As a network administrator at your company planning a migration to Google Cloud, you aim to expedite the migration process while maintaining consistency with your on-premises network architecture, which follows a hub-and-spoke model. The on-premises setup comprises over 50 spokes, each isolated from one another, with all traffic routed through the hub for security purposes. Your goal is to replicate this architecture in Google Cloud, minimizing management overhead and cost, and adhering to default networking quotas and limits. What is the most appropriate solution?