2026 Updated Verified H19-308_V4.0 dumps Q&As - Pass Guarantee or Full Refund
H19-308_V4.0 PDF Questions and Testing Engine With 348 Questions
NEW QUESTION # 155
OceanStor 9000 supports_____editing of media?
- A. 2-layer 4K
- B. 6-layer 4K
- C. 20-layer 4K
- D. 10-layer 4K
Answer: B
NEW QUESTION # 156
Which of the following statements are correct about multi-tenancy of object storage? (Choose all that apply.)
- A. Multi-tenancy enables multiple departments or services to share one storage system.
- B. Each tenant has an independent capacity quota policy and performance QoS policy. The performance and capacity between tenants do not affect each other.
- C. Multiple tenants share the same storage pool, improving resource utilization.
- D. A tenant can view the data of another tenant.
Answer: A,B,C
Explanation:
Multiple tenants share the same storage pool, which increases resource utilization.
Multi-tenancy allows different departments or services to use a single storage system.
Each tenant has independent policies for capacity and performance, ensuring that the resources and performance of one tenant do not impact others.
NEW QUESTION # 157
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 low-latency random access
- D. Applications requiring large capacity
Answer: A,D
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 # 158
Controllers on the new-gen OceanStor hybrid flash storage are interconnected using RDMA.
- A. FALSE
- B. TRUE
Answer: B
Explanation:
This statement is true as it describes a core architectural component of the Huawei SmartMatrix fully-interconnected design. In the new-generation OceanStor hybrid flash systems, multiple controllers within a cluster must communicate at extremely high speeds to synchronize cache data and manage metadata across the entire storage pool.
To achieve the low latency required for these operations, Huawei utilizes RDMA (Remote Direct Memory Access) for controller interconnection. RDMA allows one controller to access the memory of another controller directly, bypassing the operating system's kernel and reducing CPU overhead. This high-speed back-end interconnection (often operating at 100 Gbps or higher) ensures that data can be mirrored between controllers almost instantaneously, which is critical for supporting symmetric active-active services and maintaining 99.9999% availability. By using RDMA, Huawei can deliver "flash-like" performance even in hybrid arrays by ensuring that the architectural bottlenecks of traditional controller communication are eliminated.
NEW QUESTION # 159
Which of the following API can be used to upload objects?
- A. get object
- B. delete object
- C. update object
- D. put object
Answer: D
Explanation:
The put object API is the standard operation used in object storage systems (including Huawei OBS and S3-compatible platforms) to upload data. It allows a client to send a complete object - consisting of the data and its associated metadata - to the storage system in a single request.
This operation creates a new object if it does not exist or overwrites it if it already exists.
NEW QUESTION # 160
What protocols does the DAS interface support? (Choose all that apply.)
- A. Fibre Channel
- B. SAS
- C. iSCSI
- D. InfiniBand
Answer: A,B
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 # 161
Which of the following technologies are used in the OceanProtect ransomware protection solution to prevent data tampering and deletion? (Choose all that apply.)
- A. Secure snapshot
- B. WORM
- C. Detection and analysis
- D. Air Gap
Answer: A,B,D
Explanation:
The OceanProtect ransomware protection solution uses WORM (Write Once Read Many), secure snapshot, and Air Gap technologies to prevent data tampering and deletion, ensuring the integrity and safety of backup data. Detection and analysis focus on identifying threats, not preventing tampering or deletion.
NEW QUESTION # 162
iSCSI is implemented based on TCP/IP and has better scalability than Fibre Channel.
- A. FALSE
- B. TRUE
Answer: B
Explanation:
This statement is true according to Huawei's storage networking fundamentals. iSCSI (Internet Small Computer System Interface) encapsulates SCSI commands into TCP/IP packets for transmission over standard Ethernet networks. Because it leverages the universal TCP/IP stack, iSCSI can operate across existing routers, switches, and long-distance WAN links without requiring the specialized, expensive hardware associated with Fibre Channel (such as FC switches and Host Bus Adapters).
This reliance on standard Ethernet infrastructure provides iSCSI with superior scalability and flexibility. For example, iSCSI allows storage to be accessed over any distance where an IP connection exists, which is inherently simpler than the complex "FCIP" tunneling required to extend FC over long distances. Additionally, as Ethernet speeds continue to evolve rapidly (10GbE to 25GbE, 100GbE, and beyond), iSCSI can easily scale its performance by upgrading standard networking components. While Fibre Channel often offers lower latency and better raw performance in dedicated local environments, the ease of expansion and integration into existing IP networks makes iSCSI the more scalable choice for broad data center environments.
NEW QUESTION # 163
The OceanStor 2200 V3 does not support iSCSI and FC host ports in a single device.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION # 164
Which is the DR management software provided by Huawei?
- A. SystemReporter
- B. eService
- C. DeviceManager
- D. BCManager
Answer: D
Explanation:
BCManager is Huawei's disaster recovery (DR) management software designed for centralized management, monitoring, and automation of DR solutions across different storage systems.
NEW QUESTION # 165
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. Storage tiering
- B. Data migration
- C. Heterogeneous storage virtualization
- D. Level-2 cache (SSD cache)
Answer: B,C
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 # 166
Which of the following RAID levels has the lowest capacity utilization?
- A. RAID0
- B. RAID1
- C. RAID 5
- D. RAID 3
Answer: B
NEW QUESTION # 167
To support the NAS active-active function, the new-gen hybrid flash storage requires a NAS gateway.
- A. TRUE
- B. FALSE
Answer: B
Explanation:
This statement is false because Huawei's new-generation OceanStor hybrid flash storage features a converged (Unified) architecture that supports Native NAS capabilities directly within the storage controllers. In older storage generations or with competitors, an external "NAS Gateway" or "Filer" was often required to provide file services on top of block storage.
Huawei's HyperMetro for NAS is a gateway-free active-active solution. The file systems are managed natively by the storage OS (OceanStor OS), allowing both SAN and NAS services to benefit from the same high-availability features. By eliminating the need for an external gateway, Huawei simplifies the network topology, reduces hardware costs (TCO), and minimizes latency by removing an extra processing hop for file data. This native integration allows for seamless cross-site active-active deployments for file protocols like CIFS/SMB and NFS, just as it does for block protocols.
NEW QUESTION # 168
Which of the following statements about NFS is incorrect?
- A. If both security and small file processing performance matter, NFSv4.1 is recommended.
- B. NFSv4 greatly enhances security and enables small file processing performance comparable to NFSv3.
- C. NFSv3 has relatively high small file processing performance but weak security.
- D. NFSv4.1 greatly improves small file processing performance over NFSv4.
Answer: D
Explanation:
NFSv4.1 mainly enhances features like session trunking and parallelism but does not significantly improve small file processing performance over NFSv4. Its main improvements are in scalability and reliability, not small file performance.
NEW QUESTION # 169
Which of the following deduplication and compression type does OceanProtect adopt?
- A. Variable-length post-process deduplication and compression
- B. Fixed-length inline deduplication and compression
- C. Fixed-length post-process deduplication and compression
- D. Variable-length inline deduplication and compression
Answer: D
Explanation:
OceanProtect adopts a variable-length inline deduplication and compression method. Inline deduplication and compression are performed in real-time as data is ingested, saving storage space immediately. The variable-length method allows for greater efficiency in deduplication by dynamically adjusting to the actual data patterns, maximizing storage savings.
NEW QUESTION # 170
OceanStor F V5 series and V5 series can migrate data from heterogeneous third-party storage devices without interrupting services.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 171
Which of the following functions is NOT supported by the OceanStor F V5?
- A. HyperMetro (NAS)
- B. Tiered storage
- C. Unified storage
- D. Deduplication and compression
Answer: B
NEW QUESTION # 172
Which interfaces are supported by OceanStor V5 Kunpeng?
- A. 100 GE
- B. 25 GE
- C. 32 Gbit/s FC
- D. 40 GE
Answer: A,B,D
NEW QUESTION # 173
The OceanStor 2200 V3 supports HyperCopy and HyperSnap, which are both included in the basic software suite.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 174
What will RAID 6 (7+2) change into after dynamic reconstruction of OceanStor Dorado HyperZoom if one SSD failed in 9 SSD storage pool?
- A. RAID 5 (5+1)
- B. RAID 6 (6+2)
- C. RAID 6 (7+1)
- D. RAID 6 (5+2)
Answer: B
Explanation:
After one SSD fails in a RAID 6 (7+2) configuration within a 9 SSD pool, OceanStor Dorado HyperZoom dynamically reconstructs the RAID group as RAID 6 (6+2), maintaining two parity disks and adjusting the data layout for optimal protection and performance.
NEW QUESTION # 175
In safe city video storage scenarios, if a customer needs to deploy 10,000 cameras, which of the following Huawei NAS products is recommended?
- A. OceanStor hybrid flash storage NAS
- B. FusionCube
- C. OceanStor Pacific
- D. OceanStor Dorado NAS
Answer: C
Explanation:
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.
NEW QUESTION # 176
The OceanStor 2200 V3 does not support scale-out.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 177
Which statements about intelligence of OceanStor Dorado are correct? (Choose all that apply.)
- A. Data can be migrated among primary storage, object storage, clouds, and hybrid flash storage.
- B. Various SAN and NAS functions are provided on a single device.
- C. Convergence is supported for all-flash and hybrid flash storage systems, as well as for high-end, mid-range, entry-level, and cross-generation products.
- D. A unified storage architecture is used for SAN and NAS. Performance of both SAN and NAS is high.
Answer: B,C,D
Explanation:
OceanStor Dorado offers a unified architecture for SAN and NAS with high performance for both, and supports convergence across all-flash and hybrid flash storage, as well as across different product tiers (high-end, mid-range, entry-level, and cross-generation).
Data can be migrated among primary storage, object storage, clouds, and hybrid flash storage option is not accurate because OceanStor Dorado does not directly support migration between primary storage, object storage, clouds, and hybrid flash storage, as this typically requires additional software or infrastructure.
NEW QUESTION # 178
Which of the following are the key differences between storage and servers? (Choose all that apply.)
- A. High availability (HA) architecture
- B. Production quality control
- C. Power failure protection
- D. Price
Answer: A,C
Explanation:
Power failure protection - Storage devices are designed with advanced power failure protection to prevent data loss, which is a core requirement distinct from general servers.
High availability (HA) architecture - Storage systems typically have specialized HA architectures to ensure continuous data access, which differentiates them from standard server designs.
NEW QUESTION # 179
Which sizes of cache can be used in the OceanStor 5500 V5? (Multiple Choice)
- A. 256 GB (dual controllers)
- B. 64 GB (dual controllers)
- C. 128 GB (dual controllers)
Answer: A,C
NEW QUESTION # 180
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