The OOP Pillars Exam
A medium Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- medium
- Seniority
- L3
Interview Prompt
Given a list of [animal_type, name] pairs, instantiate the appropriate subclass of an abstract Animal class (with an abstract speak()). The 'dog' subclass speaks 'Woof!'; the 'cat' subclass speaks 'Meow!'. For each pair, build the right subclass instance and collect its speak() output as the string '{name} says: {sound}!'. Return the list of these strings in the same order as the input. Implement inheritance and polymorphism correctly: the driver must not call speak() on the raw pair - it must construct the matching Animal subclass first.
Summary
Four principles, one class hierarchy - show you know all of them.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your python solution with real code execution
- Get instant feedback and a hire/no-hire decision