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Your company has migrated to Google Cloud and set up distinct VPC networks for Department A and Department B. You must ensure both VPC networks can access the same on-premises location via separate dedicated connections while maintaining complete isolation between them. Additionally, workloads in Google Cloud need to query on-premises DNS servers using conditional forwarding. The solution should minimize operational overhead. What is the recommended approach?
A
Customize the operating system DNS configuration files to target the on-premises DNS servers.
B
Keep the different VPC networks from both departments isolated with different on-premises links, and separate Cloud DNS private zones and Cloud DNS forwarding zones.
C
Peer Department A's and Department B's VPC networks to have all on-premises connectivity via a single VPC network. Use separate Cloud DNS private zones and Cloud DNS forwarding zones.
D
Configure a Cloud DNS Peering zone in Department A's VPC network pointing to Department B's VPC and a Cloud DNS outbound forwarding zone in Department B's VPC network. Use separate on-premises links in each VPC network.