AWS Certified Developer Associate DVA-C02 Practice Question
An application you are developing requires frequent, low-latency lookups of user preferences, which are saved in Amazon DynamoDB. To improve the performance, which technique would be BEST to implement?
Use a larger EC2 instance type to host the application for better performance.
Utilize Amazon DynamoDB Accelerator (DAX) to provide in-memory caching for DynamoDB data.
Increase the read capacity units (RCUs) of the DynamoDB table to handle higher read traffic.
Implement a custom in-memory object caching within the application to store user preferences.