AWS Certified Developer - Associate DVA-C02 — Topic 1 Question 172

Question

A mobile app stores blog posts in an Amazon DynamoDB table. Millions of posts are added every day, and each post represents a single item in the table. The mobile app requires only recent posts. Any post that is older than 48 hours can be removed. What is the MOST cost-effective way to delete posts that are older than 48 hours?

Accepted Answer

Correct answer: D. The correct answer is D. Option D: For each item, add a new attribute of type Number that has a timestamp that is set to 48 hours after the blog post creation time. Configure the DynamoDB table with a TTL that references the new attribute. Amazon DynamoDB is a fully managed, serverless NoSQL database with single-digit millisecond latency and automatic scaling. AWS Config tracks resource configuration changes and evaluates compliance. This option delivers the requirement at the lowest cost.

AWS Certified Developer - Associate DVA-C02 — Question 172