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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Definitions:

Job Strain Model

A conceptual framework suggesting that job strain is a result of high job demands coupled with low job control, often leading to adverse health outcomes.

Self-Determination

The process by which individuals control their own life, making choices and decisions based on personal preferences and interests without external influence.

Stringent Demands

Requirements or conditions that are very strict, precise, and difficult to meet, often imposed in a work setting or by regulatory bodies.

Restricted Control

Restricted control refers to limitations placed on the autonomy or freedom of individuals or organizations, often for regulatory or safety purposes.