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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 6 of 42

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Discuss
Answer: (d).none of the mentioned
Discuss
Answer: (b).int scanf(char *format, …)
Discuss
Answer: (a).Number of successfully matched and assigned input items
Q54.
What is the output of this C code?
#include <stdio.h>
    void main()
    {
        int n;
        scanf("%d", n);
        printf("%d", n);
    }
Discuss
Answer: (c).Nothing
Discuss
Answer: (c).Scans the string according to the format in format and stores the resulting values through arg1, arg2, etc, those arguments arg1,arg2 etc must be pointers
Q56.
The conversion characters d, i, o, u, and x may be preceded by h in scanf to indicate
Discuss
Answer: (a).A pointer to short
Q57.
What is the output of this C code (when 4 and 5 are entered)?
#include <stdio.h>
    void main()
    {
        int m, n;
        printf("enter a number");
        scanf("%d", &n);
        scanf("%d", &m);
        printf("%d\t%d\n", n, m);
    }
Discuss
Answer: (d).4 5
Discuss
Answer: (a).A character string containing the name of the file & the second argument is the mode
Q59.
For binary files, a ___ must be appended to the mode string.
Discuss
Answer: (b).β€œb”
Q60.
If there is any error while opening a file, fopen will return
Discuss
Answer: (c).NULL

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