Google Cloud Professional Cloud Network Engineer — Question 76

Your software team is developing an on-premises web application that requires direct connectivity to Compute Engine Instances in GCP using the RFC 1918 address space. You want to choose a connectivity solution from your on-premises environment to GCP, given these specifications:
✑ Your ISP is a Google Partner Interconnect provider.
✑ Your on-premises VPN device's internet uplink and downlink speeds are 10 Gbps.
✑ A test VPN connection between your on-premises gateway and GCP is performing at a maximum speed of 500 Mbps due to packet losses.
✑ Most of the data transfer will be from GCP to the on-premises environment.
✑ The application can burst up to 1.5 Gbps during peak transfers over the Interconnect.
✑ Cost and the complexity of the solution should be minimal.
How should you provision the connectivity solution?

Answer options

• A. Provision a Partner Interconnect through your ISP.
• B. Provision a Dedicated Interconnect instead of a VPN.
• C. Create multiple VPN tunnels to account for the packet losses, and increase bandwidth using ECMP.
• D. Use network compression over your VPN to increase the amount of data you can send over your VPN.

Correct answer: A

Explanation

Choosing option A, provisioning a Partner Interconnect through your ISP, is the best solution as it offers direct, high-speed connectivity that meets the application's needs without the complexity of a Dedicated Interconnect or multiple VPN tunnels. The other options either do not address the need for direct connectivity effectively or could introduce unnecessary complexity and costs.