Implement quality assurance
3 practice questions under this official exam objective (DA0-002), each with the answer key, an option-by-option explanation and instant feedback.
Questions under this objective
3 total · page 1 of 1Which Inconsistency Appears in the January Sales Table?
This DA0-002 data-quality question shows a January sales table and asks which inconsistency it contains, with duplication, redundancy, missing values
Which SQL Query Returns Accurate Employee Head Count
This SQL question shows that counting raw rows in the JOBS table double-counts employees who hold multiple jobs, inflating the head count. The page es
Validating Dashboard Data with Monitoring Alerts
When a dashboard keeps breaking, the durable fix is proactive validation of the data pipeline rather than repeated manual firefighting. This CompTIA D