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Answer : A semaphore is called binary semaphore when its value is 0, it is assumed that it has been taken (or accepted) & when its value is 1, it is assumed that it has been released & no ... that are not themselves reentrant.3. A reentrant function may does not use the hardware in a nonatomic way.

Description : What are counting semaphores and resource semaphore?

Answer : If a task tries to take the semaphore when the integer is equal to zero, then the task will block. These semaphores are called counting semaphore. Some system offer semaphore that can be ... , but they cannot be used to communicate between two tasks. Such semaphores are called resource semaphore.

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