Professional Cloud Architect · Free Practice Question Hard
Question 29
You are designing a multi-region hybrid network for an organization with offices in multiple global locations. Your design must ensure secure connectivity between Google Cloud and on-premises networks, minimize operational overhead, and comply with the following requirements:
Prevent IP address conflicts.
Provide a scalable and manageable network architecture.
What should you do?
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A
Use an auto-mode VPC in Google Cloud, and establish connectivity with Cloud VPN and Static IP routes.
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B
Use a custom VPC in Google Cloud with globally distributed CIDR ranges and connect using Partner Interconnect.
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C
Create a custom VPC in Google Cloud with non-overlapping CIDR ranges and use Dedicated Interconnect for connectivity.
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D
Configure peering between Google Cloud regions and route traffic through the on-premises environment.
Reveal correct answer
Correct answer: C
A.
Auto-mode VPCs automatically create subnets in all regions, which might lead to inefficient use of IP space and potential conflicts. Cloud VPN with static IP routes has limited scalability and cannot handle the throughput needed for a global network.
B.
While this option supports non-overlapping CIDR ranges, Partner Interconnect may not provide the guaranteed bandwidth or low latency required for a global network. Dedicated Interconnect is a more robust option.
C.
A custom VPC with non-overlapping CIDR ranges ensures no IP conflicts between Google Cloud and on-premises networks. Dedicated Interconnect offers high performance, reliability, and scalability, making it ideal for multi-region setups. This approach also reduces operational overhead by centralizing network management.
D.
Routing Google Cloud traffic through on-premises networks adds unnecessary latency and increases complexity. Google Cloud’s Interconnect services are a better choice for direct, high-performance hybrid connectivity.
Discussion
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