How do you find the largest kth element in a Table with SQL?
Big Data Consultant Interview Questions
1,784 big data consultant interview questions shared by candidates
Video interview with a technical manager about how to retrieve data from big data platform, and how to design a Datawarehouse for a specific situation
Data structure questions on array, linked list etc
About data warehousing, SQL queries, pyspark
1) Programming language - differences between them for data analysis 2) Questions on variance 4) What's the first thing you do when looking at a new data-set? 5) Specific R, Python, etc. questions
Name one of the projects you completed using Python
Why you need to move out. What size of your data dealing. why you took BIG DATA STREAM?
Various coding languages were tested like Python, R, SQL and so on depending on your profile. They can see you input in real time to ask follow up questions.
OOP related questions Algorithms and data structures related coding problems
Discussion around current project and challenges around it. How would you scale the current infrastructure? System design related questions. Write a program to find x number of max elements from m number of sorted arrays. General discussion around your project. Write spark code to find the unique routes from a given flight routes table where there could be individual entry for MumBai --> Kolkata/Kolkata--> Mumbai Write a spark scala code to get the employee who earns highest among employess whose salary is more than avg salary and age is less than the avg age. What is master in Spark? What does appName do in Spark? How the local scheduler work in Apache Airflow? How it differs from Kubernetes? Questions around airflow architecture. Given two programs for word count tell the difference between reduceBykey and groupbyKey?
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