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Exam Certified Associate Developer for Apache Spark All Questions

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

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 🗳️

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Chosen Answer:
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mehroosali
1 year ago
Selected Answer: C
Its C not B
upvoted 1 times
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newusername
1 year 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
1 year, 3 months ago
Selected Answer: B
in select you can use * instead of the column names
upvoted 1 times
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