What do you understand by worker node?
List the popular use cases of Apache Spark?
How can we launch Spark application on YARN?
What is client mode in spark?
Can we run spark on windows?
What is transformation in spark?
Is databricks a database?
What is difference between map and flatmap?
What is a dataset? What are its advantages over dataframe and rdd?
Explain how RDDs work with Scala in Spark
What purpose would an engineer use spark?
What are the ways to run spark over hadoop?
What is spark master?
How does groupbykey work in spark?
Where does spark plug get power?