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Point out the correct statement.

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Point out the correct statement.

(a) Hadoop is an ideal environment for extracting and transforming small volumes of data

(b) Hadoop stores data in HDFS and supports data compression/decompression

(c) The Giraph framework is less  useful than a MapReduce job to solve graph and machine learning

(d) None of the mentioned

This question was addressed to me in semester exam.

This intriguing question originated from History of Hadoop in portion Basics of Hadoop of Hadoop

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Correct option is (b) Hadoop stores data in HDFS and supports data compression/decompression

To explain I would say: Data compression can be achieved using compression algorithms like bzip2, gzip, LZO, etc. Different algorithms can be used in different scenarios based on their capabilities.

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