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Question

Suppose freeonlinetest is running an Amazon Redshift cluster with four nodes running 24/7/365 and expects, potentially, to add one on-demand node for one to two days once during the year. Which architecture would have the lowest possible cost for the cluster requirement?
  • Purchase 4 reserved nodes and rely on on-demand instances for the fifth node, if required
  • Purchase 2 reserved nodes and utilize 3 on-demand nodes only for peak usage times
  • Purchase 4 reserved nodes and bid on spot instances for the extra node usage required
  • Purchase 5 reserved nodes to cover all possible node usage during the year
Answer- A


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