Google Cloud Professional Cloud Network Engineer — Question 131

You are planning a large application deployment in Google Cloud that includes on-premises connectivity. The application requires direct connectivity between workloads in all regions and on-premises locations without address translation, but all RFC 1918 ranges are already in use in the on-premises locations. What should you do?

Answer options

• A. Use multiple VPC networks with a transit network using VPC Network Peering.
• B. Use overlapping RFC 1918 ranges with multiple isolated VPC networks.
• C. Use overlapping RFC 1918 ranges with multiple isolated VPC networks and Cloud NAT.
• D. Use non-RFC 1918 ranges with a single global VPC.

Correct answer: D

Explanation

The correct answer is D, as using non-RFC 1918 ranges allows for unique addressing without conflicts, facilitating direct connectivity without address translation. The other options involve overlapping RFC 1918 ranges which cannot be used effectively in this scenario due to existing conflicts, leading to potential routing issues.