[2026] Get Top-Rated Huawei H19-308_V4.0 Exam Dumps Now

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NEW QUESTION # 82
Which of the following OceanProtect features greatly improves backup performance and reduces backup time?

• A. Remote replication
• B. Media deduplication and compression
• C. Source deduplication
• D. Secure snapshot

Answer: C

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 # 83
It is estimated that in 2025, 80% of the global volume of new data will be unstructured data.

• A. TRUE
• B. FALSE

Answer: A

Explanation:
This statement aligns with the market analysis provided in Huawei's OceanStor Pacific pre-sales documentation regarding the "Yottabyte Era". Huawei highlights that the nature of data is shifting away from structured databases toward massive volumes of unstructured data, such as high-definition video, medical images, IoT sensor logs, and AI training datasets.
By 2025, it is projected that 80% of new data generated will be unstructured. This trend is the primary driver behind the development of the OceanStor Pacific series, which is a scale-out distributed storage system specifically designed to handle the capacity and performance requirements of unstructured data at scale. Traditional centralized arrays (SAN/NAS) are often ill-equipped to handle the sheer volume and file counts associated with this growth, necessitating the move toward distributed architectures that can scale horizontally to hundreds of petabytes.

NEW QUESTION # 84
How much time does it take for Dorado V3 to reconstruct 1TB data?

• A. 2 hours
• B. 1 hour
• C. 4 hours
• D. 0.5 hour

Answer: D

NEW QUESTION # 85
Which of the following statements about RAID 5 are correct? (Choose all that apply.)

• A. RAID 5 tolerates the failure of a maximum of two member disks without losing data.
• B. RAID 5 writes data by stripes.
• C. RAID 5 has fixed parity disks.
• D. RAID 5 uses the XOR algorithm for parity.

Answer: B,D

NEW QUESTION # 86
Which are the customer benefits of SmartThin (Thin Provisioning)? (Multiple Choice)

• A. Reduce initial purchase cost
• B. Reduce total cost of ownership
• C. Improve storage capacity utilization
• D. Reduce the amount of data
• E. Expand capacity on demand

Answer: A,B,C,E

NEW QUESTION # 87
What are the reliability features of OceanProtect backup storage? (Choose all that apply.)

• A. RAID-TP
• B. Deduplication and compression
• C. Active-active controllers
• D. DataTurbo

Answer: A,C

Explanation:
Active-active controllers provide redundancy and high availability by allowing continuous operation even if one controller fails.
RAID-TP (Triple Parity RAID) adds another layer of data protection by enabling the system to tolerate up to three simultaneous disk failures within a RAID group, ensuring data safety.

NEW QUESTION # 88
Which of the following storage series can be interconnected with the new-gen OceanStor hybrid flash storage? (Choose all that apply.)

• A. OceanStor V3
• B. OceanStor V5
• C. OceanStor Dorado

Answer: B,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 # 89
The Dorado V3 supports the HyperMetro solution.

• A. TRUE
• B. FALSE

Answer: A

NEW QUESTION # 90
OceanStor Pacific supports only three types of protocols: file (NFS/CIFS), object (S3), and HDFS?

• A. TRUE
• B. FALSE

Answer: B

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 # 91
By deploying an object storage gateway based on the existing SAN or NAS storage, the S3 object storage service can be quickly provided. This is the mainstream delivery mode in the future.

• A. TRUE
• B. FALSE

Answer: B

Explanation:
While it is technically possible to use a gateway to provide object interfaces over traditional storage, Huawei documentation explicitly states that this is not the mainstream delivery mode for the future of cloud-native data. Traditional SAN or NAS architectures are built on hierarchical file systems or block volumes, which face significant metadata performance bottlenecks and scalability limits when forced to handle billions of objects.
The "mainstream" and recommended approach by Huawei is Native Object Storage, such as that found in the OceanStor Pacific series. Native object storage is built on a flat architecture from the ground up, allowing for massive horizontal scalability, a global namespace, and superior metadata handling through distributed indexing. Using a gateway is considered a legacy transition method or a "bridge" solution, but it lacks the efficiency, performance, and durability required for modern big data, AI, and cloud-native applications that natively use the S3 protocol.

NEW QUESTION # 92
Which of the following basic elements are contained in an object? (Choose all that apply.)

• A. Data
• B. Object identifier (OID)
• C. Customized metadata
• D. System metadata

Answer: A,B,C,D

Explanation:
All these elements are fundamental components of an object in object storage: system metadata (for system-level information), customized metadata (for user-defined attributes), object identifier (OID, for unique identification), and the data itself (the content being stored).

NEW QUESTION # 93
Which of the following descriptions about deduplication and compression supported by the Dorado V3 are correct? (Multiple Choice)

• A. LUN granularity-based deduplication and compression
• B. Inline deduplication and compression
• C. Deduplication and compression can be enabled or disabled separately.
• D. It is enabled when a LUN is created. It cannot be disabled after being enabled.

Answer: A,B,C,D

NEW QUESTION # 94
Which of the following basic elements are contained in an object? (Select all that apply)

• A. Data
• B. Object identifier (OID)
• C. Customized metadata
• D. System metadata

Answer: A,B,C,D

Explanation:
Unlike traditional file storage which uses a hierarchical tree structure, Huawei Object Storage utilizes a flat structure where each "object" is a self-contained unit of data. According to the documentation, an object consists of four fundamental components:
Data (Option D): The actual content of the file (e.g., a photo, video, or document).
System Metadata (Option C): These are fixed attributes managed by the storage system, such as file size, creation date, last modified time, and HTTP content type.
Customized Metadata (Option B): A unique advantage of object storage is the ability to attach user-defined tags or labels to an object (e.g., "Patient_ID: 12345" or "Department: Radiology"). This allows for advanced data indexing and searching without opening the file itself.
Object Identifier (OID) (Option A): This is the unique key or "Address" used to retrieve the object. In a flat namespace, the OID ensures that every piece of data can be located instantly without traversing a complex directory path.

NEW QUESTION # 95
Which of the following activities may lead to cyber security issues?

• A. The laptop was virus-infected and can't be removed completely at the moment, engineer still holds chance to connect to customer
• B. Ask for a third-party company for service support. To locate faults, the third-party service personnel send customer network data ....
• C. Add a private mailbox address to the alarm notification mailing list of the customer system for testing the alarm email function is....
• D. Customer account authorization has expired but continue use to solve problem.

Answer: A,B,C,D

NEW QUESTION # 96
Which of the following domain controller systems is supported by the SMB protocol?

• A. LDAP
• B. Active Directory
• C. NIS

Answer: B

Explanation:
The SMB protocol supports integration with Microsoft Active Directory, which provides authentication, authorization, and directory services for Windows-based network environments.

NEW QUESTION # 97
What is the logical disk created on a SAN storage system called?

• A. Bucket
• B. File system
• C. Container
• D. LUN

Answer: D

Explanation:
A LUN (Logical Unit Number) is the logical disk created on a SAN storage system, representing a block of storage that servers can access and use as if it were a physical disk.

NEW QUESTION # 98
Chip EDA systems mainly process massive small files (capacity < 1 PB) and has high requirements on OPS. Which of the following products is suitable for the EDA scenario?

• A. FusionCube
• B. IVS3800
• C. OceanStor Dorado NAS
• D. OceanStor Pacific

Answer: C

Explanation:
EDA workloads involve intensive processing of massive quantities of small files with very high OPS requirements. OceanStor Dorado NAS, built on all-flash architecture with ultra-low latency and high metadata performance, is optimized for small-file operations and provides the sustained OPS needed for chip design workflows.

NEW QUESTION # 99
Which types of disk storage pools are supported by the new-gen OceanStor hybrid flash storage?
(Choose all that apply.)

• A. SSD+NL-SAS HDD
• B. HDD
• C. SSD

Answer: A,B,C

Explanation:
The new-generation OceanStor hybrid flash storage supports mixed SSD+NL-SAS disk pools, all- SSD pools, and all-HDD pools, enabling flexible performance-to-capacity configurations.

NEW QUESTION # 100
In NAS multi-protocol access, the permission settings for Windows are the same as those for Linux.

• A. TRUE
• B. FALSE

Answer: B

Explanation:
In NAS multi-protocol access, Windows and Linux permission settings differ. Windows typically uses NTFS permissions, while Linux uses POSIX permissions. When both systems access the same NAS files, the storage system must translate permissions between these formats, but the settings themselves are not the same.

NEW QUESTION # 101
Which of the following disks has the lowest latency?

• A. SAS HDD
• B. NVMe SSD
• C. SAS SSD
• D. NL-SAS HDD

Answer: B

Explanation:
NVMe SSDs have the lowest latency because they use the NVMe protocol and a PCIe interface, which offer much faster data access compared to HDDs and even SAS SSDs.

NEW QUESTION # 102
Which of the following are supported by OceanStor Dorado high-end models? (Choose all that apply.)

• A. Symmetric active-active controllers
• B. Tolerance of the failure of one controller enclosure
• C. Smart disk enclosures
• D. Automatic tier between SSD and HDD

Answer: A,B,C

Explanation:
OceanStor Dorado high-end models support smart disk enclosures for accelerated reconstruction and management, symmetric active-active controllers for high availability, and the ability to tolerate the failure of one controller enclosure. Automatic tiering between SSD and HDD is not a feature of the all-flash Dorado series.

NEW QUESTION # 103
When user A modifies a file in the NAS system, which of the following operations can user B perform on the file?

• A. File modification
• B. File deletion
• C. File renaming
• D. File reading

Answer: D

Explanation:
In Huawei OceanStor NAS systems, data consistency and integrity are maintained through a mechanism known as File Locking. When User A opens a file for modification (a write operation), the storage system applies a "Write Lock" or an "Exclusive Lock" to that specific file. This lock prevents other users from performing any actions that would alter the file's metadata or content, as these concurrent changes would lead to data corruption or "lost updates".
Consequently, File deletion (Option A), File modification (Option C), and File renaming (Option D) are all blocked because they require write-level access or changes to the file system's directory structure that conflict with the active lock held by User A. However, File reading (Option B) is generally permitted unless User A has specifically requested an exclusive lock that bars all access. In standard CIFS/SMB and NFS configurations used by Huawei, multiple users can read a file while one user is writing, ensuring that information remains accessible without compromising the integrity of the file being updated.

NEW QUESTION # 104
Which statements about enterprise-level and desktop-level disks are correct?

• A. Desktop-level disks are mainly used on PCs and laptops.
• B. Compared with desktop-level disks, enterprise-level disks deliver lower reliability and longer mean time between failures (MTBF).
• C. The performance differences between enterprise-level and desktop-level disks lie in the rotational speed, cache, and average seek time.
• D. Enterprise-level disks are designed for enterprises. They are mainly used on servers, storage arrays, and graphics workstations.

Answer: A,C,D

NEW QUESTION # 105
Controllers on the new-gen OceanStor hybrid flash storage are interconnected using RDMA.

• A. TRUE
• B. FALSE

Answer: A

Explanation:
In the new-generation OceanStor hybrid flash storage, controllers are interconnected using RDMA (Remote Direct Memory Access), which allows for high-speed, low-latency data transfers between controllers. This enhances overall performance and responsiveness in the storage system.

NEW QUESTION # 106
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