Correct Answer: Amazon DynamoDB Accelerator (DAX)
DAX is a managed, highly available, in-memory cache for DynamoDB that delivers up to a 10x performance improvement....
Correct Answer
Amazon DynamoDB Accelerator (DAX)
Why This Answer Is Correct
DAX is a managed, highly available, in-memory cache for DynamoDB that delivers up to a 10x performance improvement.
This question evaluates your knowledge of Amazon DynamoDB — a core concept tested in AWS Certified Solutions Architect – Associate (SAA-C03). Understanding Amazon DynamoDB is essential for designing scalable, secure, and cost-effective cloud architectures. Mastery of this topic will help you answer scenario-based questions confidently on exam day.
Your application generates millions of clickstream events per second. You need a service to ingest and buffer this data in real-time before processing it. Which service fits this need?
An architect is designing a globally distributed mobile application. Users in different regions must be able to read and write to the same DynamoDB table with low latency. Which feature should be used?
What is the primary difference between a Local Secondary Index (LSI) and a Global Secondary Index (GSI) in DynamoDB?
A company wants to automatically delete old items in a DynamoDB table after 30 days to save costs. Which feature allows this without writing custom deletion code?
An architect needs to capture all changes (insert, update, delete) to a DynamoDB table and trigger a Lambda function to update a search index in real-time. What should be enabled?