Apache Spark quiz

Test your Apache Spark knowledge with a free interactive quiz — 51 questions with answers and explanations. No signup needed to play.

What is the purpose of the .explain() method on a DataFrame?

1. What is the purpose of the .explain() method on a DataFrame?
2. What does createOrReplaceTempView() do?
3. What is Apache Spark?
4. What is the purpose of df.printSchema()?
5. Which of these best describes a Spark "job"?
6. What does df.groupBy("category").count() return?
7. What does the following code do? df.filter(df.amount > 100).select("customer_id", "amount")
8. What does .cache() do to a DataFrame?
9. What triggers an actual Spark job to run?
10. What is a SparkSession?
11. Which of the following is a transformation, not an action?
12. What does RDD stand for in Spark?

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