The following pair of processes share a common variable X. Process A int Y; A1: Y=X*2: A2: X = Y; Process B int Z; B1: Z=X+1; B2: X=Z; X is set to 5 before either process begins execution. As usual, statements within a process are executed sequentially, but statements in process A may execute in any order with respect to statements in process B. How many different values of X are possible after both processes finish executing? O a. three O b. two Ⓒc. four O d. eight

Computer Networking: A Top-Down Approach (7th Edition)
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ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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The following pair of processes share a common variable X.
Process A
int Y:
A1: Y = X*2;
A2: X = Y;
Process B
int Z;
B1: Z = X+1;
B2: X = Z;
X is set to 5 before either process begins execution. As usual, statements within a process are executed sequentially, but statements in process A may
execute in any order with respect to statements in process B.
How many different values of X are possible after both processes finish executing?
O a. three
O b. two
Ⓒc. four
O d. eight
Transcribed Image Text:The following pair of processes share a common variable X. Process A int Y: A1: Y = X*2; A2: X = Y; Process B int Z; B1: Z = X+1; B2: X = Z; X is set to 5 before either process begins execution. As usual, statements within a process are executed sequentially, but statements in process A may execute in any order with respect to statements in process B. How many different values of X are possible after both processes finish executing? O a. three O b. two Ⓒc. four O d. eight
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