Two questions - one on SQL and another on Python
Senior Data Engineer Interview Questions
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Spark optimizations,Sql order of execution?
Consider a StudentGrades dataframe with columns – StudentID, CourseID, Grade. Write a spark operation to find students who have scored an ‘A’ in more than three courses.
A SQL query
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1. Describe the process you use in building massive data pipelines? 2. Write some code in the language of your choosing involving basic data structures and algorithms from undergrad CS.
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What are the differences between Kafka and Storm
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