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CCA-410 · Question #26
CCA-410 Question #26: Real Exam Question with Answer & Explanation
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Question
Your Hadoop cluster has 12 slave nodes, a block size set to 64MB, and a replication factor of three. Choose which best describes how the Hadoop Framework distributes block writes into HDFS from a Reducer outputting a 150MB file?
Options
- AThe Reducer will generate twelve blocks and write them to slave nodes nearest the node on which
- BThe Reducer will generate nine blocks and write them randomly to nodes throughout the cluster.
- CThe slave node on which the Reducer runs gets the first copy of every block written. Other block replicas
- DReducers don't write blocks into HDFS
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