phData Data Engineer Interview Questions
The questions to prepare for a phData Data Engineer interview. Questions from real interview reports rank first. Updated daily.
Determine whether an integer is prime using optimized trial division up to its square root.
phDataReverse the order of words in a sentence while preserving each word's characters.
phDataDesign Zomato's backend for restaurant discovery, ordering, payments, and delivery coordination with ML-powered ranking.
phDataExplain Spark's driver, executors, cluster manager, DAG execution, shuffles, and fault tolerance.
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phDataOptimize a PostgreSQL reporting query by reducing intermediate rows, using appropriate joins, and calculating monthly performance efficiently.
phDataApproach for detecting and mitigating skew in PySpark pipelines using partitioning, join strategies, and runtime monitoring.
phDataTests ability to plan for scale, performance, and reliability tradeoffs in cloud data platforms.
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