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What is deadlock? Draw a resource allocation graph for the following processes and resources. There are...

What is deadlock? Draw a resource allocation graph for the following processes and resources. There are four processes running (P1, P2, P3 and P4) and five resources each with single instance (R1, R2, R3, R4 and R5). P1 is holding R1 and R3 and requesting R2. P2 is holding R2 and requesting R3. P3 is holding R4 and requesting R5. P4 is holing R5 and requesting R1. Is it a deadlock situation? Justify your answer.

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