Question 6 (Advanced):
In Python's context managers, what is the purpose of the __enter__ and __exit__ methods?

A) Memory allocation and garbage collection
B) Database connection pooling
C) Resource initialization and cleanup
D) Thread synchronization

#Python #ContextManagers #ResourceManagement #Advanced

Question 8 (Advanced):
What is the time complexity of checking if an element exists in a Python set?

A) O(1)
B) O(n)
C) O(log n)
D) O(n^2)

#Python #DataStructures #TimeComplexity #Advanced

✅ By: https://yangx.top/DataScienceQ

Question 1 (Advanced):
When using Python's multiprocessing module, why is if __name__ == '__main__': required for Windows but often optional for Linux/macOS?

A) Windows lacks proper fork() implementation
B) Linux handles memory management differently
C) macOS has better garbage collection
D) Windows requires explicit process naming

#Python #Multiprocessing #ParallelComputing #Advanced

✅ By: https://yangx.top/DataScienceQ

Question 23 (Advanced):
How does Python's "Name Mangling" (double underscore prefix) work in class attribute names, and what's its practical purpose?

class Test:
    def __init__(self):
        self.public = 10
        self._protected = 20
        self.__private = 30  # Name mangling

obj = Test()
print(dir(obj))  # What happens to __private?

Options:
A) Completely hides the attribute
B) Renames it to _Test__private
C) Makes it immutable
D) Converts it to a method

#Python #OOP #NameMangling #Advanced

✅ By: https://yangx.top/DataScienceQ