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AWS Certified Solutions Architect study material · question 66 of 500

How is traffic protected on an inter-Region VPC peering connection?

  1. It is unencrypted, so TLS must be added by the application
  2. It is encrypted only when a Transit Gateway is in the path
  3. It is encrypted before leaving an AWS facility and stays on the AWS backbone
  4. It travels the public internet protected by an IPsec tunnel
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Answer: C. It is encrypted before leaving an AWS facility and stays on the AWS backbone

Inter-Region peering traffic is encrypted before it leaves AWS facilities and never crosses the public internet, which reduces exposure to exploits and DDoS.

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

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