When OpenStack adopts 2+1 deployment, what services must be deployed on the third node?

When the data in FusionCompute is sent from vm and passes through the port group of the virtual switch, it will be processed according to the settings. What specific processing are included? (Multiple choice)

Which of the following is a concept introduced by Huawei during the FusionSphere installation process, combining components of the same nature or similar functions, Put together Department?

When the Hua Desktop Cloud system is quickly released, which of the following descriptions are correct regarding the disk configuration mode of the virtual machine system disk? (Multiple choice)

The complete replication virtual machine issuance process, which is correct?
a, check whether the virtual machine IP is reachable
b, create a virtual machine
c, add users to the desktop group
d, the virtual machine joins the domain