Which implementation below would work while maintaining maximum uptime?

A Developer is asked to implement a caching layer in front of Amazon RDS. Cached content is expensive to regenerate in case of service failure.

Which implementation below would work while maintaining maximum uptime?
A . Implement Amazon ElastiCache Redis in Cluster Mode
B . Install Redis on an Amazon EC2 instance.
C . Implement Amazon ElastiCache Memcached.
D . Migrate the database to Amazon Redshift.

View Answer

Answer: A

Explanation:

Reference: https://aws.amazon.com/blogs/database/automating-sql-caching-for-amazon-elasticache-and­amazon-rds/