Suppose we have a system of 3 processes named A, B and C. A sends two messages to C- the message contents being 1 and 2 respectively. Similarly B sends 2 messages to C; the contents being 3 and 4 respectively. Process C simply keeps doing this: receive a message and print it. (a) Assuming all the default assumptions, what possible outputs will be generated by C? (By "output" we mean the entire sequence of numbers printed by Cin a complete run of the system. Note that several different sequences are possible in different runs.) You can enumerate these sequences or describe them precisely in words. (b) Assuming that the communication lines are non-FIFO, what would be your new answer?
Suppose we have a system of 3 processes named A, B and C. A sends two messages to C- the message contents being 1 and 2 respectively. Similarly B sends 2 messages to C; the contents being 3 and 4 respectively. Process C simply keeps doing this: receive a message and print it. (a) Assuming all the default assumptions, what possible outputs will be generated by C? (By "output" we mean the entire sequence of numbers printed by Cin a complete run of the system. Note that several different sequences are possible in different runs.) You can enumerate these sequences or describe them precisely in words. (b) Assuming that the communication lines are non-FIFO, what would be your new answer?
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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Transcribed Image Text:Suppose we have a system of 3 processes named A, B and C. A sends two
messages to C- the message contents being 1 and 2 respectively. Similarly B
sends 2 messages to C; the contents being 3 and 4 respectively.
Process C simply keeps doing this: receive a message and print it.
(a) Assuming all the default assumptions, what possible outputs will be
generated by C? (By "output" we mean the entire sequence of numbers
printed by C in a complete run of the system. Note that several different
sequences are possible in different runs.) You can enumerate these
sequences or describe them precisely in words.
(b) Assuming that the communication lines are non-FIFO, what would be your
new answer?
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