Certified Associate Developer for Apache Spark Exam - Question 34

Question

Which of the following operations returns a GroupedData object?

Examice · Accepted Answer

The DataFrame.groupBy() method is used to group the DataFrame based on one or more columns, and it returns a GroupedData object, which can then be used to perform various aggregation operations on the grouped data. Options A, B, C, and E do not return a GroupedData object.

outwalker · Answer

D. DataFrame.groupBy()

The groupBy() method is used to group the DataFrame based on one or more columns, and it returns a GroupedData object, which can then be used to perform various aggregation operations on the grouped data. Options A, B, C, and E do not return a GroupedData object.

azure_bimonster · Answer

.groupBy() is correct one

Certified Associate Developer for Apache Spark Exam - Question 34

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