Referring to the Resource Allocation Graph shown in Figure 2, answer the following questions:Is there any deadlock contained in the above graph? Explain your answer.Assume now that P2 also requests resource R1. Will there be any deadlocks? Explain your answer.Assume the allocation graph at point 2), and, in addition, assume that R2 has now three instances. Will there be any deadlocks? Explain your answer.Back to the original allocation graph as in Figure 2. Add an additional process P4 that demands an instance of R1. Will there be any deadlocks? Explain your answer. R1P1R2P2R3P3

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Answered: Referring to the Resource Allocation…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Referring to the Resource Allocation Graph shown in Figure 2, answer the following questions:

Is there any deadlock contained in the above graph? Explain your answer.
Assume now that P2 also requests resource R1. Will there be any deadlocks? Explain your answer.
Assume the allocation graph at point 2), and, in addition, assume that R2 has now three instances. Will there be any deadlocks? Explain your answer.
Back to the original allocation graph as in Figure 2. Add an additional process P4 that demands an instance of R1. Will there be any deadlocks? Explain your answer.

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