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Questions tagged window · hard
Joins and window functions - INNER, LEFT, RIGHT, FULL OUTER, ROW_NUMBER(), RANK(), DENSE_RANK()
How do you handle late-arriving data in Spark Structured Streaming?
Briefly explain the architecture of Kafka.
Retrieve the most recent sale_timestamp for each product (Latest Transaction).
Explain the difference between batch and streaming data processing in Data Fusion.
How would you implement a sliding window aggregation in Spark Structured Streaming?
Implement a Spark job to find the top 10 most frequent words in a large text file.
What is the small-file problem in Spark, and how do you solve it?
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