What are the advantages of object storage over traditional NAS storage?

Huawei documentation highlights several key advantages of object storage for modern data requirements. Option A is correct because object storage primarily uses RESTful APIs (HTTP/HTTPS), which are firewall-friendly and accessible globally over the internet, unlike NFS/CIFS/SMB which are generally restricted to local area networks (LANs).

Option B is correct because object storage allows for extensible metadata . Users can attach custom tags to objects, enabling powerful data searching and automated lifecycle management without needing an external database to track file attributes. Option D is correct because object storage uses a flat namespace rather than the tree-shaped directory structure of NAS. In a flat structure, adding more nodes to the system does not increase the complexity of data retrieval, allowing for nearly infinite horizontal scalability. Option C is incorrect in this context because the tree-shaped directory is actually a limitation of NAS that causes performance degradation at high scales, whereas object storage avoids this hierarchy to improve expansion capabilities.