DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK · Question #156
DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK Question #156: Real Exam Question with Answer & Explanation
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Question
Which of the following code blocks fails to return the number of rows in DataFrame storesDF for each distinct combination of values in column division and column storeCategory?
Options
- AstoresDF.groupBy((col("division"), col("storeCategory")]).count()
- BstoresDF.groupBy("division").groupBy("storeCategory").count()
- CstoresDF.groupBy(["division", "storeCategory"]).count()
- DstoresDF.groupBy("division", "storeCategory").count()
- EstoresDF.groupBy(col("division?, col("storeCategory")).count()
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