Pointers - C Questions

Pointers Questions - 1 Pointers Questions - 2 Pointers Questions - 3 Pointers Questions - 4 Pointers Questions - 5 Pointers Questions - 6 Pointers Questions - 7 Pointers Questions - 8

Data Types - C Questions

Data Types Questions - 1 Data Types Questions - 2 Data Types Questions - 3 Data Types Questions - 4 Data Types Questions - 5

Operators - C Questions

Operators Questions - 1 Operators Questions - 2 Operators Questions - 3 Operators Questions - 4 Operators Questions - 5

Structures - C Questions

Structures Questions - 1 Structures Questions - 2 Structures Questions - 3 Structures Questions - 4 Structures Questions - 5

Files - C Questions

Files Questions - 1 Files Questions - 2 Files Questions - 3 Files Questions - 4 Files Questions - 5

printf - C Questions

printf Questions - 1 printf Questions - 2 printf Questions - 3 printf Questions - 4 printf Questions - 5

Variables - C Questions

Variables Questions - 1 Variables Questions - 2 Variables Questions - 3 Variables Questions - 4 Variables Questions - 5

Preprocessor Macros

Preprocessor Macros - 1 Preprocessor Macros - 2 Preprocessor Macros - 3 Preprocessor Macros - 4 Preprocessor Macros - 5

While Loop - C Questions

While Loop Questions - 1 While Loop Questions - 2 While Loop Questions - 3 While Loop Questions - 4 While Loop Questions - 5

for Loop - C Questions

for Loop Questions - 1 for Loop Questions - 2 for Loop Questions - 3 for Loop Questions - 4 for Loop Questions - 5

if else - C Questions

if else Questions - 1 if else Questions - 2 if else Questions - 3 if else Questions - 4 if else Questions - 5

Switch case - C Questions

Switch case Questions - 1 Switch case Questions - 2 Switch case Questions - 3 Switch case Questions - 4 Switch case Questions - 5

Array - C Questions

Array Questions - 1 Array Questions - 2 Array Questions - 3 Array Questions - 4 Array Questions - 5

Functions - C Questions

Functions Questions - 1 Functions Questions - 2 Functions Questions - 3 Functions Questions - 4 Functions Questions - 5

Memory Allocation

Memory Allocation - 1 Memory Allocation - 2
The ones who are crazy enough to think they can change the world are the ones who do.
- Steve Jobs

C Variables Tricky 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 Variables 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 Variables to make your MNC interview very easy.

C Variables Questions

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

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

A. 0

B. Compilation error

C. Runtime error

D. 5

x

 

Option: D

Explanation

Two of the global variable can have same variable name.

Answer


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

#include<stdio.h>
static num=5;
extern int num=10;
int main()
{
	printf("%d",num);
	return 0;
}

A. Compilation error

B. 5

C. 0

D. 10

x

 

Option: A

Explanation

Though global variables can have same name, but we can initialize only one of them.

Answer


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

#include<stdio.h>
int main()
{
	int min-value = 2;
	int max-value = 10;
	int avg = max-value + min-value / 2;
	printf("%d",avg);
	return 0;
}

A. 6

B. 7

C. Runtime error

D. Compilation error

x

 

Option: D

Explanation

Special characters are not allowed in declaring a variable name. In this case the special character is min-value.

Answer


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

#include<stdio.h>
int main(){
	struct num
	{
		int num;
	};
	struct num key={25};
	printf("%d",key.num);
	return 0;
}

A. 0

B. 25

C. Garbage value

D. Compilation error

x

 

Option: B

Explanation

Two variables(num) can have same name in different scope.

Answer


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

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

A. Garbage value

B. Compilation error

C. -1

D. 0

x

 

Option: C

Explanation

In C, EOF - End of File which is a macro and its header file is stdio.h. In C, EOF is equal to -1 by default. We can use EOF in some programs to check whether file pointer reaches the end of the file.

Answer


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