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Data pipelines and data quality
Data Analyst
Data pipelines and data quality questions
10 questions on Data pipelines and data quality for data analysts, easiest first.
Easy
2
Spotting wrong mobile numbers
easy
A dropdown for status values
easy
Medium
4
Revenue doubled after a join
medium
Report total does not match finance
medium
A second dropdown that depends on the first
medium
A dropdown that grows with the data
medium
Hard
4
Daily numbers do not match
hard
Latest order changes between runs
hard
Uneven groups in a 50/50 test
hard
Invalid values despite validation
hard
