How many faulty nodes can OceanStor Pacific tolerate at most?
Correct Answer: C
OceanStor Pacific uses 4-1 erasure coding by default, allowing up to 3 faulty nodes while still maintaining data availability.
Question 52
Which of the following basic elements are contained in an object? (Select all that apply)
Correct Answer: A,B,C,D
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.
Question 53
The RPO and RTO of storage products are 30 minutes and 15 minutes, respectively. Which of the following statements are correct? (Choose all that apply.)
Correct Answer: B,D
RPO (Recovery Point Objective) of 30 minutes means that in the event of a failure, there could be up to a 30-minute data gap between the production and DR sites. This indicates the maximum acceptable data loss in terms of time. RTO (Recovery Time Objective) of 15 minutes means it could take up to 15 minutes to fully restore applications to their operational state after an interruption.
Question 54
Which features can improve system performance in SAN storage? (Choose all that apply.)
Correct Answer: A,B
Storage tiering improves performance by automatically moving frequently accessed data to faster storage media. Level-2 cache (SSD cache) accelerates read and write operations by using SSDs as a high- speed cache layer.
Question 55
How many cabinets does Huawei OceanStor distributed storage allow to fail?
