Are you proficient in Spark fundamentals?
1Times asked
May 2026Last seen
May 2026First seen
💡 Model Answer
I have worked with Spark for over two years, building ETL pipelines and performing data transformations using both RDDs and DataFrames. I am comfortable with Spark SQL, window functions, and writing UDFs in Python. In one project, I optimized a Spark job that processed 10TB of log data by partitioning on date and using broadcast joins, reducing runtime from 45 minutes to 12 minutes. I also have experience with PySpark Streaming and integrating Spark with Kafka.
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