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Interview questions · hard
Can you explain the architecture of Apache Spark and its components?
Explain your project and the technologies used so far.
Explain the DAG in Spark and how it plays a role in execution.
Have you worked with UDFs in Spark? When do you use them, and how do they differ from built-in functions?
How many stages are created in a Spark job, and how are they formed?
How would you handle unstructured data in Hive?
What is data shuffling in Spark, and how do you minimize its impact on job performance?
Explain how Spark handles fault tolerance. How does it recover from node failures?
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