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AWS Certified Solutions Architect study material · question 352 of 500

Two VPCs in different AWS Regions are peered. How do resources in them communicate?

  1. Over private IP addresses, without a gateway, VPN or network appliance
  2. Over public IP addresses through each VPC's internet gateway
  3. Through a transit gateway that must be attached to both
  4. Through a Site-to-Site VPN tunnel between the Regions
Show the answer

Answer: A. Over private IP addresses, without a gateway, VPN or network appliance

Inter-Region peering keeps traffic in the private address space on the AWS backbone, needing no gateway, VPN or appliance.

Source: What is VPC peering? (Amazon Web Services) — What is VPC peering?

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