[2026] Use Valid New H19-308_V4.0 Test Notes & H19-308_V4.0 Valid Exam Guide
H19-308_V4.0 Actual Questions Answers PDF 100% Cover Real Exam Questions
Huawei H19-308_V4.0 Exam Syllabus Topics:
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NEW QUESTION # 36
Which of the following solutions are supported by the Dorado V3? (Multiple Choice)
- A. NAS sharing
- B. Database acceleration
- C. VDI
- D. SAPTDI
Answer: B,C,D
NEW QUESTION # 37
In an SCSI-3 model, the server is the target, and the SAN storage is the initiator.
- A. FALSE
- B. TRUE
Answer: A
Explanation:
In the SCSI-3 model, the server (host) acts as the initiator, which sends SCSI commands, and the SAN storage acts as the target, which responds to those commands. The statement reverses these roles, so it is incorrect.
NEW QUESTION # 38
Which of the following OceanProtect features greatly improves backup performance and reduces backup time?
- A. Secure snapshot
- B. Media deduplication and compression
- C. Remote replication
- D. Source deduplication
Answer: D
Explanation:
Source deduplication greatly improves backup performance and reduces backup time by eliminating redundant data at the source before it is transmitted to the backup storage. This minimizes the amount of data that needs to be transferred, speeding up the backup process and reducing network and storage load.
NEW QUESTION # 39
In the medical PACS system, X-ray, MRI, CT, and ultrasound tests generate a large number of image files every day. The file size ranges from 100 KB to 1 MB.
Which Huawei NAS product is recommended?
- A. OceanStor V5 NAS
- B. Oceanstor 9000
- C. FAS9000 series
- D. Unity series
Answer: B
NEW QUESTION # 40
If partners violate cyber security requirements stipulated in the agreements, Huawei is entitled to revoke the license and authorization in the agreen terminate the agreements.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 41
Which indicator indicates the time required for system recovery after a disaster occurs?
- A. RIO
- B. RPO
- C. RTO
- D. TCO
Answer: C
NEW QUESTION # 42
Which statements are incorrect about remote replication and HyperMetro features of storage systems? (Select all that apply)
- A. HyperMetro and synchronous remote replication technologies can implement automatic switchover upon a storage system fault.
- B. Both LUNs in a remote replication pair can provide services for servers.
- C. Asynchronous remote replication has no limit on the distance.
- D. Synchronous remote replication and HyperMetro technologies require that the distance does not exceed 300 km.
Answer: A,B
Explanation:
According to Huawei's BCManager and HyperReplication guides, "incorrect" statements must be identified to understand the distinction between disaster recovery (DR) and active-active solutions. Option B is incorrect because while HyperMetro supports automatic transparent failover (zero RTO) using a Quorum Server, standard synchronous remote replication typically requires manual intervention or third-party management software to trigger a switchover when the primary site fails. In synchronous replication, the secondary LUN is usually in a read-only state and cannot take over automatically without administrative action.
Option D is incorrect because it describes an "Active-Active" state. In a standard Remote Replication pair, only the primary LUN is accessible for host I/O (Read/Write), while the secondary LUN is locked to maintain data consistency. Only the HyperMetro feature allows both LUNs in the pair to provide simultaneous read and write services to application servers across different sites. Regarding distance, while asynchronous replication is physically less constrained, synchronous and HyperMetro technologies are strictly limited by latency (typically requiring round-trip time <10ms and distance within 100km to 300km depending on the specific product line) to avoid severe application performance degradation.
NEW QUESTION # 43
Which of the following is not a typical object storage scenario?
- A. Online video
- B. Backup and archiving
- C. Check image
- D. HD editing
Answer: D
Explanation:
HD editing is not a typical object storage scenario because it requires low-latency, high- performance storage for real-time editing, which is better suited to block storage or NAS solutions. Object storage is more commonly used for scenarios like check image storage, online video, and backup and archiving, which involve large amounts of unstructured data that can tolerate slightly higher latency.
NEW QUESTION # 44
Which of the following storage series can be interconnected with the new-gen OceanStor hybrid flash storage? (Choose all that apply.)
- A. OceanStor Dorado
- B. OceanStor V3
- C. OceanStor V5
Answer: A,C
Explanation:
The new-generation OceanStor hybrid flash storage supports interconnection with OceanStor V5 systems and OceanStor Dorado all-flash storage. OceanStor V3 is not supported for interconnection in the new generation.
NEW QUESTION # 45
Which of the following data applications is HDFS applicable to? (Choose all that apply.)
- A. Applications requiring high throughput
- B. Applications requiring small file processing
- C. Applications requiring large capacity
- D. Applications requiring low-latency random access
Answer: A,C
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 # 46
OceanStor F V5 and V5 series support HyperMetro for both SAN and NAS.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 47
In which scenario is the level-2 cache used to improve system performance?
- A. Backup
- B. Online transaction processing (OLTP) database
- C. Video and image storage
Answer: B
Explanation:
Level-2 cache (such as SSD cache) is especially effective for OLTP databases, which require fast random read and write access. The cache accelerates data access and significantly improves system performance in these high-transaction environments.
NEW QUESTION # 48
Which of the following features is used to improve the performance of the new-gen OceanStor hybrid flash storage? (Select all that apply)
- A. SmartAcceleration
- B. SmartCache
- C. SmartDedupe
- D. SmartTier
Answer: B,D
Explanation:
Performance optimization in Huawei Hybrid Flash arrays is primarily handled by the SmartCache and SmartTier features, which leverage the speed of SSDs to compensate for the slower performance of HDDs:
SmartCache (Option C): This feature uses SSDs as a high-speed Level-2 read cache. By caching frequently accessed "hot" data on SSDs, the system can respond to read requests with much lower latency than if it had to fetch data from mechanical SAS or NL-SAS drives.
SmartTier (Option D): This is an intelligent storage tiering feature. It monitors data access frequency and automatically migrates active data blocks to the high-performance SSD tier, while moving inactive "cold" data to lower-cost HDD tiers. This ensures that performance-sensitive workloads always run on the fastest available media.
SmartDedupe (Option A) is a capacity efficiency feature for reducing redundant data. SmartAcceleration (Option B) is not a standard standalone feature name in the OceanStor Hybrid suite, although the system as a whole uses various acceleration algorithms.
NEW QUESTION # 49
The RPO and RTO of storage products are 30 minutes and 15 minutes, respectively. Which of the following statements are correct? (Choose all that apply.)
- A. If the storage system is faulty, there may be a 30-minute data difference between the production site and the DR site.
- B. It may take 30 minutes to restore one or more interrupted applications to the correct running state.
- C. If the storage system is faulty, there may be a 15-minute data difference between the production site and the DR site.
- D. It may take 15 minutes to restore one or more interrupted applications to the correct running state.
Answer: A,D
Explanation:
RPO (Recovery Point Objective) of 30 minutes means that in the event of a failure, there could be up to a 30-minute data gap between the production and DR sites. This indicates the maximum acceptable data loss in terms of time.
RTO (Recovery Time Objective) of 15 minutes means it could take up to 15 minutes to fully restore applications to their operational state after an interruption.
NEW QUESTION # 50
What protocols does the DAS interface support? (Choose all that apply.)
- A. Fibre Channel
- B. InfiniBand
- C. iSCSI
- D. SAS
Answer: A,D
Explanation:
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.
NEW QUESTION # 51
HyperLock is the name of the file system WORM feature in OceanStor V5 and provides legal compliance protection mode.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 52
Which statements about RAID of OceanStor Dorado are correct?
- A. RAID across enclosures is supported, tolerating the failure of one disk enclosure and one disk.
- B. RAID-TP is supported, tolerating simultaneous failure of three disks.
- C. HyperZoom automatically adjusts the number of RAID member disks based on the number of faulty disks to ensure disk redundancy.
- D. Independent hot spare disks are supported.
Answer: A,B,C
Explanation:
OceanStor Dorado uses Huawei RAID 2.0+ and advanced all-flash reliability technologies to improve data protection. Option A is correct because RAID-TP provides triple-parity protection and can tolerate the simultaneous failure of three disks. Option B is also correct because HyperZoom dynamically adjusts RAID member composition after disk failures, helping the system maintain redundancy instead of remaining in a degraded state longer than necessary. Option D is correct because Dorado supports data distribution across disk enclosures, allowing the system to tolerate enclosure-level failures when properly configured. Option C is incorrect because Dorado does not rely on traditional independent hot spare disks. Instead, spare capacity is distributed across the storage pool, enabling faster reconstruction and avoiding the bottlenecks associated with dedicated hot spares.
Therefore, A, B, and D are correct.
NEW QUESTION # 53
What are the advantages of object storage over traditional NAS storage? (Select all that apply)
- A. HTTP/HTTPS is more universal than NFS/CIFS and supports Internet access.
- B. Customized metadata is easy to manage.
- C. The flat structure is easy to expand.
- D. Tree-shaped directories and hierarchical management are easy to understand.
Answer: A,B,C
Explanation:
Huawei documentation highlights several key advantages of object storage for modern data requirements. Option A is correct because object storage primarily uses RESTful APIs (HTTP/HTTPS), which are firewall-friendly and accessible globally over the internet, unlike NFS/CIFS/SMB which are generally restricted to local area networks (LANs).
Option B is correct because object storage allows for extensible metadata. Users can attach custom tags to objects, enabling powerful data searching and automated lifecycle management without needing an external database to track file attributes. Option D is correct because object storage uses a flat namespace rather than the tree-shaped directory structure of NAS. In a flat structure, adding more nodes to the system does not increase the complexity of data retrieval, allowing for nearly infinite horizontal scalability. Option C is incorrect in this context because the tree-shaped directory is actually a limitation of NAS that causes performance degradation at high scales, whereas object storage avoids this hierarchy to improve expansion capabilities.
NEW QUESTION # 54
Which of the following Huawei NAS products is recommended for non-linear editing of media assets?
- A. FusionCube
- B. OceanStor hybrid flash storage NAS
- C. OceanStor Pacific
- D. OceanStor Dorado NAS
Answer: C
Explanation:
For non-linear editing of media assets, OceanStor Pacific is the most suitable Huawei NAS product.
Non-linear editing workloads involve high-bandwidth access to large video files, concurrent access by multiple editors, and scalable storage capacity for growing media libraries. OceanStor Pacific is Huawei's scale-out distributed storage platform designed for massive unstructured data, high throughput, and multi-protocol access. It can scale capacity and performance horizontally by adding nodes, which is important for media production environments handling HD, 4K, or higher-resolution content. OceanStor Dorado NAS is optimized for ultra-low latency all-flash workloads, while OceanStor hybrid flash NAS is more general-purpose. FusionCube is a hyper-converged infrastructure product, not the preferred dedicated NAS platform for media asset editing. Therefore, OceanStor Pacific is recommended.
NEW QUESTION # 55
Which CPU model does OceanStor 5300 V5 use, Intel or ARM?
- A. ARM
- B. Intel
Answer: A
NEW QUESTION # 56
What is the maximum number of disks supported by the OceanStor 2200 V3?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 57
You can migrate data from the Dorado V3 to traditional storage.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 58
Compared with the previous generation, which of the following are the reliability improvements of high-end models of the new-gen OceanStor hybrid flash storage? (Choose all that apply.)
- A. Tolerating failure of three disks.
- B. Supporting active-active SAN.
- C. Tolerating failure of seven out of eight controllers using SmartMatrix 3.0.
- D. Supporting high density snapshots.
Answer: B,C,D
Explanation:
The new-generation high-end OceanStor hybrid flash models improve reliability by enabling active-active SAN deployment, supporting high-density snapshots for enhanced data protection, and using SmartMatrix 3.0 to tolerate failures of up to seven out of eight controllers.
NEW QUESTION # 59
Which of the following are NAS protocols? (Choose all that apply.)
- A. HTTP
- B. NFS
- C. CIFS/SMB
- D. FTP
Answer: B,C
Explanation:
NFS and CIFS/SMB are standard NAS (Network Attached Storage) protocols that enable file sharing over a network. HTTP and FTP are not typically classified as NAS protocols.
NEW QUESTION # 60
What is the maximum redundancy ratio supported by high-ratio EC?
- A. 18+2
- B. 16+2
- C. 20+2
- D. 22+2
Answer: D
NEW QUESTION # 61
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