A news portal is looking for a data store to store 120 GB of metadata about its posts and comments.The posts and comments are not frequently looked up or updated.However, occasional lookups are expected to be served with single-digit millisecond latency on average.
What is the MOST cost-effective solution?
Use Amazon DynamoDB with on-demand capacity mode. Purchase reserved capacity.
Use Amazon ElastiCache for Redis for data storage. Turn off cluster mode.
Use Amazon S3 Standard-Infrequent Access (S3 Standard-IA) for data storage and use Amazon Athena to query the data.
Use Amazon DynamoDB with on-demand capacity mode. Switch the table class to DynamoDB Standard-Infrequent Access (DynamoDB Standard-IA).
From my perspective, the answer is:
Use Amazon DynamoDB with on-demand capacity mode. Switch the table class to DynamoDB Standard-Infrequent Access (DynamoDB Standard-IA).