03.02 Standard Data Types - Quiz

Check your understanding

1. Which Python data type would be most appropriate for storing a student’s age?

   • str (string)
   • int (integer) { data-correct }
   • float
   • bool (boolean)

2. What is the result of this Python code: bool("")?

   • True
   • False { data-correct }
   • Error
   • None

3. Which data type should you use to store a product price like $19.99?

   • int (integer)
   • str (string)
   • float { data-correct }
   • bool (boolean)

4. What happens when you convert the float 3.9 to an integer using int(3.9)?

   • 3 { data-correct }
   • 4
   • 3.9
   • Error

5. Which of these would be stored as a string (str) data type?

   • A person’s age: 17
   • A test score: 85.5
   • A postal code: “2000” { data-correct }
   • Whether someone passed: True

6. What Python module do you need to import to work with dates?

   • time
   • calendar
   • datetime { data-correct }
   • date

7. Which logical operation would you use to check if a student is both enrolled AND passing?

   • or
   • and { data-correct }
   • not
   • ==

8. What is the correct way to create a date object for January 15, 2006?

   • date(“2006-01-15”)
   • date(2006, 1, 15) { data-correct }
   • date(15, 1, 2006)
   • date.new(2006, 1, 15)

9. Which conversion will cause an error?

   • int(“42”)
   • float(“3.14”)
   • int(“3.14”) { data-correct }
   • str(42)

10. For a student record system, which data type combination is most appropriate?

    • name: str, age: str, grade: str, enrolled: str
    • name: int, age: int, grade: int, enrolled: int
    • name: str, age: int, grade: float, enrolled: bool { data-correct }
    • name: bool, age: float, grade: str, enrolled: int

11. What does isinstance(42, int) return?

    • True { data-correct }
    • False
    • 42
    • int

12. Which data type would be best for storing whether a user is currently logged in?

    • str (“yes” or “no”)
    • int (1 or 0)
    • bool (True or False) { data-correct }
    • float (1.0 or 0.0)