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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
Available Languages:English
Exam Format:True/False, Single-choice, Multiple-choice
Passing Score:600/1000
Real Exam Qty:60
Exam Price:100 USD
Exam Duration:90 minutes
Related Certifications:HCSA-Presales-Storage
Certificate Validity Period:N/A
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
  • NAS Storage Basis: Network-Attached Storage delivers file-level storage over standard networks, accessible to multiple users simultaneously. NAS systems offer cost-effective solutions for file sharing, collaboration, and centralized data management.
Topic 3
  • 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 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.
Topic 5
  • 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 6
  • 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.

Huawei HCSA-Presales-Storage V4.0 Sample Questions (Q46-Q51):

NEW QUESTION # 46
Which statement about storage software is incorrect?

Answer: D


NEW QUESTION # 47
2200 V3 supports HyperCopy and HyperSnap, which are both included in the basic software suite.

Answer: A


NEW QUESTION # 48
OceanStor Pacific is mainly oriented to structured data storage scenarios.

Answer: A

Explanation:
OceanStor Pacific is primarily designed for unstructured data storage scenarios, such as big data, video storage, backup, and archiving. It is optimized for handling large volumes of unstructured data efficiently rather than structured data, which is more commonly managed by databases and other structured storage solutions.


NEW QUESTION # 49
Which statements about storage arrays are correct?

Answer: A,B,C,D


NEW QUESTION # 50
Which statements are correct about NVMe over Fabrics (NVMe-oF) (RoCE v2)? (Select all that apply)

Answer: A,D

Explanation:
NVMe over Fabrics (NVMe-oF) using the RoCE v2 (RDMA over Converged Ethernet) protocol is a high- speed communication technology supported by Huawei OceanStor Dorado systems. Option B is correct because RoCE v2 utilizes RDMA, which allows data to be transferred directly from the memory of one computer to another without involving the CPU of either system. This significantly reduces latency and CPU overhead compared to traditional iSCSI.
Option C is correct because RoCE v2 requires a " Lossless Ethernet " environment to function correctly.
Traditional Ethernet (Option A) is a " best-effort " delivery system that allows for packet drops during congestion; however, RDMA protocols are highly sensitive to packet loss. To support RoCE v2, the network must implement Data Center Bridging (DCB) features like Priority Flow Control (PFC) and Enhanced Transmission Selection (ETS) to ensure a zero-packet-loss environment. Regarding cost (Option D), RoCE v2 often leverages existing Ethernet infrastructure, making it generally more cost-effective than deploying a dedicated Fibre Channel (FC) fabric, which requires specialized HBAs and FC switches.


NEW QUESTION # 51
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