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File Input Output- C Programming MCQ Questions and Answers

Learn competitive and Technical Aptitude C programming mcq questions and answers on File I/O with easy and logical explanations. Page-9 section-3

Each section contains 100 MCQs on File Input Output .
81
Within main, return expr statement is equivalent to . . . . . . . .
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Answer & Solution
Answer: Option B
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82
ungetc() can be used only with getc().
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Answer & Solution
Answer: Option B
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83
calloc() returns storage that is initialized to.
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Answer & Solution
Answer: Option A
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84
puts() does the following when it writes to stdout.
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Answer & Solution
Answer: Option D
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85
What will be the output of the following C code?
#include <stdio.h>
int main()
{
    char buf[12];
    stderr = stdin;
    fscanf(stderr, "%s", buf);
    printf("%s\n", buf);
}
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Answer & Solution
Answer: Option C
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86
Which of the following statement is true?
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Answer & Solution
Answer: Option C
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87
Control string specifies the type and format of the data that has to be obtained from the keyboard.
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Answer: Option A
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88
What form the data must be entered for the given C code?
scanf(“%d / %d”, &n1,&n2);
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Answer & Solution
Answer: Option B
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89
What are the first and second arguments of fopen?
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Answer: Option A
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90
In a variable length argument function, the declaration "..." can . . . . . . . .
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Answer: Option B
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