Which of the following descriptions about Nova is incorrect?

In Swift, Ring is used to record the mapping relationship between storage objects and physical locations. Currently, only Account has its own independent Ring.

In Huawei Cloud Stack, which of the following descriptions of measurement indicators are correct? (Multiple choice)

In Huawei Cloud Stack, which of the following descriptions of elastic cloud servers and traditional servers are correct? (Multiple choice)

In Huawei Cloud Stack, the composite API is described as the "console server", which means that the composite API is the bridge between the front-end console UI and the back-end OpenStack, and the composite API should be deployed in the Region.