1. Quiz-tion: Which of the following best describes sparklyr ?
   1. It is the R backend (package) for Spark
   2. It is the R backend for Spark and H2O
   3. It is a package in tidyverse used for Spark data analysis
2. Quiz-tion: How can you read a CSV file and create a Spark DataFrame ?
   1. Using spark_create_csv
   2. You cannot read CSV files in Spark directly
   3. Using spark_read_csv
3. Quiz-tion: What is MLlib?
   
   1. H2O machine learning library
   2. ML libraries in CRAN
   3. Spark machine learning library

Answers—executing the following code will give you the answers to the quiz questions:

set.seed(12)
round(runif(3,1,3))