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 whil...

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 whileElastiCache 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?