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PROFESSIONAL-CLOUD-ARCHITECT · Question #213
Your company has a project in Google Cloud with three Virtual Private Clouds (VPCs). There is a Compute Engine instance on each VPC. Network subnets do not overlap and must remain separated. The netwo
The correct answer is B. Add two additional NICs to Instance #1 with the following configuration:. Use multiple network interfaces when an individual instance needs access to more than one VPC network, but you don't want to connect both networks directly. https://cloud.google.com/vpc/docs/multiple-interfaces-concepts
Submitted by helene.fr· Mar 30, 2026Designing and planning a cloud solution architecture
Question
Your company has a project in Google Cloud with three Virtual Private Clouds (VPCs). There is a Compute Engine instance on each VPC. Network subnets do not overlap and must remain separated. The network configuration is shown below. Instance #1 is an exception and must communicate directly with both Instance #2 and Instance #3 via internal IPs. How should you accomplish this?
Exhibit
Options
- ACreate a cloud router to advertise subnet #2 and subnet #3 to subnet #1.
- BAdd two additional NICs to Instance #1 with the following configuration:
- CCreate two VPN tunnels via CloudVPN:
- DPeer all three VPCs:
How the community answered
(58 responses)- A17% (10)
- B48% (28)
- C7% (4)
- D28% (16)
Explanation
Use multiple network interfaces when an individual instance needs access to more than one VPC network, but you don't want to connect both networks directly. https://cloud.google.com/vpc/docs/multiple-interfaces-concepts
Topics
#multiple NICs#multi-VPC networking#Compute Engine#internal IP routing
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