Interview preparation
PySpark interview questions
Every question starts with a direct answer you could say out loud, then explains why, when and what goes wrong. Tick questions off as you practise.
All PySpark questions
| # | Question | Difficulty | Type | Done |
|---|---|---|---|---|
| 1 | When should you avoid Python UDFs in PySpark? | Medium | conceptual, optimization | |
| 2 | When would you use a broadcast join in Spark? | Medium | conceptual, optimization |
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Concept review
- LessonBeginnerPySpark Aggregations, Pivot and Temporary Views
- LessonBeginnerPySpark DataFrames, Columns and Schemas
- LessonIntermediatePySpark Joins and Join Strategy
- LessonBeginnerPySpark Fundamentals for Data Engineers
- LessonBeginnerReading and Writing Data in PySpark: Parquet, CSV, JSON, ORC, Avro and JDBC
- LessonBeginnerPySpark Transformations vs Actions
- LessonIntermediatePySpark UDFs and Safer Alternatives
- LessonIntermediatePySpark Window Functions: Ranking, Lag and Running Totals