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AWS Certified Advanced Networking - Specialty · AWS
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D - The auto defined rules will resolve for internal DNS queries and everything else to the outbound endpoint. https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/resolver-overview-DSN-queries-to-vpc.html#resolver-overview-forward-vpc-to-network-autodefined-rules
D. Add a forwarding rule for . that targets the Route 53 Resolver outbound endpoint. This rule would forward all DNS queries to the Route 53 Resolver, which is incorrect as it would not differentiate between queries for aws.example.internal and other domains.
A - Add a fwd rule for "*" that targets the on-premises server's DNS IP address, add aws.example.internal that targets Route 53 Resolver.