Function MCQs

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    foo();
    foo();
}
void foo()
{
    int i = 11;
    printf("%d ", i);
    static int j = 12;
    j = j + 1;
    printf("%d\n", j);
}

What will be the output of the following C code?

#include <stdio.h>
register int x;
void main()
{
    printf("%d", x);
}

Functions can return structure in C?

What is the advantage of #define over const?

What is the default return type if it is not specified in function definition?

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    void foo();
    void f()
    {
        foo();
    }
    f();
}
void foo()
{
    printf("2 ");
}

What will be the output of the following C code?

#include <stdio.h>
void main()
{
    m();
    printf("%d", x);
}
int x;
void m()
{
    x = 4;
}

Functions in C are always . . . . . . . .

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    register static int i = 10;
    i = 11;
    printf("%d\n", i);
}