Algorithms Quiz | SP Contest 3 | Question 7

Consider the below C program:

int main()
{
    fork();
    fork();
    fork();

    printf("Hello World");
}

How many child processes will be created when the above program executes?
(A) 4
(B) 5
(C) 6
(D) 7


Answer: (D)

Explanation: For n fork calls in a program, (2ⁿ-1) child processes are created.

Here n = 3.
Therefore, no of child process = 2³ – 1 = 8 – 1 = 7.

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