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CCA-500 · Question #21

CCA-500 Question #21: Real Exam Question with Answer & Explanation

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Question

What two processes must you do if you are running a Hadoop cluster with a single NameNode and six DataNodes, and you want to change a configuration parameter so that it affects all six DataNodes.

Options

  • AYou must modify the configuration files on the NameNode only.
  • BYou must modify the configuration files on each of the six SataNodes machines
  • CYou don't need to restart any daemon, as they will pick up changes automatically
  • DYou must restart the NameNode daemon to apply the changes to the cluster
  • EYou must restart all six DatNode daemon to apply the changes to the cluster

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