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Python Lists Review Questions – Test Your Understanding

Reinforce your Python list knowledge with structured review questions. Cover key concepts like list creation, indexing, slicing, and manipulation with clear, beginner-friendly Q&A.

🔍 Review Questions

  1. What is a list in Python and how is it created?

    2. Answer

    A list is an ordered, mutable collection of elements enclosed in square brackets []. Lists are created by placing comma-separated values between square brackets or using the list() constructor.

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  2. How does Python list indexing work?

    3. Answer

    Python lists use zero-based indexing where the first element is at index 0. Negative indices count backward from the end (-1 is last element).

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  3. What is list slicing and what is its syntax?

    4. Answer

    Slicing extracts a portion of a list using the syntax list[start:stop:step]. Start is inclusive, stop is exclusive, and step determines the interval.

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  4. What are the key differences between append(), extend(), and insert() methods?

    5. Answer

    - append(): Adds a single element to the end - extend(): Adds all elements from an iterable to the end - insert(): Adds an element at a specific position

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  5. How do you remove elements from a list in Python?

    6. Answer

    Common removal methods: - remove(): Removes first matching value - pop(): Removes item at given index (default last) - del: Deletes item(s) by index/slice - clear(): Empties entire list

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