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Exam Certified Associate Developer for Apache Spark topic 1 question 34 discussion

Actual exam question from Databricks's Certified Associate Developer for Apache Spark
Question #: 34
Topic #: 1
[All Certified Associate Developer for Apache Spark Questions]

Which of the following operations returns a GroupedData object?

  • A. DataFrame.GroupBy()
  • B. DataFrame.cubed()
  • C. DataFrame.group()
  • D. DataFrame.groupBy()
  • E. DataFrame.grouping_id()
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Suggested Answer: D 🗳️
by outwalker at Nov. 8, 2023, 10:43 p.m.

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azure_bimonster
8 months, 4 weeks ago
Selected Answer: D
.groupBy() is correct one
upvoted 2 times
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outwalker
12 months ago
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.
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