Nitor Infotech, an Ascendion company Azure DevOps Engineer Interview Questions and Answers

Q1. Introduction, Brief Project, ADF, DataBricks Optimization
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Q2. SQL Question - FIND Duplicates, Windows Function
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Q1. Sql joins Pyspark coding question Write File im delta format Spark concepts questions Python reverse string List comprehension
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Q1. Performance optimization techniques in Pyspark
Ans. 
Performance optimization techniques in Pyspark involve partitioning, caching, and using efficient transformations.
• Partitioning data to distribute workload evenly

• Caching intermediate results to avoid recomputation

• Using efficient transformations like map, filter, and reduce

• Avoiding unnecessary shuffling of data
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Q1. Introduction, Project working, Spark concept Question, Azure Data Factory real time scenarios, Pyspark coding, sql coding and python coding question. Interviewer Panel was really great
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Q1. Basic sql python azure
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Q1. Medium azure sql python
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Q1. Expectated salary, work culture
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Interview was based on spark... initially basics of spark, optimisation followed by coding round like apply filter, read from multi delimiter, joins, de-duplication

Q1. Brief about project and management ethics
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Q2. Introduction, policies and salary discussion
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