Hi, I have a question regarding the exam. If the question does not specify the output format (json, parquet, etc..), does it mean I can use any of the available options in spark? For example, would the output (which I will export via my Spark code) in hdfs "part0000-.....gz.parquet" be valid (assuming the data inside complies with the question conditions/criteria). Also, may I used DataFrames & Spark SQL to process the datasets, instead of plain RDD if the question does not specify that as well? Thanks ... View more