CodeHS Python Unit 9 Quiz Review

Given the following list, what will be printed when the following line of code is called?

print(my_list[3][1:])

• [7, 8]

• [9, 10, 11]

• [6, 7, 8]

• [10, 11]

Given the following list, Which line of code would print the number ‘5’ to the screen?

• print(my_list[1])

• print(my_list[1:2])

• print(my_list[1][2])

• print(my_list[2][3])

What kind of data structure is user_data in the following declaration?

user_data = {"name": "TJ", "age":24, "user_name":"artLover123"}

• Tuple

• List

• Dictionary

• 2D List

What is the output of this program?

• 12 45 1 3 7 2 5 8 3

• 12 3 5 45 7 8 1 2 3

• 12 3 5

• 3 2 1 8 7 45 5 3 12

Which of the following code snippets will create this 2D list?

• board = [1, 2, 3] + [4, 5, 6] + [7, 8, 9]

• board = [1, 2, 3]

  board.append([4, 5, 6])

  board.append([7, 8, 9])

• board = [1, 2, 3, 4, 5, 6, 7, 8, 9]

• board = []

  board.append([1, 2, 3])

  board.append([4, 5, 6])

  board.append([7, 8, 9])

Which of the following list comprehensions will create the same list as the for loop below?

• my_list = [i for i in range(6)]

• my_list = [i*2 for i in range(6)]

• my_list = [i for i*2 in range(6)]

• This cannot be done using a list comprehension statement.

What does “packing” refer to in Python?

• Creating a list

• Initializing variables using values from a list

• Storing multiple variables’ values by putting them in a collection, like a list or tuple

• Cramming as many commands as possible onto a single line

What does “unpacking” refer to in Python?

• Creating a list

• Initializing multiple variables at a time using a collection of values

• Storing multiple variables’ values by putting them in a collection, like a list or tuple

• Cramming as many commands as possible onto a single line

Which of the following assignment statements is equivalent to the following code snippet?

coffee, tea, smoothie = ["kona", "mango", "raspberry"]

• coffee = "kona"

  tea = "mango"

  smoothie = "raspberry"

• coffee = "raspberry"

  tea = "mango"

  smoothie = "kona"

• coffee = "kona"

  tea = "kona"

  smoothie = "kona"

• coffee = ["kona", "mango", "raspberry"]

  tea = ["kona", "mango", "raspberry"]

  smoothie = ["kona", "mango", "raspberry"]

Which of the following assignment statements is equivalent to the following code snippet?

red, blue, green = "BLUE", "GREEN", "RED"

• red = "RED"

  blue = "BLUE"

  green = "GREEN"

• red = "BLUE"

  blue = "GREEN"

  green = "RED"

• red = ["BLUE", "GREEN", "RED"]

  blue = ["BLUE", "GREEN", "RED"]

  green = ["BLUE", "GREEN", "RED"]

• red = "BLUE"

  blue = "BLUE"

  green = "BLUE"