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Answer: Set up some variant of DNS forwarding and zone transfers in each organization., Connect VPCs in both organizations using Cloud VPN together with Cloud Router.
To integrate networking and DNS infrastructure quickly with minimal downtime, the best approach involves establishing network connectivity and ensuring DNS resolution between the two organizations without merging their domains prematurely. Using Cloud VPN with Cloud Router (Option C) provides a fast and secure method to connect VPCs across organizations, leveraging their existing non-overlapping IP address spaces and firewall rules. Implementing DNS forwarding and zone transfers (Option B) allows for seamless DNS resolution between the organizations' domains, maintaining their autonomy during the transition period. These steps avoid the delays associated with physical interconnects (Option A) and the impracticality of manually managing DNS records (Option D) or attempting to merge organizations through Shared VPC (Option E), which is not feasible across different organizations.
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Your company has recently acquired Altostrat (an existing GCP customer), and both companies maintain separate GCP organizations with custom DNS solutions. Each organization will keep its current domain and hostnames until a full transition and architectural review is completed in one year.
Assumptions for both GCP environments:
10.0.0.0/8 address space for instances, except for bastion hosts (for instance access) and load balancers (for web traffic).10.0.0.0/8.You need to integrate the networking and DNS infrastructure of both organizations as quickly as possible with minimal downtime.
Which two steps should you take? (Choose two.)
A
Provision Cloud Interconnect to connect both organizations together.
B
Set up some variant of DNS forwarding and zone transfers in each organization.
C
Connect VPCs in both organizations using Cloud VPN together with Cloud Router.
D
Use Cloud DNS to create A records of all VMs and resources across all projects in both organizations.
E
Create a third organization with a new host project, and attach all projects from your company and Altostrat to it using shared VPC.