AWS Certified Solutions Architect - Associate SAA-C03 — Topic 1 Question 694

Question

A company is building a shopping application on AWS. The application offers a catalog that changes once each month and needs to scale with traffic volume. The company wants the lowest possible latency from the application. Data from each user's shopping cart needs to be highly available. User session data must be available even if the user is disconnected and reconnects. What should a solutions architect do to ensure that the shopping cart data is preserved at all times?

Accepted Answer

Correct answer: B. The correct answer is B. Option B: Configure Amazon ElastiCache for Redis to cache catalog data from Amazon DynamoDB and shopping cart data from the user's session. Amazon DynamoDB is a fully managed, serverless NoSQL database with single-digit millisecond latency and automatic scaling. Amazon ElastiCache provides in-memory caching (Redis/Memcached) to reduce latency and offload the database. AWS Config tracks resource configuration changes and evaluates compliance. By spanning multiple Availability Zones / adding redundancy, this option provides the high availability and resilience required.

AWS Certified Solutions Architect - Associate SAA-C03 — Question 694