Enable bidirectional DNS resolution between on-prem and Cloud DNS, including resolving Google Cloud-provisioned .internal zones. What do you configure?
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Correct answer: Configure an inbound server policy and outbound DNS forwarding zones targeting the on-prem DNS resolver. Configure the on-prem resolver to forward Cloud DNS zone queries to Google Cloud DNS..
Why this is the answer
To achieve bidirectional DNS resolution, an inbound server policy is necessary to allow on-premises DNS servers to query Cloud DNS for Google Cloud-provisioned zones (like .internal). Outbound DNS forwarding zones are configured in Cloud DNS to send queries for on-premises domains to the on-premises DNS resolvers. The on-premises resolver must then be configured to forward queries for Cloud DNS zones (e.g., .internal or custom zones) back to the Cloud DNS inbound policy's IP address. The incorrect options fail because: Configuring only an outbound policy doesn't allow on-prem to resolve Cloud DNS zones. Forwarding to 8.8.8.8 won't resolve private Cloud DNS zones. An outbound server policy without an inbound one won't allow on-prem to resolve Cloud DNS internal zones. Cloud DNS peering is not a standard feature for on-premises integration. Forwarding to 8.8.8.8 is incorrect for private zones.
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