H19-308_V4.0 Authorized Certification, Vce H19-308_V4.0 Test Simulator

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Huawei H19-308_V4.0 Exam Syllabus Topics:

Topic	Details
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	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	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 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.

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Huawei HCSA-Presales-Storage V4.0 Sample Questions (Q90-Q95):

NEW QUESTION # 90
What feature should the storage system have to set up a disaster recovery (DR) center?

A. Storage snapshot
B. Remote replication
C. Data migration
D. Data clone

Answer: B

Explanation:
To build a disaster recovery center, the key storage feature required is remote replication. Remote replication copies production data from the primary storage system to a secondary storage system at another site. This ensures that when the production site fails because of a disaster, the remote site can provide recoverable data and support service restoration. Huawei storage systems use replication technologies such as synchronous and asynchronous remote replication depending on the required RPO, distance, latency, and service continuity target. Snapshots and clones are useful for local point-in- time protection or testing, but they do not by themselves create an off-site disaster recovery copy. Data migration is mainly used to move data between systems during upgrades or transitions. Therefore, remote replication is the correct feature for setting up a DR center.

NEW QUESTION # 91
What technologies can be used to migrate data from the existing storage devices of other vendors on the customer's live network to target Huawei storage devices? (Choose all that apply.)

A. Level-2 cache (SSD cache)
B. Storage tiering
C. Data migration
D. Heterogeneous storage virtualization

Answer: C,D

Explanation:
Data migration and heterogeneous storage virtualization are technologies that enable the transfer of data from existing storage devices of other vendors to Huawei storage devices on a live network, ensuring minimal disruption and seamless integration.

NEW QUESTION # 92
DAS is a centralized shared storage system.

A. TRUE
B. FALSE

Answer: B

Explanation:
DAS (Direct-Attached Storage) is directly attached to a single server and is not a centralized shared storage system; it does not allow multiple servers to share storage resources.

NEW QUESTION # 93
Which of the following will NOT occur after you set the hard, soft, and advisory quotas for a 1 TB directory to 800 GB, 700 GB, and 600 GB, respectively? (Select all that apply)

A. When the used capacity of the directory exceeds 600 GB, data cannot be written.
B. The total capacity of the directory cannot exceed 1 TB.
C. When the used capacity of the directory exceeds 700 GB, data cannot be written.
D. When the capacity of the directory exceeds 800 GB, data cannot be written.

Answer: A,C

Explanation:
Huawei's SmartQuota feature allows administrators to manage storage consumption at the directory, user, or user-group level using three types of thresholds:
Hard Quota (800 GB): This is a strict limit. Once the used capacity reaches this value, the storage system will immediately prevent any further write operations to that directory. Therefore, Option D will occur.
Soft Quota (700 GB): This is a flexible limit combined with a grace period. When the limit is exceeded, the system issues an alarm but continues to allow data writes until the grace period expires or the hard quota is reached. Therefore, Option B will NOT occur.
Advisory Quota (600 GB): This is purely for monitoring and reporting. When reached, the system simply triggers an administrative alarm or notification; it never restricts data writes. Therefore, Option C will NOT occur.
Option A is also correct because the directory is part of a 1 TB file system; it can never exceed the physical size of its parent container. Thus, only B and C are the actions that "will NOT occur."

NEW QUESTION # 94
Which of the following data applications is HDFS applicable to? (Choose all that apply.)

A. Applications requiring large capacity
B. Applications requiring high throughput
C. Applications requiring low-latency random access
D. Applications requiring small file processing

Answer: A,B

Explanation:
HDFS is well suited for applications that require high throughput and large capacity, such as big data analytics and batch processing. It is not ideal for low-latency random access or small file processing due to its architecture and optimization for large sequential data reads and writes.

NEW QUESTION # 95
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