Predict the output of the following program code

Total available count: 17
Subject - Operating System
Subsubject - Process Model and IPC

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Predict the output of the following program code?

main()
{
    fork( fork( fork( printf("Slightbook World!"))));
}

Answer:-

"Slightbook World" will be printed 8 times.

Explanation:-

2^n times where n is the number of calls to fork().

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