Cisco Data Engineer Interview Questions
The questions to prepare for a Cisco Data Engineer interview. Questions from real interview reports rank first. Updated weekly.
Calculate each Cisco user’s rolling 7-day ad CTR using daily aggregation, date spines, CTEs, and window functions.
CiscoCalculate Webex daily active users and seven-day rolling retention using PostgreSQL CTEs, joins, and distinct aggregations.
CiscoExplain what CTEs are and their advantages in SQL queries.
CiscoAggregate monthly sales by product category and use LAG to calculate month-over-month changes.
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Benjamin MooreDesign a streaming pipeline and justify when Kafka, Flink, or both should be used for ingestion, stateful processing, replay, and low-latency delivery.
CiscoApproach for safely backfilling missing data while preserving correctness, idempotency, and data quality.
CiscoEvaluate when a pipeline should use stream processing versus scheduled batch based on latency, cost, complexity, and data quality needs.
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Tests interval merging logic and correctness on session-based data transformations.
CiscoTests your ability to implement core MapReduce concepts and handle data flow correctly.
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