QUESTION 2 Assume that there are : • 3 processes P1, P2, & P3 o 3 Resources R1( two instances), R2 (one instance), & R3 (two instances) And the processes make the requests for resources in the following order: o Pl requests R1 o P2 requests R2 o Pl requests R2 o P3 request R3 o P3 Request R2 o P2 request R3 Draw the resource allocation graph and find wybether deadlock evists? Justify vour answer

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
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QUESTION 2
Assume that there are :
• 3 processes P1, P2, & P3
o 3 Resources R1( two instances), R2 (one instance), & R3 (two instances)
And the processes make the requests for resources in the following order:
o Pl requests R1
o P2 requests R2
o Pl requests R2
o P3 request R3
• P3 Request R2
o P2 request R3
Draw the resource allocation graph and find whether deadlock exists? Justify your answer.
Transcribed Image Text:QUESTION 2 Assume that there are : • 3 processes P1, P2, & P3 o 3 Resources R1( two instances), R2 (one instance), & R3 (two instances) And the processes make the requests for resources in the following order: o Pl requests R1 o P2 requests R2 o Pl requests R2 o P3 request R3 • P3 Request R2 o P2 request R3 Draw the resource allocation graph and find whether deadlock exists? Justify your answer.
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