File Input Output MCQs

Practice free File Input Output multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 296 questions — no login required.

#include <stdio.h>
int main()
{
    FILE *fp;
    fp = fopen("newfile", "w");
    printf("%d\n", ferror(fp));
    return 0;
}

int ungetc(int c, FILE *stream)