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CS Professional · Artificial Intelligence, Data Analytics and Cyber Security - Laws and Practice · Internet and Other Technologies

A hospital chain in Chennai uses a Hadoop-style framework to analyse patient records. Which statement correctly describes the core idea of distributed processing in such a framework?

Data is split across many nodes in a cluster, processed in parallel, and the partial results are combined. This scales to large volumes and handles unstructured data, unlike single-server sequential processing or purely relational storage.

  1. AAll data is moved to one powerful server and processed sequentially
  2. BData is split across many nodes and processed in parallel, with results combined afterwardsCorrect
  3. CData is encrypted once and never processed again
  4. DOnly structured data in relational tables can be stored and processed

Explanation

Hadoop-style frameworks store data across a cluster and apply map and reduce style processing in parallel, then combine the outputs. Centralised sequential processing is the traditional approach that this model replaces, and these frameworks also handle unstructured data.

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