Explain the key components of Apache Spark’s architecture. What are Spark Executors and Spark Driver? How do they communicate? Can you describe the difference between a DataFrame and an RDD in Spark? What are the main functions of the Spark Catalyst Optimizer? How does Spark handle fault tolerance? Explain the concept of lazy evaluation in Spark. Why is it beneficial?
Technical and Logical question
Questions on HTTP caching , problem solving and design skills
Do you sketch your designs first?
Tried to conjure up scenarios and started to nitpick and interrupt the flow of answer
Go through your CV. Explain projects you have worked on.
What is queue processor and explain how it is different from agents
Day to day work with current job
The most difficult question was in regards to a situation in which there was some technical issues and I was asked how I would handle the situation and resolve the issue.
Testing strategies and Validation process
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