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Data engineering interview questions
Describe the role of a DAG Scheduler in PySpark
Describe the role of a workflow orchestrator like Airflow in a data pipeline.
Describe the stages of a Spark job and strategies to optimize Spark performance for large datasets.
Describe your approach to managing offsets in Kafka.
Design an ETL pipeline using Kafka and Spark Streaming
Difference between Presto vs. Spark underlying architecture
Discuss Delta Logs file format and its significance.
Discuss common transformations used in Spark code.
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