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DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK · Question #153

DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK Question #153: Real Exam Question with Answer & Explanation

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Working with Spark DataFrames

Question

Which of the following code blocks returns a new DataFrame with column storeReview where the pattern "End" has been removed from the end of column storeReview in DataFrame storesDF? A sample DataFrame storesDF is below:

Options

  • AstoresDF.withColumn("storeReview", col("storeReview").regexp_replace(" End$", ""))
  • BstoresDF.withColumn("storeReview", regexp_replace(col("storeReview"), " End$", ""))
  • CstoresDF.withColumn("storeReview? regexp_replace(col("storeReview"), " End$"))
  • DstoresDF.withColumn("storeReview", regexp_replace("storeReview", " End$", ""))
  • EstoresDF.withColumn("storeReview", regexp_extract(col("storeReview"), " End$", ""))

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Topics

#Spark DataFrames#Column Functions#Regular Expressions#String Manipulation
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