Cloudera
CCA-500 · Question #47
Which two are features of Hadoop's rack topology?
The correct answer is B. Hadoop gives preference to intra-rack data transfer in order to conserve bandwidth C. Rack location is considered in the HDFS block placement policy. See the full explanation below for the reasoning.
Question
Which two are features of Hadoop's rack topology?
Options
- AConfiguration of rack awareness is accomplished using a configuration file.
- BHadoop gives preference to intra-rack data transfer in order to conserve bandwidth
- CRack location is considered in the HDFS block placement policy
- DHDFS is rack aware but MapReduce daemon are not
- EEven for small clusters on a single rack, configuring rack awareness will improve performance
How the community answered
(67 responses)- A6% (4)
- B79% (53)
- D12% (8)
- E3% (2)
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