H19-308_V4.0 latest Huawei certification exam questions and answers published

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Huawei H19-308_V4.0 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Backup and Disaster Recovery: Backup and disaster recovery strategies protect organizations from data loss through redundant copies of critical information. Comprehensive backup solutions ensure business continuity and enable rapid recovery to minimize downtime.
Topic 2
  • 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 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
  • 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 6
  • 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 7
  • 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 8
  • 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.

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Huawei HCSA-Presales-Storage V4.0 Sample Questions (Q18-Q23):

NEW QUESTION # 18
Which backup networking mode does not need additional network equipment?

Answer: B


NEW QUESTION # 19
Chip EDA systems mainly process massive small files (capacity < 1 PB) and has high requirements on OPS. Which of the following products is suitable for the EDA scenario?

Answer: C

Explanation:
EDA workloads involve intensive processing of massive quantities of small files with very high OPS requirements. OceanStor Dorado NAS, built on all-flash architecture with ultra-low latency and high metadata performance, is optimized for small-file operations and provides the sustained OPS needed for chip design workflows.


NEW QUESTION # 20
What is the major difference between OceanStor 6800 V5 and OceanStor 6800 V3?

Answer: C


NEW QUESTION # 21
What are the components of a SAN system? (Choose all that apply.)

Answer: A,C,D

Explanation:
Storage layer: Includes storage devices and arrays that store the data.
Network layer: Consists of switches and interconnects that facilitate data transfer between storage and hosts.
Host layer: Represents the servers or hosts that access the storage.


NEW QUESTION # 22
SCSI applies to SAN storage with HDDs, and NVMe applies to all-flash SAN storage.

Answer: A

Explanation:
This statement reflects the architectural evolution of Huawei OceanStor systems. The Small Computer System Interface (SCSI) protocol was designed decades ago for mechanical drives (HDDs). It uses a single command queue with a depth of 32 commands, which was sufficient for the physical limitations of rotating platters and moving heads.
In contrast, Non-Volatile Memory express (NVMe) was designed specifically for flash media. It replaces the legacy SCSI stack to eliminate bottlenecks. NVMe supports up to 64,000 queues, each with 64,000 commands, allowing for massive parallelism. Huawei OceanStor Dorado (All-Flash) systems utilize End-to-End NVMe (from the SSD to the controller, and from the controller to the host via NVMe-oF) to achieve microsecond-level latency. While modern flash arrays can still use SCSI (via FC or iSCSI) for compatibility, the full performance potential of an all-flash array is only realized through NVMe. Therefore, in modern storage design, SCSI is the legacy standard for HDDs/Hybrid arrays, while NVMe is the optimized standard for All-Flash arrays.


NEW QUESTION # 23
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