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SAP-C02 · Question #691

A global company has a mobile app that displays ticket barcodes. Customers use the tickets on the mobile app to attend live events. Event scanners read the ticket barcodes and call a backend API to…

The correct answer is D. Host the database on Amazon DynamoDB global tables. Create an Amazon CloudFront. https://aws.amazon.com/blogs/networking-and-content-delivery/leveraging-external-data-in- https://aws.amazon.com/blogs/networking-and-content-delivery/lambdaedge-design-best-

Submitted by satoshi_tk· Mar 6, 2026Design for New Solutions

Question

A global company has a mobile app that displays ticket barcodes. Customers use the tickets on the mobile app to attend live events. Event scanners read the ticket barcodes and call a backend API to validate the barcode data against data in a database. After the barcode is scanned, the backend logic writes to the database's single table to mark the barcode as used. The company needs to deploy the app on AWS with a DNS name of api.example.com. The company will host the database in three AWS Regions around the world. Which solution will meet these requirements with the LOWEST latency?

Options

  • AHost the database on Amazon Aurora global database clusters. Host the backend on three
  • BHost the database on Amazon Aurora global database clusters. Host the backend on three
  • CHost the database on Amazon DynamoDB global tables. Create an Amazon CloudFront
  • DHost the database on Amazon DynamoDB global tables. Create an Amazon CloudFront

How the community answered

(14 responses)
  • A
    7% (1)
  • B
    7% (1)
  • C
    21% (3)
  • D
    64% (9)

Explanation

https://aws.amazon.com/blogs/networking-and-content-delivery/leveraging-external-data-in- https://aws.amazon.com/blogs/networking-and-content-delivery/lambdaedge-design-best-

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