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AWS Certified Solutions Architect study material · question 217 of 500

Why does a VPC peering connection introduce no single point of failure?

  1. It duplicates every packet across two tunnels
  2. It is backed by a virtual private gateway pair
  3. It reroutes through a transit gateway when congested
  4. It uses the VPC's existing infrastructure rather than a gateway or dedicated hardware
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Answer: D. It uses the VPC's existing infrastructure rather than a gateway or dedicated hardware

Peering is neither a gateway nor a VPN and relies on no separate hardware, so there is no single failure point and no bandwidth bottleneck.

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

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