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Welcome to the Input and Output in C MCQs Page

Dive deep into the fascinating world of Input and Output in C with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Input and Output in C, a crucial aspect of C Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Input and Output in C, 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 Input and Output in C. 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 Input and Output in C. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Input and Output in C MCQs | Page 9 of 42

Q81.
What is the output of this C code?
#include <stdio.h>
    int main()
    {
        char buf[12];
        stderr = stdin;
        fscanf(stderr, "%s", buf);
        printf("%s\n", buf);
    }
Discuss
Answer: (c).Whatever user types
Discuss
Answer: (a).stdin
Discuss
Answer: (a).The diagnostic output is directly displayed in the output
Q84.
Which of the following function can be used to terminate the main function from another function safely?
Discuss
Answer: (b).exit(expr);
Discuss
Answer: (d).All of the mentioned
Discuss
Answer: (b).They check for output errors
Discuss
Answer: (b).stdout
Discuss
Answer: (a).The diagnostic output is directly displayed in the output
Q89.
The syntax of fgets is char *fgets(char *line, int maxline, FILE *fp). Which is true for fgets.fgets ?
Discuss
Answer: (d).Both returns line on success & On end of file or error it returns NULL
Q90.
fputs function writes a string to a file that only ends with a newline
Discuss
Answer: (b).false

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