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Big Data Developer Interview Questions
275 big data developer interview questions shared by candidates
asked about pyspark , hive, hadoop, sql
Cache and persist
Describe the technical details of a software application which wasn't clear enough when explained by the interviewer.
how do you defined success? detail about your experience
Did you have conflict with your lead about approaches to solve a problem,did you suggest your approach, which approach was taken ,did you defend your idea.
Python coding question that lasted 90mins 1. OOP Concepts 2. Palindrome 3. Odds aggregation using functions 4. Numbers operation 5. Count single char per string
I was given four (iirc) Python challenges from HackerRank and over an hour to do them. It was plenty of time and I finished quite quickly. I'd say they were on the easier/ average end of the spectrum -- they took some thought but they weren't the sort of questions that'd stump you once you've got the basics down.
1. what is decorator in python 2. what is generator in python 3. what is the difference between multithreading and multiprocessing 4. code in python, explain and find the bugs
1) Find the average salary of the each location and filter greater than 25000 Name Age Location Salary Sai 23 Bangalore 25000 Ram 24 Chennai 24000 Ritu 23 Bangalore 26000 Ashish 25 Hyderbad 28000 Vijay 26 Hyderbad 23000 Vishal 27 Chennai 28000 2) I/P = [3,2,1] O/P = [2,3,6] Write a programe using python/pyspark or scala 3)Asked about project and tools on which i have worke on. 4)How do you convert unstructured data to structured. 5)How do you deal with complex data and how do you flatern it asked methods
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