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:

• Each organization has enabled full connectivity across all projects using Shared VPC.
• Both organizations exclusively use the 10.0.0.0/8 address space for instances, except for bastion hosts (for instance access) and load balancers (for web traffic).
• There are no overlapping prefixes between the two organizations.
• Both organizations have firewall rules permitting all inbound and outbound traffic within 10.0.0.0/8.
• Neither organization has Interconnects to their on-premises environments.

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.)