A system has 4 processes sharing 5 resources. If each process needs amaximum of 2 resources then, deadlock:O A. Has to occurОВ. Мау осcurO C. Can never occurO D. None of the answersNext pageO.S. Structures ►Jump to...

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A system has 4 processes sharing 5 resources. If each process needs a maximum of 2 resources then, deadlock:

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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Question

A system has 4 processes sharing 5 resources. If each process needs a
maximum of 2 resources then, deadlock:
O A. Has to occur
ОВ. Мау осcur
O C. Can never occur
O D. None of the answers
Next page
O.S. Structures ►
Jump to...

Expert Solution

Step 1

Given:

Number of Processes, P = 4

Number of Resources, R = 5

Maximum Resources required by any process, n =2

So, first let us check the condition in which deadlock can never occur: P(n-1) + 1 <=R

If this condition evaluates to true in the given case, then deadlock can never occur.

P(n-1) + 1 = 4(2-1) + 1 = 4 + 1 = 5 <=5

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