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Previous Year Question (PYQs)

What is the maximum number of level-2 DFD possible if the number of processes in level-1 DFD is n ?
(A) $\frac{n}{2}$
(B) 2
(C) $n^2$
(D) n




Solution

  • In a Data Flow Diagram (DFD), each process in level-1 can be decomposed further into its own level-2 diagram.
Therefore, if there are n processes at level-1, then maximum possible level-2 DFDs = n.

Correct Answer: (D) $n$

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