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CCA-500 · Question #28
CCA-500 Question #28: Real Exam Question with Answer & Explanation
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Question
On a cluster running MapReduce v2 (MRv2) on YARN, a MapReduce job is given a directory of 10 plain text files as its input directory. Each file is made up of 3 HDFS blocks. How many Mappers will run?
Options
- AWe cannot say; the number of Mappers is determined by the ResourceManager
- BWe cannot say; the number of Mappers is determined by the developer
- C30
- D3
- E10
- FWe cannot say; the number of mappers is determined by the ApplicationMaster
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