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Interview quiz track

First 2 free Intermediate Python

Python – Data Structures

Practice Python data structures interview questions covering lists, dictionaries, sets, stacks, and queues. Write short code or explanations and receive feedback on correctness and efficiency. Ideal for junior and mid-level developer interview prep. First 2 questions are free with full feedback.

  • Level Intermediate
  • Questions 12
  • Python
  • data structures
  • intermediate
  • interview practice

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Sample python – data structures interview questions

Preview 6 questions from this track in quiz order. In the full quiz you answer one at a time — type or speak — then get a score and feedback.

  1. When would you use a set instead of a list?

    What a strong answer includes

    Fast lookups and uniqueness.

  2. How do you implement a stack in Python?

    What a strong answer includes

    Uses a list with append and pop.

  3. Write a function to check if two strings are anagrams.

    What a strong answer includes

    Uses sorting or a counter/dictionary.

  4. How do you find the most frequent element in a list?

    What a strong answer includes

    Uses a dictionary or Counter.

  5. Explain the difference between a list and a deque.

    What a strong answer includes

    Deque is efficient for adding/removing from both ends.

  6. Write a function to reverse a string using a stack.

    What a strong answer includes

    Correct stack-based approach.