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Huawei H19-308_V4.0 Exam Overview:

Certification Vendor:Huawei
Exam Name:HCSA-Presales-Storage V4.0
Exam Number:H19-308_V4.0
Passing Score:600/1000
Exam Price:100 USD
Related Certifications:HCSA-Presales-Storage
Exam Format:True/False, Multiple-choice, Single-choice
Certificate Validity Period:N/A
Real Exam Qty:60
Available Languages:English
Exam Duration:90 minutes
Sample Questions:Huawei H19-308_V4.0 Sample Questions
Exam Way:Written examination
Pre Condition:None specified
Official Syllabus URL:https://e.huawei.com/en/talent/cert/#/cert/overview?certCode=HCSA-Presales-Storage

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Huawei H19-308_V4.0 Exam Syllabus Topics:

TopicDetails
Topic 1
  • SAN Storage Basis: Storage Area Networks provide high-speed, block-level storage over dedicated networks for enterprise applications requiring low latency. SAN enables multiple servers to share storage resources while supporting advanced features like snapshots and replication.
Topic 2
  • OceanStor Dorado: OceanStor Dorado is Huawei's all-flash storage solution for mission-critical applications demanding ultra-low latency. This platform leverages NVMe technology and intelligent management to accelerate digital transformation.
Topic 3
  • OceanStor New Hybrid Flash Storage: OceanStor Hybrid Flash combines flash and disk storage to balance performance and cost-effectiveness. This architecture optimizes resources by placing performance-sensitive data on flash and capacity-oriented data on disk.
Topic 4
  • Object Storage Basis: Object storage manages data as discrete units with metadata and unique identifiers for efficient retrieval. This scalable architecture suits unstructured data, cloud applications, and big data analytics requiring massive capacity.
Topic 5
  • OceanStor Pacific: OceanStor Pacific is Huawei's distributed storage for massive-scale data management and cloud-native applications. It provides scalability, resilience, and performance for big data, AI workloads, and large-scale storage.
Topic 6
  • OceanProtect Backup Storage: OceanProtect offers comprehensive data protection with efficient backup, recovery, and retention features. This solution ensures security through encryption and deduplication while reducing storage costs.

Huawei HCSA-Presales-Storage V4.0 Sample Questions (Q21-Q26):

NEW QUESTION # 21
In safe city video storage scenarios, if a customer needs to deploy 10,000 cameras, which of the following Huawei storage products is recommended?

Answer: B

Explanation:
For "Safe City" projects involving massive video surveillance (such as 10,000+ camera streams), Huawei recommends the OceanStor Pacific series (distributed storage). Large-scale video surveillance generates immense volumes of unstructured data that must be written continuously and stored for long periods. A traditional centralized NAS or SAN often faces performance bottlenecks at the controller level when handling thousands of concurrent high-definition video streams.
OceanStor Pacific uses a scale-out architecture that allows performance and capacity to scale linearly. For 10,000 cameras, the system can aggregate the bandwidth of dozens or hundreds of nodes, providing the high throughput required for video ingestion and the massive capacity required for long-term retention. Additionally, OceanStor Pacific supports high-ratio Erasure Coding (EC), which provides better disk utilization (up to 91%) than traditional RAID, significantly reducing the Total Cost of Ownership (TCO) for petabyte-scale surveillance archives.


NEW QUESTION # 22
Which is the function of BBU?

Answer: B


NEW QUESTION # 23
Does OceanStor F V5 support 3.5-inch SSDs?

Answer: A


NEW QUESTION # 24
Files in the WORM (Write Once, Read Many) state can be read but cannot be modified.

Answer: B

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.


NEW QUESTION # 25
Which are advantages of SAN?

Answer: A,B,C,D


NEW QUESTION # 26
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