HUAWEI CLOUD has five categories of 20+ security services and 200+ security ecological services, which can meet all aspects of security needs of customers on the cloud. Different security products…

HUAWEI CLOUD has five categories of 20+ security services and 200+ security ecological services, which can meet all aspects of security needs of customers on the cloud. Different security products have different isolation effects. Now, the four scenarios are as follows. Regardless of the security protection effect, only the resource isolation is considered. What is the order of products that can satisfy these four scenarios in turn? (1) Isolation between instances in the same VPC (2) Isolation between subnets in the same VPC (3) Isolation between different VPCs (4) Isolation between the Internet and VPC