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PROFESSIONAL-CLOUD-ARCHITECT · Question #211

Your company has just acquired another company, and you have been asked to integrate their existing Google Cloud environment into your company's data center. Upon investigation, you discover that…

The correct answer is A. Create a Cloud VPN connection from the new VPC to the data center, create a Cloud Router, and. https://cloud.google.com/network-connectivity/docs/router/how-to/advertising-removing-routes To secure your VPC network, use firewall rules to block traffic from reaching unadvertised subnets. Don't rely on hidden routes. Users can still reach unadvertised virtual machine (VM)…

Submitted by salim_om· Mar 30, 2026Designing and planning a cloud solution architecture

Question

Your company has just acquired another company, and you have been asked to integrate their existing Google Cloud environment into your company's data center. Upon investigation, you discover that some of the RFC 1918 IP ranges being used in the new company's Virtual Private Cloud (VPC) overlap with your data center IP space. What should you do to enable connectivity and make sure that there are no routing conflicts when connectivity is established?

Options

  • ACreate a Cloud VPN connection from the new VPC to the data center, create a Cloud Router, and
  • BCreate a Cloud VPN connection from the new VPC to the data center, and create a Cloud NAT
  • CCreate a Cloud VPN connection from the new VPC to the data center, create a Cloud Router, and
  • DCreate a Cloud VPN connection from the new VPC to the data center, and apply a firewall rule

How the community answered

(46 responses)
  • A
    63% (29)
  • B
    9% (4)
  • C
    7% (3)
  • D
    22% (10)

Explanation

https://cloud.google.com/network-connectivity/docs/router/how-to/advertising-removing-routes To secure your VPC network, use firewall rules to block traffic from reaching unadvertised subnets. Don't rely on hidden routes. Users can still reach unadvertised virtual machine (VM) instances through static routes.

Topics

#Cloud VPN#RFC 1918 overlap#Cloud Router#IP routing conflicts

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