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Huawei H19-308_V4.0 Exam Syllabus Topics:

TopicDetails
Topic 1
  • 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 2
  • 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.
Topic 3
  • 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 4
  • 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 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.

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Huawei HCSA-Presales-Storage V4.0 Sample Questions (Q42-Q47):

NEW QUESTION # 42
Which of the following is not a product model category of the OceanStor Pacific series?

Answer: C

Explanation:
The OceanStor Pacific series is Huawei's distributed scale-out storage product line, and its models are grouped by workload positioning, such as performance, balanced, and archive scenarios. Performance models are designed for high-throughput and high-IOPS workloads. Balanced models are used for mixed capacity and performance requirements. Archive models are optimized for cost-effective large- capacity retention of unstructured data. The hybrid storage models listed as 5310, 5320, 5510, and 5610 belong to Huawei OceanStor hybrid flash storage, not the OceanStor Pacific distributed storage series.
Those models are controller-based hybrid flash arrays used for enterprise SAN and NAS services, while OceanStor Pacific uses a scale-out distributed architecture. Therefore, the non-Pacific product model category is the hybrid storage model group.


NEW QUESTION # 43
Which of the following scenarios does NAS Write Once Read Many (WORM) apply to? (Choose all that apply.)

Answer: A,C,D

Explanation:
NAS WORM is designed for scenarios that require data to be written once and protected from modification or deletion for a defined retention period. This makes it ideal for data archiving, e- contract preservation, and online exam records, all of which require immutable, audit-compliant storage. Databases are not suitable because they require frequent updates and deletions, which WORM does not allow.


NEW QUESTION # 44
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 # 45
Which of the following technologies are used in the OceanProtect ransomware protection solution to prevent data tampering and deletion? (Choose all that apply.)

Answer: B,C,D

Explanation:
The OceanProtect ransomware protection solution uses WORM (Write Once Read Many), secure snapshot, and Air Gap technologies to prevent data tampering and deletion, ensuring the integrity and safety of backup data. Detection and analysis focus on identifying threats, not preventing tampering or deletion.


NEW QUESTION # 46
Which of the following are key selling points (KSPs) of Huawei OceanStor Pacific scale-out storage? (Choose all that apply.)

Answer: A,B,D

Explanation:
Huawei OceanStor Pacific scale-out storage is designed to be always cost-effective, always-on (ensuring continuous service availability), and always efficient (delivering high performance and scalability). The claim of tolerating the failure of seven out of eight nodes is not a standard key selling point.


NEW QUESTION # 47
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