Unit 8 P2

Convention:
Using Hoasen mail to send your answer to lecturer.

Subject: TPy – Answer Exercise x (y= 2 ie class on Monday and 4 ie class on Wednesday – x: serial number of exercise)

Attack file: TPyn_xxxxxx.doc (y= 2 ie class on Monday and 4 ie class on Wednesday – n: serial number of exercise, xxxxxx: student_code )

For example:
Subject: TP2 – Answer Exercise 1 (2: class on Monday) file: TP21_123456.doc (2: Class on Monday – 1: Homework 1 – 123456 la Student ID)

Student code:
Student name:

Answer:

Homework 1
17.22 Which of the following schedules is (conflict) serializable? For each serializable schedule, determine the equivalent serial schedules.

(a) r1 (X); r3 (X); w1(X); r2(X); w3(X)
(b) r1 (X); r3 (X); w3(X); w1(X); r2(X)
Draw the serializibility (precedence) graphs for S1 and S2 and state whether each schedule is serializable or not. If a schedule is serializable, write down the equivalent serial schedule(s).

T1: r1(x); r1(z);