Which of the following description about naming space is correct?

Huawei OceanStor 9000 provide a single file system, and name the space management through a unified file system.

Which of the following description about naming space is correct? (Multiple choice)
A . namespace is automatically created when you start Huawei OceanStor 9000. Its name is consistent with the system naming.
B . namespace as the root directory of the entire system can’t be shared and accessed. Only its subdirectories can be shared and accessed.
C . unified namespace provide users with a unified storage resources pool, to realize the centralized management and allocation for storage space.
D . Each file-sharing directories are namespace’ subdirectories.

Answer: ACD