File Input Output MCQs

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    int i = 10, j = 3, k = 3;
    printf("%d %d ", i, j, k);
}

What will be the output of the following C function when EOF returns?

int fputs(char *line, FILE *fp)

A conversion specification %7.4f means . . . . . . . .

puts() function adds newline character.

The . . . . . . . . function reads atmost one less than the number of characters specified by size from the given stream and it is stored in the string str.

What does tmpfile() returns when it could not create the file?

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    int n;
    scanf("%d", &n);
    ungetc(n, stdin);
    scanf("%d", &n);
    printf("%d\n", n);
    return 0;
}

What will be the output of the following C code?

#include <stdio.h>
#include <stdlib.h>
int main()
{
    printf("%d\n", rand() % 1000);
    return 0;
}

If the mode includes b after the initial letter, what does it indicates?