AWS Cloud Practitioner CLF-C02 Practice Question

Amazon ElastiCache is the optimal solution for this scenario because it provides a high-performance, in-memory caching service designed to decrease database load by retrieving information from fast, managed, in-memory caches, rather than relying solely on slower disk-based databases. ElastiCache supports two open-source in-memory engines: Redis and Memcached. In contrast, Amazon RDS and Amazon DynamoDB are durable database services that store data on disk instead of memory and would not directly address the requirement for a caching layer to improve read performance during high traffic periods. Amazon S3 is an object storage service, which is not suitable for use as an in-memory caching layer.