Valid Associate-Developer-Apache-Spark Dumps shared by EduDump.com for Helping Passing Associate-Developer-Apache-Spark Exam! EduDump.com now offer the newest Associate-Developer-Apache-Spark exam dumps, the EduDump.com Associate-Developer-Apache-Spark exam questions have been updated and answers have been corrected get the newest EduDump.com Associate-Developer-Apache-Spark dumps with Test Engine here:
The code block displayed below contains an error. The code block should read the csv file located at path data/transactions.csv into DataFrame transactionsDf, using the first row as column header and casting the columns in the most appropriate type. Find the error. First 3 rows of transactions.csv: 1.transactionId;storeId;productId;name 2.1;23;12;green grass 3.2;35;31;yellow sun 4.3;23;12;green grass Code block: transactionsDf = spark.read.load("data/transactions.csv", sep=";", format="csv", header=True)
Correct Answer: E
Explanation Correct code block: transactionsDf = spark.read.load("data/transactions.csv", sep=";", format="csv", header=True, inferSchema=True) By default, Spark does not infer the schema of the CSV (since this usually takes some time). So, you need to add the inferSchema=True option to the code block. More info: pyspark.sql.DataFrameReader.csv - PySpark 3.1.2 documentation