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Problem Solving. Consider the code below: Shared var X: integer; {initialized to 5} Process A Process B            int Y; A1:    Y = X * 2; A2:    X = Y             int Z; B1:     Z = X + 1; B2:     X = Z; Question: Using a semaphore, determine the appropriate locations of wait(S) and signal(S)  so that the only possible value of X is 12. choices:

Problem Solving. Consider the code below: Shared var X: integer; {initialized to 5} Process A Process B            int Y; A1:    Y = X * 2; A2:    X = Y             int Z; B1:     Z = X + 1; B2:     X = Z; Question: Using a semaphore, determine the appropriate locations of wait(S) and signal(S)  so that the only possible value of X is 12. choices:

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:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Problem Solving. Consider the code below:

Shared var X: integer; {initialized to 5}

Process A Process B

           int Y;

A1:    Y = X * 2;

A2:    X = Y

            int Z;

B1:     Z = X + 1;

B2:     X = Z;

Question: Using a semaphore, determine the appropriate locations of wait(S) and signal(S)  so that the only possible value of X is 12.

choices:

Place wait(S) before B1 code; and put signal(S) after A2 code.
 
Place wait(S) before B1 code; and put signal(S) after A2 code.
 
Place wait(S) before A1 code; and put signal(S) after B2 code.
 
Place wait(S) before A1 code; and put signal(S) after A2 code.

answer only no need explanation

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