Huawei Certification Exams Pack
Everything from Basic, plus:
- Exam Name: HCSA-Presales-Storage V4.0
- 60 Questions Answers with Explanation Detail
- Total Questions: 60 Q&A's
- Single Choice Questions: 31 Q&A's
- Multiple Choice Questions: 29 Q&A's
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Huawei H19-308_V4.0 - HCSA-Presales-Storage V4.0
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Total Questions: 60
Free Practice Questions: 18
Files in the WORM (Write Once, Read Many) state can be read but cannot be modified.
Answer
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A
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Explanation
Huawei’s HyperLock feature provides WORM (Write Once, Read Many) functionality for NAS file systems. When a file is placed in the WORM state, the storage system strictly enforces a policy where the file's data can be accessed and read by authorized users, but any attempt to modify, overwrite, or delete the file is blocked by the storage controller. In the Huawei OceanStor system, a file enters the WORM state after it is "locked." Once locked, the file remains in a read-only state for a defined retention period. During this time, not even an administrator can modify the file's content or reduce its protection duration. This is critical for meeting regulatory compliance (such as SEC Rule 17a-4) and for protecting sensitive data against ransomware, as it ensures that once data is archived, it remains immutable and verifiable. Only after the retention period has expired can the file be deleted, though it can still never be modified. |
Which of the following basic elements are contained in an object? (Select all that apply)
Answer
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A, B, C, D
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Explanation
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. |
Which of the following are supported by OceanStor Dorado high-end models? (Select all that apply)
Answer
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A, B, C
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Explanation
Huawei OceanStor Dorado high-end models (such as the 18000 series) utilize the SmartMatrix 4.0 architecture to provide industry-leading resilience. Option A is correct because these models can tolerate the failure of an entire controller enclosure (containing 4 controllers) without interrupting services, as the other enclosure in the cluster continues to handle all I/O. Option B is correct because Dorado features a Symmetric Active-Active design where any LUN is not owned by a specific controller; instead, any controller in the cluster can directly access any LUN, eliminating the performance bottleneck caused by traditional ALUA (Asymmetric Logical Unit Access) and ensuring load balancing. Option C is correctas Huawei employsSmart Disk Enclosuresequipped with their own CPU and memory. These enclosures can offload tasks like data reconstruction (RAID rebuilds) from the main controllers, significantly speeding up recovery times and reducing the performance impact on host I/O during a disk failure.Option D is incorrectbecause OceanStor Dorado is anAll-Flasharray; it does not support HDDs and therefore does not perform tiering between flash and mechanical media (which is a function of the OceanStor Hybrid Flash series). |
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Huawei H19-308_V4.0 FAQ'S
Find answers to the most common questions about the Huawei H19-308_V4.0 exam, including what it is, how to prepare, and how it can boost your career.
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