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Interview questions · hard
How do you handle late-arriving data in Spark Structured Streaming?
What is the small-file problem in Spark, and how do you solve it?
How do you optimize Spark jobs for better performance? Mention at least 5 techniques.
Explain the trade-offs between batch and real-time data processing. Provide examples of when each is appropriate.
Retrieve the most recent sale_timestamp for each product (Latest Transaction).
How would you implement a sliding window aggregation in Spark Structured Streaming?
Briefly introduce yourself and walk us through your journey as a Data Engineer so far.
Describe a time you had to learn a new technology quickly to solve a problem.
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