Free AWS Cloud Practitioner CLF-C02 Actual Exam Questions – Edition - Question 1 Discussion
Which AWS service should the company use?
It’s B for sure. DynamoDB is fast but not really in-memory and it’s proprietary, so that rules out A. EBS is just block storage, no in-memory capability, so C is out. Redshift is for data warehousing and doesn’t do in-memory open source stuff either, so D is off the table. ElastiCache supports Redis and Memcached, which are open source and in-memory, so it fits perfectly here.
DynamoDB isn’t in-memory, so B fits best for open source compatibility.
Probably B. ElastiCache is the only one that actually supports open source in-memory stores like Redis or Memcached, unlike DynamoDB or Redshift which don’t focus on in-memory compatibility.
Option A isn’t the best fit because DynamoDB is a NoSQL database but not really in-memory or open source compatible. ElastiCache is designed for caching with Redis/Memcached, so it makes more sense here.
B, seems like ElastiCache fits the in-memory and open source compatibility needs.