GCP Professional Cloud Architect Practice Question

An insurance provider operates its primary data center in a facility that is also present in a Google Cloud colocation site. The security team requires that all traffic to Google Cloud avoid the public internet. Network engineers need at least 20 Gbps of private, SLA-backed bandwidth today and expect to increase to 50 Gbps within a year while keeping the long-term per-Gbps cost as low as possible. Which hybrid-connectivity option best satisfies these requirements?

Provision two 10 Gbps Dedicated Interconnect circuits now and add additional 10 Gbps circuits as demand grows, advertising routes with Cloud Router.
Configure high-availability Cloud VPN tunnels over diverse ISPs and increase the number of tunnels as traffic grows.
Deploy Cross-Cloud Interconnect links to connect the data center directly to Google Cloud and scale bandwidth on demand.
Order a 10 Gbps Partner Interconnect VLAN attachment from a carrier and upgrade to 50 Gbps service tiers when required.

Report Issue

Answer Description

Because the company's data center is already in the same colocation facility as Google, Dedicated Interconnect can be provisioned directly without a third-party provider. Each link is either 10 Gbps or 100 Gbps, so ordering two 10 Gbps circuits today (and adding more later) meets the 20 Gbps minimum and scales cost-effectively to 50 Gbps by adding additional 10 Gbps circuits. Traffic stays on Google's private backbone rather than the public internet, fulfilling the security mandate, and Dedicated Interconnect offers the lowest recurring cost per gigabit among Google's private connectivity options.

High-availability VPN would traverse the public internet and cannot guarantee the required throughput. Partner Interconnect relies on a service provider, introduces additional recurring fees, and delivers higher per-Gbps cost than owning dedicated circuits. Cross-Cloud Interconnect is intended for connecting Google Cloud to another public cloud, not to an on-premises data center, so it does not apply here.

Ask Bash

Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.