Understanding Python Lists

What is a list in Python?

• A list in Python is a type of function that returns values.

• A list in Python is a mutable, ordered collection of items defined by square brackets.

• A list in Python is an immutable, unordered collection of items.

• A list in Python is a collection of items defined by curly braces.

Which of the following is a valid way to create a list?

• my_list = [1, 2, 3]

• my_list = {1, 2, 3}

• my_list = '1, 2, 3'

• my_list = (1, 2, 3)

What method would you use to add an item to the end of a list?

• Use the 'add()' method.

• Use the 'insert()' method.

• Use the 'extend()' method.

• Use the 'append()' method.

How do you access the first element of a list named 'my_list'?

• my_list[0]

• my_list.get(0)

• my_list.first()

• my_list(1)

What will be the output of List = [1, 2, 3]; List.insert(1, 5); print(List)?

• A) [1, 5, 2, 3]

• B) [1, 2, 5, 3]

• C) [5, 1, 2, 3]

• D) [1, 2, 3, 5]

Which method removes the first occurrence of a value from a list?

• remove()

• delete()

• pop()

• discard()

What is the result of the expression len(my_list) if my_list = [1, 2, 3, 4, 5]?

• 4

• 6

• 10

• 5

What will my_list[-1] return if my_list = [1, 2, 3, 4, 5]?

• 1

• 3

• 4

• 5

What will be the output of print(len([10, 20, 30, 40]))?

• A) 3

• B) 4

• C) 5

• D) Error

How do you remove all items from a list?

• Use del list to clear the list

• Use list.pop() to remove the last item only

• Use list.remove() to delete items one by one

• Use list.clear() or assign an empty list: list = []