What is dataframe in spark?
Name a few companies that use Apache Spark in production?
what do you mean by the worker node?
List various commonly used machine learning algorithm?
Explain the operation transformation and action in Apache Spark RDD?
Why is Transformation lazy in Spark?
What is cluster in apache spark?
Which all languages Apache Spark supports?
What is spark written?
Name some companies that are already using Spark Streaming?
Can you explain how you can use Apache Spark along with Hadoop?
What are spark stages?
What is a tuple in spark?
Why do we need rdd in spark?
What is executor in spark?