A company runs a highly available image-processing application on Amazon EC2 instances in a single VPC. The EC2 instances run inside several subnets across multiple Availability Zones. The EC2 instances do not communicate with each other. However, the EC2 instances download images from Amazon S3 and upload images to Amazon S3 through a single NAT gateway. The company is concerned about data transfer charges.
What is the MOST cost-effective way for the company to avoid Regional data transfer charges?

Question

A company runs a highly available image-processing application on Amazon EC2 instances in a single VPC. The EC2 instances run inside several subnets across multiple Availability Zones. The EC2 instances do not communicate with each other. However, the EC2 instances download images from Amazon S3 and upload images to Amazon S3 through a single NAT gateway. The company is concerned about data transfer charges. 
 What is the MOST cost-effective way for the company to avoid Regional data transfer charges?

Accepted Answer

Deploy a gateway VPC endpoint for Amazon S3.

Answer

Provision an EC2 Dedicated Host to run the EC2 instances.

Answer

Launch the NAT gateway in each Availability Zone.

Answer

Replace the NAT gateway with a NAT instance.

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A company runs a highly available image-processing application on Amazon EC2 ins...

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