Discussion
A relationship between processes such that each has some part (critical section) which must not be executed while the critical section of another is being executed, is known as
Answer: B
Correct answer: mutual exclusion
Mutual exclusion is the requirement that no two processes be inside their critical sections at the same time, so that a shared resource is never updated by two of them at once. A semaphore is one mechanism for enforcing it, not the property itself.
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