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Frequently Asked C interview questions and answers for freshers

(#M40125974) C QUESTION Main function Keep an EYE

Function main is the starting point of execution of a program. Which of the following options shall help in making an executable program without the
use of main function in the program?
1. Any function can be made and marked as starting point using a language dependent syntax
2. Two macros can be used. One to hold the name of a function and its working and the other to call the first macro
3. Any program without a main function shall not do anything but can only produce a blank screen
4. It is not possible to run a program without a main function in a program

Asked In C Rinkalkumar Kalola (6 years ago)

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(#M40165491) C QUESTION Keep an EYE

Consider the following code:

for i= m to n increment 2
{ print "Hello!" }

Assuming m < n and exactly one of (m,n) is even, how many times will Hello be printed?
Option 1 : (n - m + 1)/2
Option 2 : 1 + (n - m)/2
Option 3 : 1 + (n - m)/2 if m is even, (n - m + 1)/2 if m is odd
Option 4 : (n - m + 1)/2 if m is even, 1 + (n - m)/2 if m is odd

Asked In C Dastagiri Sha (2 years ago)

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(#M40156418) C QUESTION memory Keep an EYE

A 10-bit unsigned integer has the following range:
Options:
[1] 0 to 1000
[2] 0 to 1024
[3] 1 to 1025
[4] 0 to 1023

Asked In C JANARTHANAN RAM (5 years ago)

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(#M40031857) C QUESTION Keep an EYE

What is the output of this C code?

#include
int main()
{
int i = 10;
void *p = &i;
printf("%dn", (int)*p);
return 0;
}
a) Compile time error
b) Segmentation fault/runtime crash
c) 10
d) Undefined behaviour

Asked In C Rajendra Singh (7 years ago)

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(#M40166816) C QUESTION c-programming Keep an EYE

interview question slove

Asked In C s.ravikumar (1 year ago)

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(#M40154368) C QUESTION Keep an EYE

integer i=0,j
while( i < 2 )
{
j = 0;
while ( j <= 3*i )
{
print j
print blank space
j = j + 3
}
print end-of-line //takes the cursor to the next line
i = i + 1
}
What will be the output of the program?

Asked In C Soumya Mohanty (5 years ago)

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(#M40018743) C QUESTION C- QUESTIONS Keep an EYE

What will be the output of the program ?
#include

int main()
{
int i=3, *j, k;
j = &i;
printf("%dn", i**j*i+*j);
return 0;
}
Options
1) 30
2) 27
3) 9
4) 3

Asked In C (8 years ago)

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(#M40018726) C QUESTION C- QUESTIONS Keep an EYE

If char=1, int=4, and float=4 bytes size, What will be the output of the program ?
#include

int main()
{
char ch = 'A';
printf("%d, %d, %d", sizeof(ch), sizeof('A'), sizeof(3.14f));
return 0;
}
Options
1) 1, 2, 4
2) 1, 4, 4
3) 2, 2, 4
4) 2, 4, 8

Asked In C (8 years ago)

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(#M40018728) C QUESTION C- QUESTIONS Keep an EYE

Does mentioning the array name gives the base address in
all the contexts?

Asked In C (8 years ago)

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(#M40018705) C QUESTION C- QUESTIONS Keep an EYE

Which of the following is the correct order of evaluation for the below expression?
z = x + y * z / 4 % 2 - 1

Options
1) * / % + - =
2) = * / % + -
3) / * % - + =
4) * % / - + =

Asked In C (8 years ago)

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