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Exam Certified Associate Developer for Apache Spark topic 1 question 65 discussion

Actual exam question from Databricks's Certified Associate Developer for Apache Spark
Question #: 65
Topic #: 1
[All Certified Associate Developer for Apache Spark Questions]

Which of the following operations can be used to return a new DataFrame from DataFrame storesDF without columns that are specified by name?

  • A. storesDF.filter()
  • B. storesDF.select()
  • C. storesDF.drop()
  • D. storesDF.subset()
  • E. storesDF.dropColumn()
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Suggested Answer: C 🗳️
by cookiemonster42 at Aug. 28, 2023, 6:43 p.m.

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mehroosali
5 months, 1 week ago
Selected Answer: C
Its C not B
upvoted 1 times
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newusername
5 months, 1 week ago
Selected Answer: C
you should be careful; with the question. The specified columns should not be in the new DF therefore it is drop , you specify in drop what you want to remove and they won't be in the new DF
upvoted 1 times
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cookiemonster42
7 months, 3 weeks ago
Selected Answer: B
in select you can use * instead of the column names
upvoted 1 times
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