Huawei OceanProtect Appliance provides strong data protection capabilities.

Huawei’s official OceanProtect functional architecture describes the Data enablement engine as providing global search and data anonymization functions, which matches option D.

Option A is incorrect because ProtectManager is the management module , while backup, restore, replication, archive, and copy mount belong to the data protection layer/data flow functions , not ProtectManager.

Option B is incorrect because file system management and protocol access are provided by the basic storage service/basic storage layer , not the data protection layer.

Option C is incorrect because OceanProtect Appliance supports protecting application data through its protection ecosystem, but the statement “without backup agents” is not the functional-architecture definition that matches this question. The architecture item explicitly matched in Huawei material is the DataEnable Engine description in option D