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03: Q16 – Q26 Hadoop MapReduce interview questions & answers

This extends 02: Hadoop overview & architecture interview Q&As. Q16. What is MapReduce (i.e MR)? A16. MapReduce is a parallel programming model used for processing large datasets across 10 to 1000 of servers across the Hadoop cluster. A MapReduce program consists of 3 parts. … Read more ›...

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