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DOP-C02 · Question #13

An online retail company based in the United States plans to expand its operations to Europe and Asia in the next six months. Its product currently runs on Amazon EC2 instances behind an Application…

The correct answer is C. Use Aurora with read replicas for the product catalog and additional local Aurora instances in. Using Aurora with read replicas for the product catalog allows for a single product catalog across all regions. Aurora read replicas can be set up in different regions to provide low-latency access to the product catalog from each region. Additionally, by deploying additional…

Submitted by lucia.co· Mar 6, 2026Workload-Specific Database Design

Question

An online retail company based in the United States plans to expand its operations to Europe and Asia in the next six months. Its product currently runs on Amazon EC2 instances behind an Application Load Balancer. The instances run in an Amazon EC2 Auto Scaling group across multiple Availability Zones. All data is stored in an Amazon Aurora database instance. When the product is deployed in multiple regions, the company wants a single product catalog across all regions, but for compliance purposes, its customer information and purchases must be kept in each region. How should the company meet these requirements with the LEAST amount of application changes?

Options

  • AUse Amazon Redshift for the product catalog and Amazon DynamoDB tables for the customer
  • BUse Amazon DynamoDB global tables for the product catalog and regional tables for the
  • CUse Aurora with read replicas for the product catalog and additional local Aurora instances in
  • DUse Aurora for the product catalog and Amazon DynamoDB global tables for the customer

How the community answered

(37 responses)
  • A
    30% (11)
  • B
    14% (5)
  • C
    49% (18)
  • D
    8% (3)

Explanation

Using Aurora with read replicas for the product catalog allows for a single product catalog across all regions. Aurora read replicas can be set up in different regions to provide low-latency access to the product catalog from each region. Additionally, by deploying additional local Aurora instances in each region for customer information and purchases, the company can comply with the requirement of keeping customer data and purchases in each region.

Topics

#Multi-region architecture#Aurora#Read replicas#Data consistency

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