Step 1) Got a phone call from HR saying that my CV has been shortlisted and they want to schedule the first round of F2F discussion.

Step 2) First F2F round: It was mostly regarding the Hadoop stack and the flow of its components, and the projects I have worked on so far.

Step 3) Second F2F round: It had mostly problem-solving questions on data structures, or if people are from an electronics background in education like me, then normal GATEs-based problem-solving questions are asked.

1. Storm and Kafka

2. Spark Streaming and Structured Streaming

3. Spark RDD, DataFrame, and Dataset

4. Partitioning and bucketing scenarios

5. SQL functions practice

6. Test cases

7. Spark HiveContext, SQLContext, and SparkSession differences

8. Data modeling for Big Data

9. Dimension tables and fact tables

10. Data crunching

11. Web services and microservices applications

12. 1000 files with particular sets of ID and store ID columns, and the final outcome should be like:

13. Count of stores for repeating IDs.

14. So, IDs and stores are repeating.

15. How to deal with 1000 files?

16. How SQL query steps work?

17. Algorithm with a Spark program.

18. How will it check job dependency? First completes, then only completes the second one.

19. Oozie scheduler.

20. Look into Titan GLM code and Spark functions.