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[General] Pass Guaranteed Quiz 2026 High Hit-Rate Huawei Frenquent H19-308_V4.0 Update

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【General】 Pass Guaranteed Quiz 2026 High Hit-Rate Huawei Frenquent H19-308_V4.0 Update

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Huawei H19-308_V4.0 Exam Syllabus Topics:
TopicDetails
Topic 1
  • 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 2
  • 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 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
  • 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
  • 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 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.

Huawei HCSA-Presales-Storage V4.0 Sample Questions (Q186-Q191):NEW QUESTION # 186
Which of the following statements are incorrect about permission management of object storage?
  • A. Access control list (ACLs) can be used to grant and deny permissions.
  • B. An ACL grants an account the permission to access resources.
  • C. Object storage can use an ACL or bucket policy to manage permissions.
  • D. A bucket policy is used to control the permission of a single user or multiple users to access a bucket or objects in the bucket.
Answer: B
Explanation:
This statement is incorrect because an ACL (Access Control List) in object storage typically grants permissions at a more granular level, such as for specific users or groups to access individual objects or buckets. It does not typically grant permissions to an entire account to access all resources. The other statements correctly describe aspects of permission management in object storage.

NEW QUESTION # 187
Controllers on the new-gen OceanStor hybrid flash storage are interconnected using RDMA.
  • A. FALSE
  • B. TRUE
Answer: B
Explanation:
In the new-generation OceanStor hybrid flash storage, controllers are interconnected using RDMA (Remote Direct Memory Access), which allows for high-speed, low-latency data transfers between controllers. This enhances overall performance and responsiveness in the storage system.

NEW QUESTION # 188
Compared with HDDs, SSDs have high I/O performance and low latency.
  • A. FALSE
  • B. TRUE
Answer: B
Explanation:
SSDs (Solid State Drives) provide significantly higher I/O performance and lower latency compared to HDDs (Hard Disk Drives) because they use flash memory rather than spinning disks. This allows for faster data access and processing, making SSDs ideal for performance- intensive applications.

NEW QUESTION # 189
SCSI applies to SAN storage with HDDs, and NVMe applies to all-flash SAN storage.
  • A. FALSE
  • B. TRUE
Answer: B
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 # 190
Which are advantages of SAN storage? (Choose all that apply.)
  • A. High reliability
  • B. High resource utilization
  • C. High scalability
  • D. High performance
Answer: A,B,C,D
Explanation:
High scalability allows easy expansion to accommodate growing data needs.
High resource utilization enables efficient sharing of storage resources across multiple servers.
High reliability is achieved through redundancy and data protection features.
High performance is provided by dedicated, high-speed connections for fast data access.

NEW QUESTION # 191
......
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