What are the two types of Semaphore?

What are the two types of Semaphore? Correct Answer Counting Semaphores and Binary Semaphores

Semaphore is a simply a variable. This variable is used to solve critical section problem and to achieve process synchronization in the multi processing environment.
The two most common kinds of semaphores are counting semaphores and binary semaphores. Counting semaphore can take non-negative integer values and Binary semaphore can take the value 0 & 1 only.

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