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Huawei H19-308_V4.0 Exam Syllabus Topics:

TopicDetails
Topic 1
  • 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 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 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 4
  • Data Storage Basis: Data storage is the foundation of IT infrastructure, enabling efficient storage, management, and retrieval of digital information. Understanding storage fundamentals is essential for selecting solutions that meet business performance, capacity, and reliability requirements.

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2026 Marvelous H19-308_V4.0: HCSA-Presales-Storage V4.0 Prep Guide

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Huawei HCSA-Presales-Storage V4.0 Sample Questions (Q84-Q89):

NEW QUESTION # 84
Which RAID level does not provide data protection?

Answer: D


NEW QUESTION # 85
Source deduplication reduces the amount of data to be transmitted, saves network bandwidth, and transmits non-duplicate data, improving logical backup bandwidth and shortening backup time.

Answer: A

Explanation:
Huawei OceanProtect utilizes source deduplication to optimize the data protection process. In traditional backup scenarios, the entire dataset is sent over the network to the backup target, which can consume significant bandwidth and time. With source deduplication, the storage system or backup agent identifies redundant data blocks at the source-before they are sent over the network.
By comparing new data chunks against a local cache of already-transmitted fingerprints, the system ensures that only unique, non-duplicate data is physically moved across the production-to-backup link. This significantly reduces network bandwidth consumption and effectively increases the logical backup bandwidth, as the system can process larger volumes of data without being limited by physical network throughput. Consequently, the backup window is shortened, allowing organizations to meet tight RPOs even in environments with limited network resources or massive data growth.


NEW QUESTION # 86
OceanStor Dorado 3000 V3 supports both SAN and NAS.

Answer: B


NEW QUESTION # 87
What is the maximum number of I/O cards supported by the OceanStor 2200 V3?

Answer: C


NEW QUESTION # 88
By deploying an object storage gateway based on the existing SAN or NAS storage, the S3 object storage service can be quickly provided. This is the mainstream delivery mode in the future.

Answer: B

Explanation:
While it is technically possible to use a gateway to provide object interfaces over traditional storage, Huawei documentation explicitly states that this is not the mainstream delivery mode for the future of cloud-native data. Traditional SAN or NAS architectures are built on hierarchical file systems or block volumes, which face significant metadata performance bottlenecks and scalability limits when forced to handle billions of objects.
The "mainstream" and recommended approach by Huawei is Native Object Storage, such as that found in the OceanStor Pacific series. Native object storage is built on a flat architecture from the ground up, allowing for massive horizontal scalability, a global namespace, and superior metadata handling through distributed indexing. Using a gateway is considered a legacy transition method or a "bridge" solution, but it lacks the efficiency, performance, and durability required for modern big data, AI, and cloud-native applications that natively use the S3 protocol.


NEW QUESTION # 89
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