Exploring Python Data Structures Quiz

Which of the following methods is used to add an element to the end of a list in Python?

• `insert()`

• `append()`

• `extend()`

• `add()`

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

• `[1, 4, 2, 3]`

• `[1, 2, 3, 4]`

• `[4, 1, 2, 3]`

• `[1, 2, 4, 3]`

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

• `set.clear()`

• `set.remove()`

• `set.discard()`

• `set.delete()`

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

• `{1, 2, 3, 4, 5}`

• `{3}`

• `{1, 2, 3}`

• `{4, 5}`

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?

• `{x: x**2 for x in range(1, 4)}`

• `{x: x*2 for x in range(1, 4)}`

• `{x: x+2 for x in range(1, 4)}`

• `{x: x**3 for x in range(1, 4)}`

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

• `nested_list[1][1][0]`

• `nested_list[1][0][1]`

• `nested_list[0][1][1]`

• `nested_list[1][1][1]`

Which of the following data types is immutable in Python?

• List

• Set

• Tuple

• Dictionary

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

• `{'a': 1, 'b': 2}`

• `{'a': 1, 'b': 2, 'c': 3}`

• `{'a': 1, 'c': 3}`

• `{'b': 2, 'c': 3}`

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

• `pop()`

• `remove()`

• `discard()`

• `delete()`

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

• `{1, 2, 3, 2}`

• `{1, 2, 3}`

• `{1, 3}`

• `{2, 3}`