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 - 8Data Types - C Questions
Data Types Questions - 1 Data Types Questions - 2 Data Types Questions - 3 Data Types Questions - 4 Data Types Questions - 5Operators - C Questions
Operators Questions - 1 Operators Questions - 2 Operators Questions - 3 Operators Questions - 4 Operators Questions - 5Structures - C Questions
Structures Questions - 1 Structures Questions - 2 Structures Questions - 3 Structures Questions - 4 Structures Questions - 5Files - C Questions
Files Questions - 1 Files Questions - 2 Files Questions - 3 Files Questions - 4 Files Questions - 5printf - C Questions
printf Questions - 1 printf Questions - 2 printf Questions - 3 printf Questions - 4 printf Questions - 5Variables - C Questions
Variables Questions - 1 Variables Questions - 2 Variables Questions - 3 Variables Questions - 4 Variables Questions - 5Preprocessor Macros
Preprocessor Macros - 1 Preprocessor Macros - 2 Preprocessor Macros - 3 Preprocessor Macros - 4 Preprocessor Macros - 5While Loop - C Questions
While Loop Questions - 1 While Loop Questions - 2 While Loop Questions - 3 While Loop Questions - 4 While Loop Questions - 5for Loop - C Questions
for Loop Questions - 1 for Loop Questions - 2 for Loop Questions - 3 for Loop Questions - 4 for Loop Questions - 5if else - C Questions
if else Questions - 1 if else Questions - 2 if else Questions - 3 if else Questions - 4 if else Questions - 5Switch case - C Questions
Switch case Questions - 1 Switch case Questions - 2 Switch case Questions - 3 Switch case Questions - 4 Switch case Questions - 5Array - C Questions
Array Questions - 1 Array Questions - 2 Array Questions - 3 Array Questions - 4 Array Questions - 5Functions - C Questions
Functions Questions - 1 Functions Questions - 2 Functions Questions - 3 Functions Questions - 4 Functions Questions - 5Memory Allocation
Memory Allocation - 1 Memory Allocation - 2The ones who are crazy enough to think they can change the world are the ones who do.- Steve Jobs
C Variables Tricky Interview 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 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
21. What will be the output of the C program?
#include<stdio.h>
int main()
{
char *ptr = "Cat";
*ptr = 'B';
printf("%s", ptr);
return 0;
}
x
Option: D
Explanation
*ptr='B', trying to change the character at base address to 'C' of a constant string, which is impossible and it leads to runtime error.
22. What will be the output of the C program?
#include<stdio.h>
int main()
{
char arr1[50];
char arr2[50] = "aptitude in c";
arr1 = arr2;
printf("%s", arr1);
return 0;
}
x
Option: A
Explanation
arr1 refers to base address and is constant. Hence raing to lvalue required compile time error.
23. What will be the output of the C program?
#include<stdio.h>
int main()
{
char arr1[] = "aptitude in c";
char arr2[] = "aptitude in c";
if(arr1 == arr2)
printf("cheers");
return 0;
}
x
Option: D
Explanation
Here we are comparing both base addresses and they never going to be same, hence No output.
24. What will be the output of the C program?
#include<stdio.h>
int main()
{
char *ptr, **ptr1;
printf("%u", sizeof(p));
printf("%u", sizeof(q));
return 0;
}
x
Option: B
Explanation
The size of pointer variable of any data type(char, int, double, float) will be 4 and are same.
25. What will be the output of the C program?
#include<stdio.h>
#define num 10
int main()
{
#define num 50
printf("%d",num);
return 0;
}
x
Option: C
Explanation
The pre processor directives in c programming can be redefined anywhere in the program. So the most recently assigned value will be outputted.
Related to Variables Questions
Report Us
We may make mistakes(spelling, program bug, typing mistake and etc.), So we have this container to collect mistakes. We highly respect your findings.
Programming
Electrical
Interview
© Copyright 2019