2026 H19-308_V4.0 Premium Files Test pdf – Free Dumps Collection [Q15-Q29]

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2026 H19-308_V4.0 Premium Files Test pdf – Free Dumps Collection

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Huawei H19-308_V4.0 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: OceanStor New Hybrid Flash Storage	8%	– Highlights of Huawei OceanStor hybrid flash storage
Topic 2: OceanStor Pacific	10%	– Highlights of Huawei OceanStor Pacific scale-out storage
Topic 3: SAN Storage Basis	17%	– Networking, protocols and main SAN technologies
Topic 4: NAS Storage Basis	12%	– Protocols, file system and main NAS technologies
Topic 5: OceanStor Dorado	15%	– Highlights of Huawei OceanStor Dorado all flash storage
Topic 6: OceanProtect Backup Storage	10%	– Highlights of Huawei OceanProtect backup storage
Topic 7: Object Storage Basis	10%	– Protocols and main object features
Topic 8: Data Storage Basis	8%	– Storage basis: basis of disks and data protection
Topic 9: Backup and Disaster Recovery	10%	– Main conceptions and technologies

Q15. Thin provisioning allocates storage space on demand, improving resource utilization.

TRUE

FALSE

OceanStor Dorado all-flash storage can indeed interconnect with OceanStor hybrid flash storage through asynchronous replication. This capability allows data to be replicated across different storage types, providing flexibility in data protection and disaster recovery while accommodating various performance and capacity requirements.

Q16. In safe city video storage scenarios, if a customer needs to deploy 10,000 cameras, which of the following Huawei NAS products is recommended?

OceanStor Dorado NAS

OceanStor hybrid flash storage NAS

OceanStor Pacific

FusionCube

OceanStor Pacific is designed for large-scale, high-capacity storage scenarios, such as safe city video storage, where vast amounts of unstructured video data are generated. It provides high scalability, performance, and cost-effectiveness, making it suitable for deployments involving thousands of cameras.

Q17. Which of the following statements about the OceanStor V5 SmartCache is true?

Write caches are supported.

Read caches are supported.

Both read and write caches are supported.

Not related to read/write caches

Q18. Modifying an object is similar to modifying a file. You can edit and modify the content segments in an object, and then save the object as the original object.

TRUE

FALSE

Unlike files in traditional file systems, objects in object storage are immutable, meaning they cannot be edited in segments. To modify an object, you must create a new version of the object with the changes, rather than directly modifying a portion of its content. This design ensures data integrity and consistency within object storage.

Q19. Which are the advantages of Dorado V3? (Multiple Choice)

4 million IOPS at 0.5 ms latency 10X storage performance improvement 1 ms gateway-free active-

active solution 99.9999% field-proven availability

3x data reduction guarantee, 50% TCO saving

Simplified management, deployment in 10 minutes

Q20. What feature provided by OceanStor Dorado is used for high-frequency data protection (snapshot in seconds)?

HyperCDP

HyperReplication

HyperLock

HyperVault

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.

Q21. Which of the following features is used to improve the performance of the new-gen OceanStor hybrid flash storage?

SmartAcceleration

Smart Tier

Smart Dedupe

SmartCache

SmartAcceleration is a feature specifically designed to improve the performance of the new- generation OceanStor hybrid flash storage by optimizing data paths and accelerating I/O processing.

Q22. Statement 1: RAID 2.0+ is NOT based on traditional RAID technologies.
Statement 2: RAID 2.0+ has excellent rebuild characteristics.

Statement 1 is false and statement 2 is true.

Statement 1 is true and statement 2 is false.

Statements 1 and 2 are both true.

Both statements 1 and 2 are false.

Q23. SmartMigration supports three data migration approaches: Storage media migration (for example, between SAS and NL-SAS), RAID level migration (between different RAID levels), and conversion between a thin LUN and a thick LUN.

TRUE

FALSE

Q24. Which of the following is not a capability of Huawei OceanStor Pacific scale-out storage that ensures always-on services?

Cross-site EC multi-active (HyperGeoEC)

Fast failover within 10s upon a node fault

Multi-replica cross-site and multi-active (HyperGeoMetro)

SAN and NAS integrated active-active

SAN and NAS integrated active-active is not a capability specifically associated with Huawei OceanStor Pacific scale-out storage for ensuring always-on services. The OceanStor Pacific series primarily focuses on scale-out, object, and file-based storage. The capabilities for ensuring high availability in the Pacific series include cross-site EC multi-active (HyperGeoEC), fast failover within 10 seconds upon a node fault, and multi-replica cross-site and multi-active (HyperGeoMetro). These features provide resilience and service continuity across distributed environments.

Q25. What protocols does the DAS interface support? (Choose all that apply.)

InfiniBand

iSCSI

Fibre Channel

SAS

Fibre Channel and SAS are protocols commonly supported by DAS (Direct-Attached Storage) interfaces. Fibre Channel provides high-speed connectivity, and SAS (Serial Attached SCSI) is widely used for connecting servers to directly attached storage devices. DAS does not typically support InfiniBand or iSCSI, as these are more associated with SAN or high-performance computing environments.

Q26. Which of the following topologies are supported by Huawei 3DC DR solution? (Choose all that apply.)

Cascading network

Parallel network

DR Star network

Huawei’s 3DC DR solution supports cascading, parallel, and DR Star network topologies, enabling flexible three-data-center disaster recovery designs.

Q27. The new-gen OceanStor hybrid flash storage uses a copy-on-write (COW) architecture.

TRUE

FALSE

The new-generation OceanStor hybrid flash storage uses a redirect-on-write (ROW) architecture, not copy-on-write (COW). ROW is more efficient for handling snapshot operations and reduces write amplification.

Q28. What are the advantages of OceanStor 9000? (Multiple Choice)

Single file system

Symmetric architecture, expand on demand

Distributed RAID use Erasure Code

Intelligent archiving

Q29. What are the performance-optimized technologies of the OceanStor F V5 series? (Multiple Choice)

Optimization of CPU cores

Adaptive cache algorithm

Intelligent I/O scheduling

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