1. Reduce and reduce by key difference 2. Map Vs Flat Map 3. SQL joints
Big Data Consultant Interview Questions
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Hive External vs Managed tables
What is difference between exists and in in SQL.
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Remove duplicates from an array. Rotate an array.
Explain about apache spark architecture.
Design a system which does ...
What is your skill set about Big Data?
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tell me about data analysis
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