Can you explain how do ‘map’ and ‘reduce’ work?
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What are the important differences between apache and hadoop?
What is Writable & WritableComparable interface?
What are the steps to submit a Hadoop job?
Name the various types of lists supported by bootstrap.
On what basis data will be stored on a rack?
how would you modify that solution to only count the number of unique words in all the documents?
Explain the features of pseudo mode?
What is difference between regular file system and HDFS?
If a data Node is full how it's identified?
what is difference between int and intwritable?
How would you use Map/Reduce to split a very large graph into smaller pieces and parallelize the computation of edges according to the fast/dynamic change of data?
Define a commodity hardware? Does commodity hardware include ram?
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