DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK · Question #57
DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK Question #57: Real Exam Question with Answer & Explanation
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Question
The code block shown below should return a new DataFrame with the mean of column sqft from DataFrame storesDF in column sqftMean. Choose the response that correctly fills in the numbered blanks within the code block to complete this task. Code block: storesDF.__1__(__2__(__3__).alias("sqftMean"))
Options
- A1. agg
- B1. withColumn
- C1. agg
- D1. mean
- E1. agg
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