1. Let A, B and C be three different non-preemptible resource types. Assume maximum claims andcurrent resource assignments for four processes P0, P1, P2, and P3, are given in the following table,along with the total number of allocated resources for each process.МаxAllocationAvailableАВСАВСАВСРО001001P1175100P2235135P3065063Total299152a) How many resources are there of type (AB.C)?b) What is the contents of the Need matrix?c) Is the system in a safe state? Why?d) If a request from process P1 arrives for additional resources of (0,5,2), can the Banker's algorithmgrant the request immediately?

Note: The solutions of the first three subparts are shown below. Please report the remaining subpart…

1. Let A, B and C be three different non-preemptible resource types. Assume maximum claims and current resource assignments for four processes P0, P1, P2, and P3, are given in the following tabi along with the total number of allocated resources for each process. Allocation Available ABC Мах ABC АВС PO 001 001 P1 175 100 P2 235 135 P3 065 063 Total 299 152 a) How many resources are there of type (A.B.C)? b) What is the contents of the Need matrix? c) Is the system in a safe state? Why?

1. Let A, B and C be three different non-preemptible resource types. Assume maximum claims and current resource assignments for four processes P0, P1, P2, and P3, are given in the following tabi along with the total number of allocated resources for each process. Allocation Available ABC Мах ABC АВС PO 001 001 P1 175 100 P2 235 135 P3 065 063 Total 299 152 a) How many resources are there of type (A.B.C)? b) What is the contents of the Need matrix? c) Is the system in a safe state? Why?

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

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1. Let A, B and C be three different non-preemptible resource types. Assume maximum claims and
current resource assignments for four processes P0, P1, P2, and P3, are given in the following table,
along with the total number of allocated resources for each process.
Маx
Allocation
Available
АВС
АВС
АВС
РО
001
001
P1
175
100
P2
235
135
P3
065
063
Total
299
152
a) How many resources are there of type (AB.C)?
b) What is the contents of the Need matrix?
c) Is the system in a safe state? Why?
d) If a request from process P1 arrives for additional resources of (0,5,2), can the Banker's algorithm
grant the request immediately?

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