Pointers - C Questions

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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

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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
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C Data Types 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 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.

Data Types Tricky Questions and Answers

6. Which of the following data type is right in C programming?

A. long long double

B. unsigned long long int

C. long double int

D. unsigned long double

x

 

Option: D

Explanation

Sorry, no explanation.

Answer


7. Which one of the following is incorrect?

A. enum fruits = { apple, banana }f;

B. enum fruits{ apple, banana }f ;

C. enum fruits{ apple, banana };

D. enum f{ apple, banana };

x

 

Option: A

Explanation

Syntax error occur in option A.

Answer


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

#include<stdio.h>
int main(){
	float me = 5.25;
	double you = 5.25;
	if(me == you)
		printf("I love U");
	else
		printf("I hate U");
	return 0;
}

A. Compilation error

B. I love U

C. Runtime error

D. I hate U

x

 

Option: D

Explanation

For floating point numbers (float, double, long double) the values cannot be predicted exactly. Depending on the number of bytes, the precession with of the value represented varies. Float takes 4 bytes and long double takes 10 bytes. So float stores 0.9 with less precision than long double.

Answer


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

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

A. Compilation Error

B. Linker error

C. Runtime error

D. 5

x

 

Option: B

Explanation

extern is a C keyword which specifies to the compiler that the memory for num is allocated in some other program and that address will be give to our current(this) program at the time of execution or linking. Here extern int num; is declared within the scope of the program.

Answer


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

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

A. 2 4

B. 4 4

C. 1 4

D. 1 2

x

 

Option: C

Explanation

The sizeof() operator returns the number of bytes taken by its operand ptr.Here *ptr is the character pointer which holds the memory byte of 1 and ptr is allocated with 4 bytes to hold the address of the character pointer variable *ptr

Answer


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