A Virtual Private Cloud (VPC) is designed specifically for this purpose. It allows users to create a segregated environment within a public cloud, where they can define and control network configurations, including IP address range, subnets, network gateways, and security settings. This isolation ensures that the resources inside a VPC have the same level of security and networking rules as the on-premises infrastructure, making it the correct choice. Other options, like Direct Connect or VPN, are meant for establishing connectivity rather than managing detailed network policies and isolation.