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CCA-410 · Question #30
CCA-410 Question #30: Real Exam Question with Answer & Explanation
The correct answer is D. 50 slave nodes. Total number available space required: 52 (weeks) 1 (disk space per week) 3 (default replication factor) = 156 TB Minimum number of slave nodes required: 156 /4 = 39
Question
You are planning a Hadoop duster, and you expect to be receiving just under 1TB of data per week which will be stored on the cluster, using Hadoop's default replication. You decide that your slave nodes will be configured with 4 x 1TB disks. Calculate how many slave nodes you need to deploy at a minimum to store one year's worth of data.
Options
- A100 slave nodes
- B100 slave nodes
- C10 slave nodes
- D50 slave nodes
Explanation
Total number available space required: 52 (weeks) * 1 (disk space per week) * 3 (default replication factor) = 156 TB Minimum number of slave nodes required: 156 /4 = 39
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