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Producer consumer problem can be solved using

  • A.semaphores
  • B.event counters
  • C.monitors
  • D.all of the above

Answer: D

Correct answer: all of the above

The producer–consumer problem needs mutual exclusion on the buffer and a way to make the producer wait when it is full and the consumer wait when it is empty. Semaphores provide both directly, event counters do it without mutual exclusion by counting occurrences, and monitors package the buffer with its condition variables. All three solve it.

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