H19-308_V4.0 Dumps - Grab Out For [NEW-2026] Huawei Exam
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NEW QUESTION # 11
Which of the following technologies is not used by Huawei OceanStor SmartQoS?
- A. I/O priority scheduling
- B. Cache partitioning
- C. I/O flow control
- D. I/O latency control
Answer: B
NEW QUESTION # 12
Which between NVMe (PCle) and NVMe-oF (RoCE v2) features better scalability?
- A. NVMe-oF (RoCE v2)
- B. NVMe (PCle)
Answer: B
NEW QUESTION # 13
Which of the following statements about the HyperMetro feature of the Dorado V3 are correct?
(Multiple Choice)
- A. Smooth expansion from the gateway-free active-active mode to 3DC without gateways
- B. Two quorum servers are supported to improve reliability.
- C. The gateway-free active-active mode is supported, and the performance is higher than 200,000 IOPS with 1 ms latency.
Answer: A,B,C
NEW QUESTION # 14
What are the phases of a data center lifecycle?
- A. Operation
- B. Design
- C. Relocation
- D. Construction
Answer: A,B,D
NEW QUESTION # 15
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 700 GB, data cannot be written.
- B. The total capacity of the directory cannot exceed 1 TB.
- C. When the capacity of the directory exceeds 800 GB, data cannot be written.
- D. When the used capacity of the directory exceeds 600 GB, data cannot be written.
Answer: A,D
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 # 16
Which types of host ports are supported by the 2200 V3? (Multiple Choice)
- A. 10 Gbit/s iSCSI
- B. 16/8Gbit/s FC
- C. 1 Gbit/s iSCSI
- D. SAS
- E. 10 Gbit/s FCoE
Answer: A,B,C,E
NEW QUESTION # 17
NAS does not support file sharing between Windows and Linux systems due to different protocols.
- A. FALSE
- B. TRUE
Answer: A
Explanation:
NAS supports file sharing between Windows and Linux systems by using protocols that are compatible with both operating systems, such as SMB (Server Message Block) for Windows and NFS (Network File System) for Linux. Modern NAS systems often include multi-protocol support, enabling seamless file sharing and access control across different operating systems despite their protocol differences.
NEW QUESTION # 18
Which interfaces are supported by OceanStor V5 Kunpeng?
- A. 25 GE
- B. 40 GE
- C. 32 Gbit/s FC
- D. 100 GE
Answer: A,B,D
NEW QUESTION # 19
Which of the following statements about NFS is incorrect?
- A. NFSv4.1 greatly improves small file processing performance over NFSv4.
- B. NFSv3 has relatively high small file processing performance but weak security.
- C. NFSv4 greatly enhances security and enables small file processing performance comparable to NFSv3.
- D. If both security and small file processing performance matter, NFSv4.1 is recommended.
Answer: A
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 # 20
Which are Huawei business continuity solutions?
- A. Geo-redundant solution
- B. Active-active data center solution
- C. Local high-availability solution
- D. Active-standby disaster recovery solution
Answer: B,C,D
NEW QUESTION # 21
4-in-1 means that 4 protocols are integrated into 1 OceanStor 100D storage system for unified management.
Which 4 protocols are involved?
- A. NDMP
- B. HDFS
- C. Object
- D. Block
- E. File
Answer: B,C,D,E
NEW QUESTION # 22
Which three technologies are used by the distributed file system of the new-gen OceanStor hybrid flash storage to improve NAS performance? (Choose all that apply.)
- A. Intelligent balancing
- B. Intelligent search
- C. Intelligent cache
- D. Intelligent layout
Answer: A,C,D
Explanation:
The distributed file system of the new-generation OceanStor hybrid flash storage uses intelligent balancing, intelligent cache, and intelligent layout technologies to enhance NAS performance by optimizing data distribution, access speed, and resource utilization.
NEW QUESTION # 23
2200 V3 is an entry-level storage product of Huawei. 2200 V3 with 32 GB cache supports both SAN and NAS.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 24
OceanStor Pacific supports only three types of protocols: file (NFS/CIFS), object (S3), and HDFS?
- A. FALSE
- B. TRUE
Answer: A
Explanation:
The statement is False because Huawei OceanStor Pacific is a multi-protocol storage system that supports more than just the three mentioned protocols. While File (NFS/CIFS), Object (S3), and HDFS are the core protocols for mass data access, the system also supports:
DPC (Distributed Parallel Client): A specialized parallel file system interface that supports standard POSIX and MPI-IO, enabling high-performance computing (HPC) clients to connect directly to multiple storage nodes for balanced I/O.
Block Storage: Certain configurations of OceanStor Pacific can provide block storage services, making it a truly unified distributed platform.
S3 Versioning and Advanced Object APIs: It supports native S3 semantics for object versioning and other advanced cloud-native features.
Because it supports high-performance parallel interfaces (POSIX/MPI-IO) via DPC in addition to the standard protocols, it is technically incorrect to say it supports only three types.
NEW QUESTION # 25
DAS is a centralized shared storage system.
- A. FALSE
- B. TRUE
Answer: A
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 # 26
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 # 27
Which of the following Smart features are used in data migration?
- A. SmartPartition
- B. SmartMigration
- C. SmartQuota
- D. SmartVirtualization
Answer: B,D
NEW QUESTION # 28
Which of the following technologies optimize the F V5 series to ensure SSD performance and reliability?
- A. Adaptive cache algorithm
- B. Intelligent IO scheduling
- C. Multi-core CPU optimization
- D. Flash Link TM
Answer: A,B,C,D
NEW QUESTION # 29
Which type of backup copies involves the minimum amount of data?
- A. Full backup
- B. Incremental backup
- C. Differential backup
Answer: B
NEW QUESTION # 30
What are the highlights of the OceanStor V5 in convergence?
- A. Data flows between the OceanStor Dorado, F V5, V5, andV3
- B. HyperMetro for both SAN and NAS scalable to the 3DC version
- C. A combination of SAN and NAS advantages, ensuring industry-leading functions and performance
- D. Non disruptive data migration from third party devices
Answer: A,B,C,D
NEW QUESTION # 31
What is the major difference between OceanStor 6800 V5 and OceanStor 6800 V3?
- A. Number of supported disks
- B. Number of scalable controllers
- C. Back-end full interconnection
Answer: C
NEW QUESTION # 32
Which of the following are features of multi-protocol interworking of Huawei OceanStor Pacific? (Select all that apply)
- A. Zero data copy
- B. Structured and unstructured data interworking
- C. Gateway-free
- D. No semantic or performance compromise
Answer: A,C,D
Explanation:
Huawei's Multi-protocol Lossless Interworking is a standout feature of the OceanStor Pacific series, allowing one copy of data to be shared across different protocols (File, Object, HDFS).
No Semantic or Performance Compromise (Option B): Historically, protocol conversion (e.g., using a gateway) led to performance loss or "semantic loss" where certain file attributes or object tags were dropped. OceanStor Pacific implements native support for multiple protocols at the metadata level, ensuring full semantic compatibility and high-speed access regardless of the protocol used.
Zero Data Copy (Option C): This feature allows one piece of data to be written via one protocol (e.g., ingested via S3) and read via another (e.g., analyzed via HDFS) without moving or copying the data to a separate system. This eliminates "data silos" and greatly improves data processing efficiency.
Gateway-free (Option D): Because the interworking is native to the storage OS, no external protocol gateways are required. This simplifies the management architecture and reduces the hardware footprint.
Option A is incorrect because documentation generally advises against mixing structured (Database) and unstructured data in the same pool for optimal performance, though the system is primarily optimized for unstructured workloads.
NEW QUESTION # 33
Which of the following are features of OceanStor Pacific HPDA solution? (Choose all that apply.)
- A. Lossless multi-protocol interworking
- B. Supporting multiple performance models concurrently
- C. Interconnection with diversified computing power
- D. One storage system meeting requirements of HPC+AI all service flows
Answer: A,B,C,D
Explanation:
The OceanStor Pacific HPDA solution features lossless multi-protocol interworking, interconnection with diversified computing power, the ability to meet both HPC and AI service flow requirements with one storage system, and support for multiple performance models concurrently. These features deliver flexibility, high performance, and broad applicability for complex data and computing environments.
NEW QUESTION # 34
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