Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Question
1) How many serial schedules exist for the three transactions in the following figure? What are they? What is the total number of possible schedules? Transaction T₁₂ read_item(X); write_item(X); read_item(Y); write_item(Y); Transaction T₂ read_item(Z); read_item(Y); write_item(Y); read_item(X); write_item(X); Transaction T3 read_item(Y); read_item(Z); write_item(Y); write_item(Z);
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Transcribed Image Text:1) How many serial schedules exist for the three transactions in the following figure? What are they? What is the total number of possible schedules? Transaction T₁₂ read_item(X); write_item(X); read_item(Y); write_item(Y); Transaction T₂ read_item(Z); read_item(Y); write_item(Y); read_item(X); write_item(X); Transaction T3 read_item(Y); read_item(Z); write_item(Y); write_item(Z);
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