What is the result of evaluating 'is' vs '==' when comparing two distinct lists with identical elements: a = [1, 2] and b = [1, 2]?
Option C is correct. == checks value equality (content), so $a == b$ is True. 'is' checks identity (memory location), so 'a is b' is False since a and b are separate list objects.
Which special method in Python is called automatically when an object is instantiated to initialize its attributes?
Option B is correct. __init__() is the initializer method for Python class instances. It receives the newly created instance as self along with constructor arguments.
In Python exception handling, when is the code inside a finally block executed?
Option C is correct. The finally block executes under all circumstances-whether an exception was raised, caught, or ignored, making it ideal for resource cleanup (e.g., closing files).
What does the zip() built-in function do in Python?
Option A is correct. zip(*iterables) iterates over multiple iterables, aggregating elements into tuple pairs until the shortest input iterable is exhausted.
Which dictionary method returns a default value if a specified key does not exist, avoiding a KeyError?
Option B is correct. get(key, default) returns the value for key if present in dictionary, or default (or None) if the key is missing without raising a KeyError.