9 Example: P1 Request (1,0,2)• First, we Check that Request Available (that is, (1,0,2) (3,3,2) true)Allocation Need AvailableABC ABC ABCAvaliableAllocation MaxABCABCABC753332A 010A 200322PO 010 743 230302 020A 302Pl902222A 211A 002433P2 302 600P3 211 011P4 002 431Second, We must determine whether this new system state is safe. So, we execute oursafety algorithm and find that the sequence satisfies the safetyrequirement.Can request for (3,3,0) by P4 be granted?no, (2,3,0) < (3,3,0)

Answered: Image /qna-images/answer/c22f5302-0817-470c-b659-c102990a1c86.jpg

Example: P1 Request (1,0,2) • First, we Check that Request Available (that is, (1,0,2) (3,3,2) true) Allocation Need Available ABC ABC ABC Allocation Max ABC Available ABC ABC 753 332 PO 010 743 230 302 020 A 010 A 200 A 302 322 902 222 Pl A 211 A 002 433 P2 302 600 P3 211 011 P4 002 431 Second, We must determine whether this new system state is safe. So, we execute our safety algorithm and find that the sequence satisfies the safety requirement. Can request for (3,3,0) by P4 be granted? no, (2,3,0) < (3,3,0)

Example: P1 Request (1,0,2) • First, we Check that Request Available (that is, (1,0,2) (3,3,2) true) Allocation Need Available ABC ABC ABC Allocation Max ABC Available ABC ABC 753 332 PO 010 743 230 302 020 A 010 A 200 A 302 322 902 222 Pl A 211 A 002 433 P2 302 600 P3 211 011 P4 002 431 Second, We must determine whether this new system state is safe. So, we execute our safety algorithm and find that the sequence satisfies the safety requirement. Can request for (3,3,0) by P4 be granted? no, (2,3,0) < (3,3,0)

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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Concept explainers

Hash Table

A hash table also called a hash map, is a data structure that maps key-value pairs. The hash table can be used in complex systems to provide fast access and compact storage. A hash table is a structure that stores data in an abstract data type kind of associative array. It keeps data in an array format, with a distinct index value for every data value. If the index of the required data is known, then the data can be accessed very easily.

Question

Example: P1 Request (1,0,2)
• First, we Check that Request Available (that is, (1,0,2) (3,3,2) true)
Allocation Need Available
ABC ABC ABC
Avaliable
Allocation Max
ABC
ABC
ABC
753
332
A 010
A 200
322
PO 010 743 230
302 020
A 302
Pl
902
222
A 211
A 002
433
P2 302 600
P3 211 011
P4 002 431
Second, We must determine whether this new system state is safe. So, we execute our
safety algorithm and find that the sequence <P1, P3, P4, PO, P2> satisfies the safety
requirement.
Can request for (3,3,0) by P4 be granted?
no, (2,3,0) < (3,3,0)

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