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CCA-500 · Question #29
CCA-500 Question #29: Real Exam Question with Answer & Explanation
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Question
You're upgrading a Hadoop cluster from HDFS and MapReduce version 1 (MRv1) to one running HDFS and MapReduce version 2 (MRv2) on YARN. You want to set and enforce version 1 (MRv1) to one running HDFS and MapReduce version 2 (MRv2) on YARN. You want to set and enforce a block size of 128MB for all new files written to the cluster after upgrade. What should you do?
Options
- AYou cannot enforce this, since client code can always override this value
- BSet dfs.block.size to 128M on all the worker nodes, on all client machines, and on the
- CSet dfs.block.size to 128 M on all the worker nodes and client machines, and set the parameter to
- DSet dfs.block.size to 134217728 on all the worker nodes, on all client machines, and on the
- ESet dfs.block.size to 134217728 on all the worker nodes and client machines, and set the
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