CodeHS Python Unit 3 Quiz Review

What is the output of the following program? Assume the user enters “Florence”, then “Fernandez”.

• Fernandez Florence

• FlorenceFernandez

• Florence Fernandez

• None of the Above

What does the following program print?

• <type 'str'>

• <type 'int'>

• <type 'float'>

• The program crashes and doesn’t print anything.

Which of the following options is the best way to get a number from the user that you plan to use in a mathematical equation?

• num = str(input(“Enter a number: “))

• num = number(input(“Enter a number: “))

• num = input(“Enter a number: “)

• num = int(input(“Enter a number: “))

Which one of the statements below will cause an error?

• ans = “hi” * 8

• ans = “hi” + 9

• ans = “hi” + “hi” + “hi”

• ans = (“a” * 4) + “b”

What is the difference between a binary operator and a unary operator?

• A computer can use binary operators, but it cannot use unary operators.

• A unary operator needs two things, while a binary operator only needs one.

• A binary operator needs two things, while a unary operator only needs one.

• Binary operators are used for arithmetic expressions, while unary operators are for strings.

What is the final result of the expression 7 / 2 + 6?

• 0

• 9

• 9.5

• 0.875

Which of the following choices is a properly formed Python variable name, meaning it is both legal in the Python language and considered good style?

• user_age

• uSeRaGe

• user!age!

• 1user_age

What is the final result of the expression 2**3?

• 6

• 8

• 2

• That is not a valid Python expression.

Choose the option that correctly prints out the variable(s).

• x = "codehs" print(int(x))

• num = 8 print("num")

• name = "Alyx" age = 32 print(name + "is " + age)

• language = "Python" print("I'm learning " + language)

Choose the print statement below that will cause an error. Assume that num has the value '6', and name has the value 'Isabella'.

• print(name + ":" ) print(num)

• print(name + " wants " + "num " + "candies")

• print(name + ": " + str(num))

• print(name + ": " + num)