Question-05: Consider a producer-consumer critical section problem that formalizes the programs to use a buffer (queue). Both the producer and consumer share a fixed size buffer. Producer puts an item to the buffer while consumer takes out an item from the buffer. (05 Marks) How mutual exclusion can be ensured using sleep and wakeup functions when the producer wants to put an item to the buffer while the buffer is already full or when the consumer wants to consume an item from the buffer when the buffer is empty