Python List Basics

What is the syntax to create an empty list in Python?

• my_list = list()

• my_list = {}

• my_list = [None]

• my_list = []

How do you access the first element of a list in Python?

• list_name[0]

• list_name.first()

• list_name(1)

• list_name.get(0)

Explain the difference between append() and extend() methods in Python lists.

• append() adds one element, extend() adds multiple elements

• append() is used for strings, extend() is used for integers

• append() adds elements at the beginning of the list, extend() adds elements at the end

• append() adds multiple elements, extend() adds one element

What will be the output of the following code: my_list = [1, 2, 3, 4, 5] print(my_list[2:4])

• [2, 3]

• [1, 2]

• [4, 5]

• [3, 4]

How can you check if a specific element is present in a list in Python?

• check_element(list)

• element not in list

• element in list

• list.has(element)

What is the purpose of the index() method in Python lists?

• To return the last index of a specified value.

• To remove all occurrences of a specified value from the list.

• To sort the list in descending order.

• To return the index of the first occurrence of a specified value.

Explain the concept of list comprehension in Python.

• List comprehension is only applicable to numerical data in Python.

• List comprehension is used to create dictionaries in Python.

• List comprehension in Python is a concise way to create lists by applying an expression to each item in an existing list or iterable.

• List comprehension is a way to iterate over tuples in Python.

How do you remove an element from a list based on its value in Python?

• list.pop(value)

• list.exclude(value)

• list.delete(value)

• list.remove(value)

What will be the output of the following code: my_list = [10, 20, 30, 40, 50] print(my_list[-2])

• 50

• 30

• 10

• 40

How can you reverse a list in Python?

• list_name = list_name[::-1]

• reversed_list = list_name.reverse()

• list_name.reverse() or reversed_list = list_name[::-1]

• list_name.sort()