Discover proven guidelines to minimize data transfer charges in multi-account AWS environments, including optimizing account organizations and leveraging Availability Zone-specific endpoint services.
Table of Contents
Question
A company’s solutions architect is analyzing costs of a multi-application environment. The environment is deployed across multiple Availability Zones in a single AWS Region. After a recent acquisition, the company manages two organizations in AWS Organizations. The company has created multiple service provider applications as AWS PrivateLink-powered VPC endpoint services in one organization. The company has created multiple service consumer applications in the other organization.
Data transfer charges are much higher than the company expected, and the solutions architect needs to reduce the costs. The solutions architect must recommend guidelines for developers to follow when they deploy services. These guidelines must minimize data transfer charges for the whole environment.
Which guidelines meet these requirements? (Choose two.)
A. Use AWS Resource Access Manager to share the subnets that host the service provider applications with other accounts in the organization.
B. Place the service provider applications and the service consumer applications in AWS accounts in the same organization.
C. Turn off cross-zone load balancing for the Network Load Balancer in all service provider application deployments.
D. Ensure that service consumer compute resources use the Availability Zone-specific endpoint service by using the endpoint’s local DNS name.
E. Create a Savings Plan that provides adequate coverage for the organization’s planned inter-Availability Zone data transfer usage.
Answer
B. Place the service provider applications and the service consumer applications in AWS accounts in the same organization.
D. Ensure that service consumer compute resources use the Availability Zone-specific endpoint service by using the endpoint’s local DNS name.
Explanation
B. Place the service provider applications and the service consumer applications in AWS accounts in the same organization.
By placing both the service provider applications and the service consumer applications in accounts within the same organization, data transfers between these accounts are considered inter-Availability Zone data transfer, which is charged at a lower rate compared to cross-organization or internet data transfer. This guideline helps minimize data transfer charges for the entire environment.
D. Ensure that service consumer compute resources use the Availability Zone-specific endpoint service by using the endpoint’s local DNS name.
When accessing a VPC endpoint service, service consumer compute resources should use the Availability Zone-specific endpoint by leveraging the endpoint’s local DNS name. This ensures that the data transfer occurs within the same Availability Zone, minimizing inter-Availability Zone data transfer charges, which are higher than intra-Availability Zone data transfer charges.
By following these guidelines, the company can effectively reduce data transfer costs in their multi-application environment.
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