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Lesson 5

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Questions and Answers

What is a classic example of a producer-consumer scenario that requires synchronization?

Race condition

Semaphore implementation

Thread execution

Buffer manipulation (correct)

What is the primary purpose of using mutex locks in thread synchronization?

To optimize the CPU usage by threads

To detect deadlocks between threads

To allow multiple threads to run in parallel

To ensure mutual exclusion when threads access shared resources (correct)

In the context of semaphores, what does the 'wait()' operation do?

Increments the semaphore value

Resets the semaphore value to its initial value

Decrements the semaphore value (correct)

Checks the semaphore value without changing it

What is a spinlock primarily used for in multi-processor systems?

Allowing a thread to run in a busy loop for a short time, avoiding the overhead of a sleep queue Signup and view all the answers

What is the main disadvantage of disabling interrupts frequently in terms of system time?

It can cause the system clock to lose the correct time Signup and view all the answers

What happens if semaphore operations 'wait()' and 'signal()' are not executed atomically?

Mutual exclusion may be violated Signup and view all the answers

In the context of thread synchronization, what is the primary use of 'pthread_mutex_lock()' and 'pthread_mutex_unlock()'?

To ensure mutual exclusion during critical section access Signup and view all the answers

Lesson 5

Choose a study mode

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Questions and Answers

What is a classic example of a producer-consumer scenario that requires synchronization?

What is the primary purpose of using mutex locks in thread synchronization?

In the context of semaphores, what does the 'wait()' operation do?

What is a spinlock primarily used for in multi-processor systems?

What is the main disadvantage of disabling interrupts frequently in terms of system time?

What happens if semaphore operations 'wait()' and 'signal()' are not executed atomically?

In the context of thread synchronization, what is the primary use of 'pthread_mutex_lock()' and 'pthread_mutex_unlock()'?

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