How do you count number of elements in a spark Sequence, how can you avoid data being called twice due to lazy,evaluation Aggregate vs reduce by when to use what
Big Data Manager Interview Questions
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Sql queries,
1. Tell me about your self 2. what is AI and ML 3. what is data science and data engineer 4. pyspark question 5.python coding 6. sql questions
Technology related mid difficulty range.
Décrivez nous votre parcours et en quoi il est cohérent avec le poste.
Explain Spark Architecture & its working
what happens if I make class constructor private?
Vous assurez avoir un bon niveau en anglais et pourtant vous n'avez jamais travailler à l'étranger, comment pouvez-vous donc en être sûr ?
What is thr architecture of spark?
Data Skew en Spark? Coût AWS pour les services? Redshift Vacuum?
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