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 Engineer Interview Questions
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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
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primary key and unique key joins in SQL spark architecture project explanation
¿Cuantos yogures se consumen en españa?
Parler d'un projet au sein de l'entreprise actuelle.
About current project, spark architecture and core java.
Data Skew en Spark? Coût AWS pour les services? Redshift Vacuum?
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