Practice · Apply

Apply what you learned in SAA-style questions.

Choose one scenario, then answer SAA-style questions about its requirements and tradeoffs. After each answer, Arcflow explains why every option fits or fails.

Scenario 06

Serverless API With Lambda And DynamoDB

Question 1 of 10

Choose one answer

A startup needs an HTTPS cart API with unpredictable traffic and very little operational capacity. Requests are short, and each cart is read by customer ID and cart ID. Which architecture best fits?

Run one large EC2 instance with a local JSON file for carts.Use API Gateway routes with short Lambda handlers and a DynamoDB key design that directly addresses each customer's cart.Put every request on Kinesis Data Streams and query the stream for the current cart.Store carts in S3 and list the entire bucket for each request.

Practice uses original Arcflow exam-style questions. It is not an official AWS exam or AWS question bank.