DA0-002 Data Governance Practice Question
An analyst finds that a key metric drops significantly after a data pipeline update. How should the analyst proceed?
⚠ Common exam trap
A common mix-up: candidates choose to revert the pipeline immediately (Option C) out of panic, but the DA0-001 exam emphasizes a systematic troubleshooting approach over reactive rollbacks.
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
✓
Compare data before and after update to identify discrepancies
The first step in diagnosing a sudden metric drop after a pipeline update is to perform a controlled comparison of pre- and post-update data. This involves validating data schemas, row counts, and distribution statistics to pinpoint whether the update introduced a transformation error, a filtering issue, or a data type mismatch. Without this comparison, the analyst cannot determine if the drop is due to a genuine data change or a pipeline defect.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Compare data before and after update to identify discrepancies
Why this is correct
Comparison helps pinpoint the source of the drop.
- ✗
Assume it's a seasonal effect
Why it's wrong here
Assuming seasonality ignores the timing of the update.
- ✗
Revert the pipeline immediately
Why it's wrong here
Reverting without understanding the cause may lose valid changes.
- ✗
Document the drop and report it
Why it's wrong here
Reporting without investigation may lead to unnecessary alarm.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DA0-002 practice question is part of Courseiva's free CompTIA 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 DA0-002 exam.