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Python Concurrency and Parallelism

Python Concurrency and Parallelism - Important Points


31. Which of the following is an example of a parallel processing library in Python?

A. NumPy

B. Pandas

C. TensorFlow

D. Flask

Discuss Work Space

Answer: option c

Explanation:

TensorFlow is an example of a parallel processing library in Python, as it is designed to efficiently execute machine learning algorithms on multiple processors or GPUs.

32. What is the purpose of the asyncio module in Python?

A. To provide a way to execute code concurrently using threads and processes.

B. To provide a way to execute code concurrently using coroutines.

C. To provide a way to manage and control concurrency in Python code.

D. To provide a way to create and manage threads and processes.

Discuss Work Space

Answer: option b

Explanation:

The asyncio module in Python provides a way to execute code concurrently using coroutines, making it easier to write asynchronous and concurrent code.

33. What is the purpose of the lock object in Python threading?

A. To ensure only one thread can access a shared resource at a time.

B. To prevent deadlock in multithreaded code.

C. To provide a way to communicate between threads.

D. To provide a way to synchronize tasks between threads.

Discuss Work Space

Answer: option a

Explanation:

The lock object in Python threading is used to ensure that only one thread can access a shared resource at a time, preventing race conditions and other concurrency issues.

34. What is the purpose of the semaphore object in Python threading?

A. To ensure only one thread can access a shared resource at a time.

B. To prevent deadlock in multithreaded code.

C. To provide a way to communicate between threads.

D. To provide a way to limit the number of threads that can access a resource at a time.

Discuss Work Space

Answer: option d

Explanation:

The semaphore object in Python threading is used to limit the number of threads that can access a resource at a time, which can be useful for managing shared resources that have limited capacity.

35. Which of the following is a disadvantage of using locks in multithreaded code?

A. They can cause deadlock if used improperly.

B. They can be less efficient than using other synchronization mechanisms.

C. They can be more difficult to use than other synchronization mechanisms.

D. They can be difficult to implement in Python code.

Discuss Work Space

Answer: option a

Explanation:

One disadvantage of using locks in multithreaded code is that they can cause deadlock if used improperly, which can make it difficult to manage and debug concurrent code.


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