POC Concurrency & Multithreading 2

Question 1

Which class in the `concurrent.futures` module is best suited for thread-based parallelism?

Accepted Answer

ThreadPoolExecutor

Answer

ProcessPoolExecutor

Answer

AsyncExecutor

Answer

ConcurrentThreadPool

Question 2

What is the primary purpose of a threading.Lock object in Python?

Accepted Answer

To synchronize access to shared resources, preventing simultaneous modification by multiple threads

Answer

To permanently block a thread from running

Answer

To set a maximum limit on the number of threads in a program

Answer

To monitor and log thread execution performance

Question 3

In Python's asyncio framework, which keyword suspends a coroutine until an awaitable completes?

Accepted Answer

await

Answer

pause

Answer

suspend

Answer

yield

Question 4

What is a deadlock in a multithreaded Python program?

Accepted Answer

A situation where two or more threads wait indefinitely for locks held by each other

Answer

A condition where a thread runs an infinite loop consuming all CPU

Answer

A crash caused by creating more threads than the system supports

Answer

A performance degradation from excessive thread context switching

Question 5

Which method of threading.Thread should you override in a subclass to define the thread's work?

Accepted Answer

run()

Answer

execute()

Answer

start()

Answer

begin()

Question 6

What is the primary advantage of asyncio over threading for I/O-bound tasks in Python?

Accepted Answer

asyncio uses cooperative multitasking, eliminating thread-switching overhead and scaling to thousands of concurrent tasks

Answer

asyncio utilizes multiple CPU cores simultaneously for faster computation

Answer

asyncio bypasses the GIL, allowing true parallelism

Answer

asyncio is faster than threading for CPU-intensive operations

Question 7

Which module and class should be used to safely pass data between threads using a FIFO queue?

Accepted Answer

queue.Queue

Answer

threading.Queue

Answer

concurrent.Queue

Answer

collections.deque