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

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
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C Switch Case Questions and Answers

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 Switch Case 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 Switch Case to make your MNC interview very easy.

C Switch Case Questions

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

#include<stdio.h>
int main()
{
	short int si = 1;
	switch(++si - si++)
	{
		case 1L:
		printf("First");
		break;
		case 2L:
		printf("Second");
		break;
		default:
		printf("Bye");
		break;
	}
	
return 0;
}

A. First

B. Bye

C. Second

D. Compilation Error

x

 

Option: B

Explanation

The switch(++si - si++) which becomes switch(2 - 2) -> switch(0) so default block gets executed.

Answer


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

#include<stdio.h>
int main()
{
int i = 1;
for(i = 0; i<10; i+3)
	switch(i)
	{
		
		case 3:
		printf("Hai. This is case 3");
		break;
		case 6:
		printf("Hai. This is case 6");
		break;
		break;
		default: 
		printf("Hai. This is default");
		break;
	}
	
return 0;
}

A. Hai. This is case 3

B. Hai. This is case 6

C. Infinite Execution

D. Hai. This is default

x

 

Option: C

Explanation

The for loop don't have a proper incrementation control. We don't have any other control to stop, so it goes infinite. There is extra break statement but it it is unreachable code.

Answer


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

#include<stdio.h>
int main(){
char ch = '\0';
switch(ch)
{
	case NULL:
	printf("Empty \0");
	break;
	case ' ':
	printf("Empty Empty");
	break;
	case '0':
	printf("Empty 0");
	break;
	default:
	printf("Nothing");
}
return 0;
}

A. Empty \0

B. Empty Empty

C. Empty 0

D. Empty

x

 

Option: D

Explanation

NULL = '\0'. So it executes case NULL: block. The printf statement should be like this printf("Empty \\0"); to print Empty \0.

Answer


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

#include<stdio.h>
int main(){
char *str = "ABCD";
switch(*str + 2)
{
	case 'A':
	printf("Apple");
	break;
	case 'B':
	printf("BOOK");
	break;
	case 'C':
	printf("CLOUD");
	break;
	case 'D':
	printf("DELL");
	break;
}
return 0;
}

A. CLOUD

B. BOOK

C. APPLE

D. Compilation Error

x

 

Option: A

Explanation

We can access the pointer string, character by character.

Answer


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

#include<stdio.h>
int main()
{
switch(25)
{
	case 25L:
	printf("25L");
	break;
	case 25.0:
	printf("25.0");
	break;
	default:
	printf("Nothing");
	break;
}
return 0;
}

A. 25L

B. 25.0

C. Compilation Error

D. Nothing

x

 

Option: C

Explanation

Compiler Error: Constant expression required

Answer


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