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DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK · Question #55
DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK Question #55: Real Exam Question with Answer & Explanation
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Perform DataFrame transformations
Question
Which of the following operations can be used to return a DataFrame with no duplicate rows? Please select the most complete answer.
Options
- ADataFrame.distinct()
- BDataFrame.dropDuplicates() and DataFrame.distinct()
- CDataFrame.dropDuplicates()
- DDataFrame.drop_duplicates()
- EDataFrame.dropDuplicates(), DataFrame.distinct() and DataFrame.drop_duplicates()
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Topics
#DataFrame API#Duplicate Data#PySpark#Data Cleaning