Answer: Order two 10Gbps Dedicated Interconnect connections in a single metropolitan area (metro). Distribute the connections across different edge availability domains. Create a Cloud Router and two 10Gbps VLAN attachments.

The question requires a redundant, low-latency connection with a 99.9% SLA and 10Gbps bandwidth. Option B is the correct choice because it uses two 10Gbps Dedicated Interconnect connections in different edge availability domains (EADs), ensuring redundancy (no single point of failure) and meeting the 99.9% SLA. Dedicated Interconnect provides direct connectivity to Google’s network, minimizing latency. The total bandwidth (20Gbps) exceeds the requirement, but redundancy is achieved with full 10Gbps capacity on each link. Options C and D rely on HA VPN, which uses the public internet, introducing higher latency and variability, making them unsuitable for low-latency requirements. Additionally, terminating tunnels on a single on-premises device (even with multiple IPs) creates a single point of failure. Option A uses a single Partner Interconnect VLAN, which lacks redundancy (requires two independent connections for 99.9% SLA) and may introduce higher latency compared to Dedicated Interconnect. Thus, Option B is the only solution that meets all criteria: redundancy, SLA, bandwidth, and low latency.

Author: LeetQuiz Editorial Team