PCPP2 Database Access Practice Question
When using the MongoDB aggregation framework in PyMongo, which stage should be used to filter documents based on a condition?
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
✓
$match
The $match stage is used to filter documents in an aggregation pipeline.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
$group
Why it's wrong here
$group is used for aggregation/summarization.
- ✗
$project
Why it's wrong here
$project is used for reshaping documents.
- ✓
$match
Why this is correct
$match is the standard filtering stage.
- ✗
$filter
Why it's wrong here
$filter is an aggregation operator, not a pipeline stage.
About these practice questions
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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 PCPP2 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 PCPP2 exam.