Explain what are the basic parameters of a mapper?
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Explain what is “map” and what is "reducer" in hadoop?
When is it not recommended to use MapReduce paradigm for large scale data processing?
What is partitioner and its usage?
How many Reducers run for a MapReduce job?
What happen if the number of the reducer is 0 in MapReduce?
when do reducers play their role in a mapreduce task?
How can you add the arbitrary key-value pairs in your mapper?
What is shuffling in mapreduce?
How is mapreduce related to cloud computing?
What is a scarce system resource?
Explain InputSplit in Hadoop MapReduce?
What is the default value of map and reduce max attempts?
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