PCEP Computer Programming and Python Fundamentals Practice Question
Which TWO statements about Python lists are true?
⚠ Common exam trap
Python Institute often tests the misconception that lists are immutable or fixed-size, confusing them with tuples or arrays in other languages, and also tests the false assumption that all elements must be of the same type.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Lists preserve the order of elements.
Python lists are ordered collections that maintain the insertion order of elements. This means the sequence in which items are added is preserved, and you can access them by their index positions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Lists preserve the order of elements.
Why this is correct
Lists are ordered.
- ✗
Lists have a fixed size once created.
Why it's wrong here
Lists can grow/shrink.
- ✓
Lists can be modified after creation.
Why this is correct
Lists are mutable.
- ✗
Lists are immutable.
Why it's wrong here
Lists are mutable.
- ✗
All elements in a list must be of the same type.
Why it's wrong here
Lists can hold different types.
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