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GCP Professional Cloud Security Engineer Practice Question

Within a single Google Cloud organization you have configured project-net-host as a Shared VPC host. It exports a VPC that contains two subnets in the same region. Compute Engine instances from service project alpha use subnet-a, while instances from service project beta use subnet-b. The security team requires that the two groups of VMs communicate only over their internal IP addresses, and none of the VMs should have external IPs. What is the most straightforward networking configuration to satisfy this requirement?

  • Rely on the existing Shared VPC; create host-level firewall rules that permit the required internal traffic and launch the VMs without external IP addresses.

  • Create reciprocal Private Service Connect endpoints so each subnet can reach the other without using public IP addresses.

  • Establish VPC Network Peering between the two service projects and keep the default firewall configuration.

  • Set up redundant Cloud VPN tunnels with Cloud Routers between the service projects to carry internal traffic securely.

GCP Professional Cloud Security Engineer
Securing communications and establishing boundary protection
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