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Huawei H19-308_V4.0 Exam Overview:

Certification Vendor:Huawei
Exam Name:HCSA-Presales-Storage V4.0 Exam (H19-308_V4.0)
Exam Number:H19-308_V4.0
Exam Duration:90 minutes
Exam Format:True/False, Single choice, Multiple choice
Available Languages:English, Chinese
Related Certifications:HCIA
HCSA
HCIP
Sample Questions:Huawei H19-308_V4.0 Sample Questions
Exam Way:Online proctored or authorized test center
Pre Condition:No strict prerequisite required; basic IT and storage knowledge recommended.

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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
  • 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
  • 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
  • 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 6
  • 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 7
  • 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 8
  • 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.

Huawei HCSA-Presales-Storage V4.0 Sample Questions (Q79-Q84):

NEW QUESTION # 79
Each LUN on OceanStor Dorado is owned by a specific controller.

Answer: B

Explanation:
Unlike traditional storage architectures that use an Asymmetric Logical Unit Access (ALUA) model where a LUN is "owned" by a primary controller, Huawei OceanStor Dorado utilizes a Symmetric Active-Active architecture. In this design, LUNs do not have a specific owner. Instead, all controllers in a cluster can simultaneously receive and process I/O requests for the same LUN.
This is made possible by the SmartMatrix full-mesh interconnect, which allows any interface module to communicate with any controller, and any controller to access any disk. Because there is no concept of "LUN ownership," there is no need for time-consuming "LUN handovers" if a controller fails. This symmetry eliminates performance bottlenecks, ensures balanced load distribution across all hardware resources, and provides a smoother experience for host-side multipathing software. This architectural shift is a key differentiator for the Dorado series, enabling it to deliver consistent, high-speed performance even during controller maintenance or failure.


NEW QUESTION # 80
Which of the following new concepts is proposed by Huawei for data backup solutions?

Answer: D

Explanation:
Huawei proposes the new backup concept D2F2T (Disk-to-Flash-to-Tape), which leverages flash storage to accelerate backup and restore processes, providing a faster and more efficient data protection solution compared to traditional D2D2T (Disk-to-Disk-to-Tape) methods.


NEW QUESTION # 81
A customer wants to purchase an object storage system to be used by different departments.
These departments are independent of each other and cannot access each other's data.
Therefore, the data capacity of different departments needs to be limited. Which of the following object storage features will you recommend to the customer? (Choose all that apply.)

Answer: A,C

Explanation:
Multi-tenancy enables different departments to operate independently within the same object storage system, ensuring isolation and security.
Quota allows the administrator to set data capacity limits for each department, managing storage usage effectively.


NEW QUESTION # 82
What are highlights of the Huawei active-active DC solution?

Answer: A,B,C,D


NEW QUESTION # 83
What feature provided by OceanStor Dorado is used for high-frequency data protection (snapshot in seconds)?

Answer: D

Explanation:
HyperCDP (Continuous Data Protection) is a feature specifically designed for high-density, high-frequency data protection in Huawei OceanStor Dorado systems. While standard snapshots (HyperSnap) have limits on the total number of point-in-time copies and the frequency at which they can be taken, HyperCDP allows for the creation of snapshots at intervals as short as several seconds.
HyperCDP achieves this by utilizing a specialized metadata management system that minimizes the impact on system performance during the snapshot creation process. It can support up to 60,000 recovery points per LUN, providing a much finer granularity for data recovery than traditional backup or snapshot technologies. This is particularly useful for protecting against ransomware or logical data corruption, as it allows an administrator to roll back a database or volume to a state just seconds before the incident occurred. HyperReplication (Option B) is for remote DR, HyperLock (Option C) is for WORM/compliance, and HyperVault (Option D) is an integrated backup tool for older hybrid systems.


NEW QUESTION # 84
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