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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 5 of 42

Q41.
What is the output of this C code?
#include <stdio.h>
    int main()
    {
        int n;
        scanf("%d", n);
        printf("%d\n", n);
        return 0;
    }
Discuss
Answer: (b).Undefined behavior
Q42.
What is the output of this C code?
#include <stdio.h>
    int main()
    {
        char *n;
        scanf("%s", n);
        return 0;
    }
Discuss
Answer: (b).Undefined behavior
Q43.
What is the output of this C code?
#include <stdio.h>
    int main()
    {
        char n[] = "hellonworld!";
        char s[13];
        sscanf(n, "%s", s);
        printf("%s\n", s);
        return 0;
    }
Discuss
Answer: (c).hello
Q44.
What is the output of this C code?
#include <stdio.h>
    int main()
    {
        short int i;
        scanf("%hd", &i);
        printf("%hd", i);
        return 0;
    }
Discuss
Answer: (c).Whatever user types
Q45.
What is the output of this C code?
#include <stdio.h>
    int main()
    {
        short int i;
        scanf("%*d", &i);
        printf("%hd", i);
        return 0;
    }
Discuss
Answer: (b).Somegarbage value
Q46.
What is the output of this C code?
#include <stdio.h>
    int main()
    {
        short int i;
        scanf("%*hd", &i);
        printf("%hd", i);
        return 0;
    }
Discuss
Answer: (b).Somegarbage value
Q47.
What is the output of this C code?
#include <stdio.h>
    int main()
    {
        short int i;
        scanf("%h*d", &i);
        printf("%hd", i);
        return 0;
    }
Discuss
Answer: (a).Compilation error
Q48.
Which of the following is NOT a delimiter for an input in scanf?
Discuss
Answer: (d).None of the mentioned
Q49.
If the conversion characters of int d, i, o, u and x are preceded by h, it indicates?
Discuss
Answer: (b).A pointer to short
Q50.
Which of the following doesn’t require an & for the input in scanf?
Discuss
Answer: (a).char name[10];
Page 5 of 42

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