Week 6 Homework - Python Revision

What is the purpose of a function in Python?

• To store data

• To perform a specific task

• To create loops

• To define a variable

Which of the following is a valid variable name in Python?

• my_variable

• 123variable

• variable#1

• 1_variable

How do you add an element to the end of a list?

• list.add(element)

• list.append(element)

• list.insert(element)

• list.extend(element)

What is the output of len([1, 2, 3, 4])?

• 4

• [1, 2, 3, 4]

• 6

• 5

Which data structure uses key-value pairs?

• Lists

• Tuples

• Dictionaries

• Sets

In a tuple, can you change the value of an element after it's created?

• Yes

• No

What is the purpose of using a set in Python?

• To store ordered elements

• To store key-value pairs

• To store unique elements

• To store elements in a sequence

What does the pop() function do when used with a dictionary?

• Removes the last element

• Removes an element at a specific index

• Removes a key-value pair with a specific key

• Removes all elements

How do you access the value associated with the key "age" in the dictionary:
person = {"name": "Alice", "age": 30}?

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Given the list:
numbers = [2, 4, 6, 8, 10]
how would you modify it to replace the second element with 5?

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