Your question is Resolving Data Consistency Issues. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
What challenges have you encountered with data consistency, and how did you resolve them?
Describe a practical example involving an ETL, ELT, batch, or streaming pipeline. Cover the symptoms, root cause, detection and validation methods, corrective design, and how you prevented recurrence. Be prepared to discuss idempotency, duplicate or missing records, schema changes, late-arriving data, reconciliation, and operational monitoring.