Explanation
Solution
To solve the Critical Section Problem, a synchronization mechanism must satisfy three primary requirements. Let's analyze the terms provided:
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Mutual Exclusion (A): If a process Pi is executing in its critical section, then no other processes can be executing in their critical sections. This is a mandatory requirement.
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Race Condition (B): This is a problem, not a condition to be fulfilled. A race condition occurs when multiple processes access and manipulate the same data concurrently, and the outcome depends on the order of execution. The goal of synchronization is to avoid race conditions.
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Progress (C): If no process is executing in its critical section and there are some processes that wish to enter their critical sections, then only those processes that are not executing in their remainder sections can participate in deciding which will enter its critical section next. This is a mandatory requirement.
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Bounded Waiting (D): There exists a limit on the number of times that other processes are allowed to enter their critical sections after a process has made a request to enter its critical section and before that request is granted. This prevents starvation. This is a mandatory requirement.
Conclusion:
Conditions (A), (C), and (D) are the requirements that must be fulfilled. (B) is the error we are trying to prevent.
Correct Option: (a) A,C,D
