Python List Comprehensions Quiz

Why does Python provide list comprehensions?

• To increase the length of code

• To simplify the process of creating lists

• To make code more complex

• To make lists immutable

What surrounds a list comprehension in Python?

• Brackets

• Angle brackets

• Curly braces

• Parentheses

In a list comprehension, what follows the expression?

• A variable assignment

• A function call

• A for loop

• A while loop

How would you create a list of the squares of the first 100 positive integers using list comprehensions?

• [i**2 for i in range(0, 100)]

• [i*2 for i in range(1, 101)]

• [i^2 for i in range(1, 101)]

• [i**2 for i in range(1, 101)]

What operator is used to find the remainder when dividing by a number in Python?

• /

• //

• %

• **

How can you filter a list comprehension to include only certain items?

• Using a break statement

• Using a while loop

• Using a continue statement

• Using an if clause

Which method can be used to check if a string starts with a specific letter?

• endswith()

• find()

• startswith()

• contains()

How would you perform scalar multiplication on a list representing a vector?

• Using the * operator directly

• Using the + operator

• Using a for loop

• Using a list comprehension

What is the Cartesian product of two sets?

• The sum of the sets

• The difference of the sets

• The set of all possible pairs from the two sets

• The intersection of the sets

Who is the Cartesian product named after?

• Albert Einstein

• Rene Descartes

• Isaac Newton

• Carl Gauss