Google Professional Cloud Network Engineer
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You are planning a GCP migration and need to test hybrid cloud functionality before production implementation. Your design includes Compute Engine VM instances that must communicate with on-premises servers via private IP addresses. The on-premises servers have internet connectivity, but no Cloud Interconnect is established yet. You must select the lowest-cost connectivity method to enable communication between the VM instances and on-premises servers, with testing to be completed within 24 hours. Which connectivity option should you choose?
You are planning a GCP migration and need to test hybrid cloud functionality before production implementation. Your design includes Compute Engine VM instances that must communicate with on-premises servers via private IP addresses. The on-premises servers have internet connectivity, but no Cloud Interconnect is established yet. You must select the lowest-cost connectivity method to enable communication between the VM instances and on-premises servers, with testing to be completed within 24 hours. Which connectivity option should you choose?
Explanation:
Cloud VPN is the most suitable option for the scenario described because it offers a cost-effective and quick solution for establishing secure, private IP connectivity between Google Cloud Platform (GCP) and on-premises servers over the public internet. Given that the on-premises servers already have internet connectivity, Cloud VPN can be set up rapidly, often within hours, without the need for physical infrastructure changes. This contrasts with options like Dedicated Interconnect or Partner VLAN attachments, which require more time for provisioning and are more costly. Cloud VPN meets the requirement for a low-cost method that can be implemented within 24 hours, making it the optimal choice for testing hybrid cloud designs before full-scale production implementation.