Exam Certified Associate Developer for Apache Spark topic 1 question 40 discussion

Option E is correct. Code example below: from pyspark.sql import SparkSession from pyspark.sql.functions import col, asc, desc from pyspark.errors import PySparkTypeError spark = SparkSession.builder.appName("MyApp").getOrCreate() data = [ (0, 43161, "A"), (1, 51200, "A"), (2, None, "B"), (3, 78367, "B"), (4, None, "C"), ] storesDF = spark.createDataFrame(data, ["storeID", "sqft", "division"]) storesDF.printSchema() # root # |-- storeID: long (nullable = true) # |-- sqft: long (nullable = true) # |-- division: string (nullable = true)

E. The printSchema member of DataFrame is an operation and needs to be followed by parentheses. The correct code block should be storesDF.printSchema() with parentheses to indicate that it's a method call.