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AWS Certified Solutions Architect study material · question 359 of 500

What addresses do resources in an IPv6-only subnet receive for reaching services available only inside the VPC?

  1. No IPv4 addresses at all
  2. IPv4 link-local addresses from 169.254.0.0/16
  3. Private IPv4 addresses from the VPC CIDR
  4. Elastic IP addresses assigned at launch
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Answer: B. IPv4 link-local addresses from 169.254.0.0/16

An IPv6-only subnet has no IPv4 CIDR, but its resources still get link-local IPv4 addresses to reach VPC-only services.

Source: Subnets for your VPC (Amazon Web Services) — Note

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