AWS Certified Developer - Associate DVA-C02 — Topic 1 Question 178

Question

A company is building an application for stock trading. The application needs sub-millisecond latency for processing trade requests. The company uses Amazon DynamoDB to store all the trading data that is used to process each trading request. A development team performs load testing on the application and finds that the data retrieval time is higher than expected. The development team needs a solution that reduces the data retrieval time with the least possible effort. Which solution meets these requirements?

Accepted Answer

Correct answer: D. The correct answer is D. Option D: Use DynamoDB Accelerator (DAX) to cache the trading data. Amazon DynamoDB is a fully managed, serverless NoSQL database with single-digit millisecond latency and automatic scaling. DynamoDB Accelerator (DAX) adds an in-memory cache for microsecond DynamoDB reads.

AWS Certified Developer - Associate DVA-C02 — Question 178