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C Interview Data Types Questions

In most of the MNC interview questions such as in ZOHO interview question, IVTL Infoview interview questions, Amazon interview questions, GOOGLE interview questions, Infosys interview questions and even in Voonik interview questions, We come across several Tricky C Questions about which 2:5 of the questions are from data types in c. Solving that kind of tricky C questions is not an easy task for all C programmers. We need more practices to solve it with ease. So we provide 25+ interesting C questions in data types to make your MNC interview very easy.

Interview Data Types Questions

21. What will be the output of the C program?

#include<stdio.h>
int main()
{
	char *ptr = "c-aptitude%s";
	printf(ptr);
	return 0;
}

A. Compilation error

B. c-aptitude%s

C. c-aptitudegarbagevalue

D. c-aptitude

x

 

Option: D

Explanation

%s is the format specifier and it won't print in any case.

Answer


22. What will be the output of the C program?

#include<stdio.h>
int main()
{
	printf(" %%% ");
	return 0;
}

A. %

B. No output

C. %%

D. %%%

x

 

Option: A

Explanation

Alternative % are treated as format specifier and it won't display.

Answer


23. What will be the output of the C program?

#include<stdio.h>
int main()
{
	float x = 3.14;
	double y = 3.14;
	printf("%f %ff",x, y);
	return 0;
}

A. Runtime error

B. Compilation error

C. 3.140000 3.140000

D. 3.140000 3.140000f

x

 

Option: D

Explanation

In C language, float, double are all real data types.

The format specifier of float is %f.

The format specifier of double can also represent by %f

Answer


24. What will be the output of the C program?

#include<stdio.h>
int main()
{
	static int num = 3;
	if(--num)
	{
		main();
		printf("%d ",num);
	}
	return 0;
}

A. 2 1

B. 0 0

C. 1 1

D. 1 0

x

 

Option: B

Explanation

A static variable num is shared among all calls of a function finally ended up with a output 0

Answer


25. What will be the output of the C program?

#include<stdio.h>
int main()
{
	typedef int num;
	num num1 = 5;
	printf("%d", num1);
	return 0;
}

A. Compilation error

B. 1

C. 5

D. Runtime error

x

 

Option: C

Explanation

Here the program creates a user defined type num and creates a variable num1 of type num. Hence there is no problem with the output

Answer


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