In Amazon ElastiCache, the Failure of a Single Cache Node

question 721

Multiple Choice

In Amazon ElastiCache, the failure of a single cache node can have an impact on the availability of your application and the load on your back-end database while ElastiCache provisions a replacement for the failed cache node and it get repopulated. Which of the following is a solution to reduce this potential availability impact?

• A) Spread your memory and compute capacity over fewer number of cache nodes, each with smaller capacity.
• B) Spread your memory and compute capacity over a larger number of cache nodes, each with smaller capacity.
• C) Include fewer number of high capacity nodes.
• D) Include a larger number of cache nodes, each with high capacity.

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