How do you prevent duplications/overwriting final data in Lambda architecture in case the streaming path was down for a while and then got fixed?
Sr Data Engineer Interview Questions
2,605 sr data engineer interview questions shared by candidates
How does python store data in memory?
Describe a situation from past your expriences where your a technical design solution proposed or implemented by you had negative repurcussions.
About Experience, Data Processing techniques, Data Handling Techniques
How can you process big CSV files that cannot be contained in the memory?
1. Previous experiences based on what's written on the CV and current work 2. Tools & skill 3. What will I do in my probation period
Got a simple data file and had to write a Jupyter notebook and answer very basic questions regarding the data, like what was the monthly min/max etc. Very unprofessional home assignment and also redicilous that it's so specific (Jupyter notebook and python).
No questions ! just said we are looking for 6+ years of experience
Simple question from string search.
what are window functions, explain rank and dense rank explain joins and no of outputs for each join for a given table, where vs having clause second highest salary for each department partition vs bucketing, when to choose each, python code to remove duplicate from a list list vs tuple vs dict. py thon code to find combinations from list [2,3,5] where sum is 8.
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