A company has applications running in private subnets that frequently access Amazon DynamoDB. They are currently routing this traffic through a NAT Gateway, resulting in high data transfer costs. How can they eliminate the NAT Gateway data transfer costs for DynamoDB?

Answer options:

Create an Interface VPC Endpoint (AWS PrivateLink) for DynamoDB.

Create a Gateway VPC Endpoint for DynamoDB and update the route tables.

Move the EC2 instances to a public subnet.

Use AWS Direct Connect.

How to approach this question

Identify the free VPC endpoint type for DynamoDB.

Full Answer

B.Create a Gateway VPC Endpoint for DynamoDB and update the route tables.✓ Correct

Create a Gateway VPC Endpoint for DynamoDB and update the route tables.

Gateway VPC Endpoints are available for S3 and DynamoDB. They are completely free and allow resources in private subnets to access these services without going through a NAT Gateway.

Common mistakes

Choosing Interface Endpoint, which incurs an hourly charge and is not the standard for DynamoDB.

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