DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK · Question #50
DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK Question #50: Real Exam Question with Answer & Explanation
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Question
Which of the following code blocks returns a new DataFrame from DataFrame storesDF where column modality is the constant string "PHYSICAL"? Assume DataFrame storesDF is the only defined language variable.
Options
- AstoresDF.withColumn("modality", lit(PHYSICAL))
- BstoresDF.withColumn("modality", col("PHYSICAL"))
- CstoresDF.withColumn("modality", lit("PHYSICAL"))
- DstoresDF.withColumn("modality", StringType("PHYSICAL"))
- EstoresDF.withColumn("modality", "PHYSICAL")
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