What will be the state of the system after we input the following sequence of events: e1, e2, e1, e4, e4? S1 s2 entry/a1 e1/a12 exit/a2 S21 e2/a31 exit/a21 e3/a e4/a13 e2/a9 e4/a23 S22 S3 exit/a3() entry/a22 O S3 S21 S22 S1 O None of the above

What will be the state of the system after we input the following sequence of events: e1, e2, e1, e4, e4? S1 s2 entry/a1 e1/a12 exit/a2 S21 e2/a31 exit/a21 e3/a e4/a13 e2/a9 e4/a23 S22 S3 exit/a3() entry/a22 O S3 S21 S22 S1 O None of the above

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

Computer Fundamentals

The computer is termed computation. For calculating or computing something the device that has been used is known as the computer. Or we can say that for performing a fast arithmetic operation the device that has been used is a computer. Storing, processing, and retrieving are the main features of a computer. 

Question

Consider the following UML state diagram. Assume you are already in state S1.
What will be the state of the system after we input the following sequence of
events: e1, e2, e1, e4, e4?
S1
S2
entry/a1
e1/a12
exit/a2
S21
e2/а31
exit/a21
e3/a
e4/a13
e2/a9
e4/a23
S22
S3
exit/a3()
entry/a22
S3
S21
O S22
S1
None of the above

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