questions from skills interview

Author: absognety

Accenture/README.md

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+# Data Engineer - Round 1 (Skills Interview):  
++ Can a python class have 2 __init__ methods?  
++ Questions on class methods (staticmethods and classmethods).  
++ Difference between method and function?  
++ what are the ways in spark when writing data to storage to reduce or increase number of part files?  
++ Difference between repartition and coalesce in Spark.  
++ What is shuffle in spark?  
++ can data be stored without indexes?  
++ Object versioning in AWS S3?  
++ Access contol policies in AWS S3 when creating a bucket?  
++ Indexing in mongodb?  
++ Given a small table with field names, write a sql query or spark code to get the required aggregation? refer Window functionality and ranking.  
++ Differences between client mode and cluster mode (Spark execution) (https://stackoverflow.com/questions/37027732/apache-spark-differences-between-client-and-cluster-deploy-modes).  
++ Machine learning - classification model - questions on model selection, model evaluation?  
++ deploy a flask app in azure - what is the approach?  
++ Questions on azure fundamentals?  
++ what are the configurations for spark app when spark-submit is done?