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Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

OS - Synchronization and Deadlock -Q3


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Suppose a system in which there are two types of processes, type A and type B processes. All processes of type A execute the same code, and all processes of type B execute the same code. The code for each process type is shown below.

A ProcessesB Processes
 P(X) P(Y)
 V(Y) P(Y)
  V(X)
  V(Y)

 

Here, X and Y are general semaphores. X is initialized to 2, and Y is initialized to 0. Suppose three processes of type A and two processes of type B are brought into execution simultaneously.

Consider the following statements

S1 : It is possible for processes to finish in the order of AABAB.

S2 : It is possible for processes to finish in the order AABBA.

Which of the above statement(s) is/are CORRECT ?

(A) Only S1

(B) Only S2

(C) Both S1 and S2

(D) Neither S1 or S2

asked Oct 1, 2020 by gbeditor-2 (72,840 points)
recategorized Oct 17, 2020 by gbeditor-2

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Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177
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