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Unlike traditional file storage which uses a hierarchical tree structure, Huawei Object Storage utilizes a flat structure where each "object" is a self-contained unit of data. According to the documentation, an object consists of four fundamental components:

Data (Option D):The actual content of the file (e.g., a photo, video, or document).

System Metadata (Option C):These are fixed attributes managed by the storage system, such as file size, creation date, last modified time, and HTTP content type.

Customized Metadata (Option B):A unique advantage of object storage is the ability to attach user-defined tags or labels to an object (e.g., "Patient_ID: 12345" or "Department: Radiology"). This allows for advanced data indexing and searching without opening the file itself.

Object Identifier (OID) (Option A):This is the unique key or "Address" used to retrieve the object. In a flat namespace, the OID ensures that every piece of data can be located instantly without traversing a complex directory path.

This statement is false because it confuses RTO (Recovery Time Objective) with RPO (Recovery Point Objective). In Huawei’s Disaster Recovery (DR) documentation, these two metrics are defined as follows:

RPO (Recovery Point Objective):Refers to the maximum amount of data loss an organization can tolerate, measured in time. It indicates the "point in time" to which data must be recovered (e.g., "we can only lose 1 hour of data").

RTO (Recovery Time Objective):Refers to the duration of time within which a business process must be restored after a disaster. It measures how long the system can be down before the business is significantly impacted (e.g., "the system must be back online within 4 hours").

The question describes the "point in time" (RPO) but labels it as RTO. In a high-availability solution likeHyperMetro, the RTO and RPO are both theoretically zero, meaning no data loss and no downtime.