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Interview questions
How do you optimize Spark jobs for performance?
How would you implement a sliding window aggregation in Spark Structured Streaming?
What is Spark's Catalyst Optimizer? Explain its stages.
What is the difference between Spark RDDs, DataFrames, and Datasets?
When and how do you use Broadcast Join in Spark?
How do you keep yourself updated with new data engineering trends?
What data storage would you use for real-time analytics? Why?
What motivates you to work in data engineering?
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