Professional Cloud ArchitectManage and provision solution infrastructureMedium
A large enterprise with a complex on-premises network is migrating several mission-critical applications to Google Cloud. These applications require dedicated, low-latency, and high-bandwidth connectivity to the on-premises data center. They also need to maintain private IP communication between the on-premises network and Google Cloud. Which network connectivity solution should they choose?
- ADedicated Interconnect
- BShared VPC
- CCloud VPN
- DDirect Peering
Show answer & explanationAnswer & explanation
Correct answer: A. Dedicated Interconnect
Dedicated Interconnect provides a direct, private physical connection between an on-premises data center and Google Cloud, offering dedicated bandwidth, lower latency, and higher reliability than VPN, which is crucial for mission-critical applications requiring private IP communication.
Why the other options are wrong
- B. Shared VPC allows multiple projects to share a common VPC network, but it is a network architecture pattern within Google Cloud, not an on-premises connectivity solution.
- C. Cloud VPN offers secure connectivity over the public internet, but it does not guarantee low latency or dedicated bandwidth.
- D. Direct Peering connects directly to Google's global network for accessing Google services, but it is not designed for private IP connectivity between an on-premises data center and a customer's VPC network.
Dedicated Interconnect
A Google Cloud service that provides direct physical connections between an on-premises network and Google's network, bypassing the public internet.
- Offers dedicated, high-bandwidth, low-latency connectivity.
- Provides private IP communication.
- Requires physical presence at a colocation facility.
Memory trick: Dedicated Interconnect for direct, private lines.