What are the 3 V's
Big Data Engineer Interview Questions
1,228 big data engineer interview questions shared by candidates
Let's assume you have 100 partitions in Spark, and by mistake, you used Coalesce(200) to increase partitions to 200. What will happen?
Print every number divisible by both 3 and 5 up to 100 Sample output: 0 15 30 45 60 75 90
Data Structures and Algorithms and RDBMS
Implement a poorly specified and undefined variation of a Quad-tree and write a parsing function to initialize it from a 2d array.
Tell me about your project experience in IoT and Big Data
can you tell us what kind project do you have and successfully delivered?
A couple of questions were related to formats to store data: what is better to use if a schema changes - frequently/not frequently, add columns/change columns, schema evolution.
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My job title and If i want to get hired
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