What are the data components used by Hadoop?
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List the configuration parameters that have to be specified when running a MapReduce job.
how indexing in HDFS is done?
Compare RDBMS with Hadoop MapReduce.
What are the the issues associated with the map and reduce slots based mechanism in mapReduce?
Explain the differences between a combiner and reducer
In Hadoop what is InputSplit?
What are advantages of Spark over MapReduce?
What is the Job interface in MapReduce framework?
What is a scarce system resource?
What do you mean by shuffling and sorting in MapReduce?
What is the sequence of execution of map, reduce, recordreader, split, combiner, partitioner?
What is a "reducer" in Hadoop?
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