
DatabricksCertified Associate Developer for Apache Spark
DataFrame Transformations ASSOCIATE-DEVELOPER-APACHE-SPARK Practice Questions (Page 5)
Part of the Developing Apache Spark™ DataFrame/DataSet API Applications domain, which accounts for 30% of the ASSOCIATE-DEVELOPER-APACHE-SPARK exam. Databricks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~11–18 in this domain), expect 2–4 from this objective — we provide 27 practice questions to prepare you well beyond it. (estimate)
Questions 21–25
- 21
Which method of SparkSession creates a DataFrame from a sequence or list?
Select an answer first - 22
Which method returns the first n rows of a DataFrame as an Array[Row]?
Select an answer first - 23
Which method removes one or more columns from a DataFrame?
Select an answer first - 24
Which method removes duplicate rows based on a subset of columns?
Select an answer first - 25
Which method is an alias for orderBy in the DataFrame API?
Select an answer first
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