Programming Concepts Quiz

What is the main purpose of a for loop?

• To store a collection of items.

• To repeat a block of code a specific number of times.

• To make a decision between two options.

• To define a reusable block of code.

Which of the following correctly defines a function named start_game?

• function start_game()

• define start_game():

• def start_game():

• start_game = function()

What does the if statement do in Python?

• It stores a value in a variable.

• It repeats code until a condition is false.

• It runs a block of code only if a certain condition is true.

• It gets input from the user.

How would you access the ghost emoji '👻' in this 2D list? game_map = [ ['👽', '👻'], ['👾', '👽'] ]

• game_map[2][2]

• game_map[1][2]

• game_map[1][1]

• game_map[2][1]

What is a 2D list?

• A list that can only hold two items.

• A list that contains other lists as its elements.

• A special type of list that only stores numbers.

• A list that cannot be changed after it is created.

If you wanted to create a 3x3 tic-tac-toe board, which 2D list is structured correctly?

• board = [ "X", "O", "X", "O", "X", "O", "X", "O", "X" ]

• board = [ ["X", "O"], ["X", "O"], ["X", "O"] ]

• board = [ ["-", "-", "-"], ["-", "-", "-"], ["-", "-", "-"] ]

• board = { "row1": ["-", "-", "-"], "row2": ["-", "-", "-"], "row3": ["-", "-", "-"] }

How do you get the number of rows in a 2D list called data?

• size(data)

• data.rows()

• len(data)

• len(data[0])

What is the index of the very first item in any 2D list?

• [1][1]

• [1][0]

• [0][0]

• [0]

If you wanted to change the player's position '👽' to an empty space ' ' in map[2][3], what code would you write?

• map(2, 3) = ' '

• map[2][3] = ' '

• map.update(2, 3, ' ')

• map[2][3].replace('👽', ' ')

Which type of loop is best for iterating through every single item in a 2D list?

• A nested loop.

• A single while loop.

• A single for loop.

• An if/else statement.