Top 50 data auditing Interview Questions
The most frequently asked data auditing questions across all roles and companies, ranked by real interview frequency. Updated daily.
Audit claims for missing members, invalid amounts, and payment totals that exceed billed amounts.
Healthfirst (New York)
PhysicsXBBritvic Soft DrinksFind every user with the highest query count in audit.txt using PostgreSQL aggregation and joins.
Walmart Global Tech
Walmart LabsCompare partner-reported and internal daily counts, then flag discrepancies and show the prior comparison status.
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Deduplicate customer records with ROW_NUMBER, retaining the latest record and reporting duplicate counts.
IBM
NewWave Telecom & TechnologiesIdentify the latest reproducible analysis runs and summarize their review history with PostgreSQL joins, aggregation, and a CTE.
HelloFresh
BookingIdentify repeated claim tuples and report each duplicated combination with its occurrence count.
Optum
UnitedHealth GroupIdentify every row whose three-column combination occurs more than once, including the original row identifier.
JefferiesFind non-null salary amounts that occur more than once, including their occurrence counts.
TIAA