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Welcome to the Library Functions MCQs Page

Dive deep into the fascinating world of Library Functions with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Library Functions, a crucial aspect of C Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Library Functions, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within C Programming.

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Check out the MCQs below to embark on an enriching journey through Library Functions. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of C Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Library Functions. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Library Functions MCQs | Page 1 of 13

Explore more Topics under C Programming

Discuss
Answer: (d).Reposition the file pointer to begining of file
Q2.
Input/output function prototypes and macros are defined in which header file?
Discuss
Answer: (c).stdio.h
Q3.
Which standard library function will you use to find the last occurrence of a character in a string in C?
Discuss
Answer: (d).strrchr()
Discuss
Answer: (c).standard error streams
Discuss
Answer: (a).flushes all streams and specified streams
Discuss
Answer: (c).returns a random number generator with a random value based on time
Q7.
What will be the output of the program?
#include<stdio.h>

int main()
{
    int i;
    i = printf("How r u\n");
    i = printf("%d\n", i);
    printf("%d\n", i);
    return 0;
}
Discuss
Answer: (b).How r u 8 2
Q8.
What will be the output of the program?
#include<stdio.h>
#include<math.h>

int main()
{
    float i = 2.5;
    printf("%f, %d", floor(i), ceil(i));
    return 0;
}
Discuss
Answer: (c).2.000000, 0
Q9.
What will be the output of the program?
#include<stdio.h>

int main()
{
    int i;
    i = scanf("%d %d", &i, &i);
    printf("%d\n", i);
    return 0;
}
Discuss
Answer: (b).2
Q10.
What will be the output of the program?
#include<stdio.h>

int main()
{
    int i;
    char c;
    for(i=1; i<=5; i++)
    {
        scanf("%c", &c); /* given input is 'b' */
        ungetc(c, stdout);
        printf("%c", c);
        ungetc(c, stdin);
    }
    return 0;
}
Discuss
Answer: (c).b

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