Your question is Resolve a Critical Data Quality Issue. 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).
Describe a time you identified a critical data quality issue. What steps did you take to resolve it?
Discuss the production pipeline context, how you detected and measured the issue, how you isolated its root cause, and how you protected downstream consumers. Include remediation, validation, backfill or correction strategy, stakeholder communication, and controls added to prevent recurrence. Where relevant, reference tools such as Apache Airflow, dbt, Snowflake, Apache Spark, Kafka, Great Expectations, or Grafana.