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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 140 discussion

Actual exam question from Databricks's Certified Associate Developer for Apache Spark
Question #: 140
Topic #: 1
[All Certified Associate Developer for Apache Spark Questions]

Which of the following code blocks extracts the value for column sqft from the first row of DataFrame storesDF?

  • A. storesDF.first()[col("sqft")]
  • B. storesDF[0]["sqft"]
  • C. storesDF.collect(l)[0]["sqft"]
  • D. storesDF.first.sqft
  • E. storesDF.first().sqft
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Suggested Answer: E 🗳️
by siva1280 at March 31, 2024, 2:31 a.m.

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siva1280
8 months ago
E is correct
upvoted 1 times
...

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B (20%)
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