PCPP1 Library Modules Practice Question
What is the result of using '?' as a placeholder in sqlite3 for a parameter that is a Python list?
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
✓
It raises a ProgrammingError.
sqlite3 does not automatically expand lists; you must use a tuple of values or construct the SQL dynamically.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
It raises a ProgrammingError.
Why this is correct
Passing a list where a single value is expected (or using a single placeholder for multiple values) causes a mapping error.
- ✗
It automatically converts the list to a comma-separated string.
Why it's wrong here
It does not do this.
- ✗
It works as expected.
Why it's wrong here
It does not work for bulk insertion or 'IN' clauses without manual handling.
- ✗
It only takes the first element of the list.
Why it's wrong here
It does not implicitly slice the list.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Python Institute exam blueprint
This PCPP1 practice question is part of Courseiva's free Python Institute certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCPP1 exam.