Cloudera
CCA-500 · Question #30
CCA-500 Question #30: Real Exam Question with Answer & Explanation
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Question
Your cluster has the following characteristics: - A rack aware topology is configured and on - Replication is set to 3 - Cluster block size is set to 64MB Which describes the file read process when a client application connects into the cluster and requests a 50MB file?
Options
- AThe client queries the NameNode for the locations of the block, and reads all three copies.
- BThe client queries the NameNode for the locations of the block, and reads from the first location in
- CThe client queries the NameNode for the locations of the block, and reads from a random location
- DThe client queries the NameNode which retrieves the block from the nearest DataNode to the
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