b. Thread Allocation ABCD 3 1 2 1 2 1 0 2 2 4 1 3 Max A B C D 5 4 6 3 3 1 2 2 2 5 3 3 6 4 1 2 5 6 7 5 4 1 1 0 A ΤΟ T1 T2 T3 T4 2 1 2 1 Figure 1: Banker's Algorithm Matrices Consider the snapshot of the system shown in Figure 1, in which there five threads TO-T4 running with various numbers of four resource types A-D. (Assume that each resource type is distinct.) Fill in the Need matrix in the figure. Need B C D Available A B C D 4 2 2 5 c. Using the banker's algorithm, determine if the system is in a safe state. If the state is safe, show the order in which the threads execute. Otherwise, explain why the state is unsafe.

b. Thread Allocation ABCD 3 1 2 1 2 1 0 2 2 4 1 3 Max A B C D 5 4 6 3 3 1 2 2 2 5 3 3 6 4 1 2 5 6 7 5 4 1 1 0 A ΤΟ T1 T2 T3 T4 2 1 2 1 Figure 1: Banker's Algorithm Matrices Consider the snapshot of the system shown in Figure 1, in which there five threads TO-T4 running with various numbers of four resource types A-D. (Assume that each resource type is distinct.) Fill in the Need matrix in the figure. Need B C D Available A B C D 4 2 2 5 c. Using the banker's algorithm, determine if the system is in a safe state. If the state is safe, show the order in which the threads execute. Otherwise, explain why the state is unsafe.

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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