Exam Certified Associate Developer for Apache Spark topic 1 question 107 discussion

Actual exam question from Databricks's Certified Associate Developer for Apache Spark

Question #: 107
Topic #: 1

[All Certified Associate Developer for Apache Spark Questions]

The code block shown below should create a single-column DataFrame from Scala list years which is made up of integers. Choose the response that correctly fills in the numbered blanks within the code block to complete this task.

Code block:

__1__.__2__(__3__).__4__

A. 1. spark
2. createDataFrame
3. years
4. IntegerType
B. 1. spark
2. createDataset
3. years
4. IntegerType
C. 1. spark
2. createDataset
3. List(years)
4. toDF
D. 1. spark
2. createDataFrame
3. List(years)
4. IntegerType

Show Suggested Answer

Suggested Answer: A 🗳️

by Sowwy1 at April 2, 2024, 1:53 p.m.

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Sowwy1

1 year, 3 months ago

I think it's C C. 1. spark 2. createDataset 3. List(years) 4. toDF it says "Scala list"

upvoted 2 times

deadbeef38

1 year ago

I think C is correct, but the result is a DataFrame with a single row whose value is a list of Integers, not a row for each element in the list. None of the other choices makes sense though.

upvoted 1 times

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Sowwy1

1 year, 2 months ago

It's part of official databricks questions: Question 44 Which of the following code blocks creates a single-column DataFrame from Scala Listyears which is made up of integers? A. spark.createDataset(years).toDF B. spark.createDataFrame(years, IntegerType) C. spark.createDataset(years) D. spark.DataFrame(years, IntegerType) E. spark.createDataFrame(years) --> and the answer here is A.

upvoted 2 times

carlosmps

1 year ago

spark.createDataset(years).toDF, to avoid confuse, it's answer C here, and answer A on official databruicks questions. :)

upvoted 1 times

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