In Huawei Cloud Stack, which of the following steps to create a virtual machine is correct? 1. The ECs interface in the combined API calls the VPC interface in the combined API, and the VPC…

In Huawei Cloud Stack, which of the following steps to create a virtual machine is correct? 1. The ECs interface in the combined API calls the VPC interface in the combined API, and the VPC interface calls Neutron to create network resources such as EIPs and ports. 2. The ECS interface in the combination API calls the EVS interface in the combination API, and the EVS interface calls Cinder to create a volume. 3. ECS UI sends the creation request to the combination API 4. The ECS interface in the combination API calls Nova, and Nova calls Libvirt to create a virtual machine.