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
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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
Transcribed Image Text: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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