What will be the output of the following code snippet? ```python my_list = [1, 2, 3] my_list.insert(1, 4) print(my_list) ```

Which of the following operations will remove all elements from a set in Python?

What is the result of the following set operation? ```python set1 = {1, 2, 3} set2 = {3, 4, 5} result = set1.union(set2) ```

Which of the following is a correct dictionary comprehension to create a dictionary with keys as numbers from 1 to 3 and values as their squares?

Consider the following nested data structure. How would you access the value `5`? ```python nested_list = [[1, 2, 3], [4, [5, 6]], 7] ```

Which of the following data types is immutable in Python?

What will be the output of the following code? ```python my_dict = {'a': 1, 'b': 2} my_dict['c'] = 3 print(my_dict) ```

Which method would you use to remove a key-value pair from a dictionary by key?

What is the result of the following code? ```python my_set = {1, 2, 3} my_set.add(2) print(my_set) ```

Which of the following is a mutable data type in Python?

How can you create a set with the elements 1, 2, and 3 in Python?

What will be the output of the following code? ```python my_tuple = (1, 2, 3) my_tuple[0] = 4 ```

Which of the following is a valid way to iterate over a dictionary's keys and values?

What will be the output of the following code? ```python nested_dict = {'a': {'b': 2}} print(nested_dict['a']['b']) ```