Explain Accumulator in Spark?
What is Speculative Execution in Apache Spark?
Which is better scala or python for spark?
How do I optimize my spark code?
Why do we use spark?
Is apache spark a database?
In how many ways can we use Spark over Hadoop?
Explain how RDDs work with Scala in Spark
Name three data source available in SparkSQL
What is scala and spark?
What are the ways in which one can know that the given operation is transformation or action?
Discuss the role of Spark driver in Spark application?
Explain about trformations and actions in the context of rdds?
What do you mean by Speculative execution in Apache Spark?
is it necessary to install Spark on all nodes while running Spark application on Yarn?