What are the optional switch types in the FusionCompute system? (Multiple choice)

In the FusionSphere private cloud solution, after the tenant manually triggers the cloud server backup task, which of the following components will call Cinder to create a consistent snapshot on the production storage?

When there are more desktop cloud users, the average network bandwidth required per user is more; when there are fewer desktop cloud users, the average network bandwidth required per user is less.

When using the Rainbow migration tool, if the migration is interrupted due to a network failure, the online file migration supports resuming the upload while the block migration does not.

Which of the following is the correct procedure to delete storage resources in FusionCompute?
1. Delete or migrate virtual machine disks
2. Disassociate the host.
3. Delete storage resources
4. Destroy the data store