An application running on EC2 instances in a private subnet frequently downloads large datasets from Amazon S3. The instances use a NAT Gateway to access S3. The company has noticed high data processing charges on the NAT Gateway.<br/><br/>How can a solutions architect eliminate the NAT Gateway data processing charges for S3 traffic?

Answer options:

Move the EC2 instances to a public subnet.

Create a Gateway VPC Endpoint for Amazon S3.

Replace the NAT Gateway with a NAT Instance.

Use AWS Direct Connect.

How to approach this question

Identify the free VPC feature that routes traffic to S3.

Full Answer

B.Create a Gateway VPC Endpoint for Amazon S3.✓ Correct

Create a Gateway VPC Endpoint for Amazon S3.

Gateway VPC Endpoints provide reliable connectivity to Amazon S3 without requiring an internet gateway or a NAT device. There is no additional charge for using Gateway endpoints, which eliminates the per-GB data processing charges of a NAT Gateway.

Common mistakes

Thinking Interface VPC Endpoints (PrivateLink) are required for S3, which actually cost money per hour and per GB, whereas Gateway Endpoints are free.

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Practice the full AWS SAA-C03 Practice Exam 6

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