Certified Data Analyst Associate Spark Practice Questions

When creating a Spark DataFrame in Databricks, which of the following methods can be used?

• AA. spark.createDataFrame()
• BB. spark.read.json()
• CC. All of the above
• DD. spark.read.csv()

You are asked to optimize a Spark job in Databricks. Which approach can you take?

• AA. Increase shuffle partitions
• BB. Decrease executor memory
• CC. Use DataFrames
• DD. Use Data RDDs

A data analyst needs to save intermediate results in a Spark job. What should they use?

• AA. RDD persistence
• BB. Delta Lake
• CC. Temp views
• DD. DataFrameWriter