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CCD-333 · Question #30
CCD-333 Question #30: Real Exam Question with Answer & Explanation
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Question
Which of the following describes how a client reads a file from HDFS?
Options
- ATheclient queries the NameNode for the block location(s).TheNameNode returns the block
- BThe client queriesall DataNodes in parallel.The DataNode that contains the requested data
- CThe client contacts the NameNode for the block location(s). The NameNode then queries the
- DThe client contacts the NameNode for the block location(s). The NameNode contacts the
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