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Answer & Solution
Answer: Option A
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50
What will be the output of the following C code?
#include <stdio.h>
double var = 8;
int main()
{
    int var = 5;
    printf("%d", var);
}
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Answer & Solution
Answer: Option A
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