Apr 03, 2026 Detailed New H19-308_V4.0 Exam Questions for Concept Clearance
H19-308_V4.0 Exam Preparation Material with New H19-308_V4.0 Dumps Questions.
NEW QUESTION # 68
Does OceanStor 9000 support storing videos and pictures in the same node pool?
- A. yes
- B. no
Answer: A
NEW QUESTION # 69
Which is NOT a front-end port of the Dorado V3?
- A. 40 Gbit/s InfiniBand
- B. 56 Gbit/s InfiniBand
- C. 10 Gbit/s iSCSI, 25Gbit/s iSCSL,40 Gbit/s iSCSI, and 100 Gbit/s iSCSI
- D. 8 Gbit/s FC,16 Gbit/s FC, and 32 Gbit/s FC
Answer: A
NEW QUESTION # 70
Which of the following RAID levels has the lowest capacity utilization?
- A. RAID 3
- B. RAID 5
- C. RAID 0
- D. RAID 1
Answer: D
NEW QUESTION # 71
Which of the following components are included in a backup system? (Choose all that apply.)
- A. Backup software
- B. Backup server
- C. Backup media
- D. Backup policy
Answer: A,B,C,D
Explanation:
A complete backup system consists of backup media, a backup server, backup software, and defined backup policies to govern how data is protected and managed.
NEW QUESTION # 72
Which of the following is not a typical HDFS storage scenario?
- A. Operation analysis big data
- B. Offline analysis
- C. Log big data
- D. Database
Answer: D
Explanation:
HDFS is not typically used for database storage due to its design for high-throughput sequential data access rather than transactional workloads.
NEW QUESTION # 73
Which systems are included in the data center infrastructure?
- A. Low-voltage system (communication cables such as network cables)
- B. Air conditioning system
- C. Electrical system (high-voltage system)
- D. Lighting system
- E. Fire extinguishing system
Answer: A,B
NEW QUESTION # 74
What is the full name of WORM?
- A. Write many, read many
- B. Write once, read many
- C. Write many, read once
Answer: B
NEW QUESTION # 75
Which RAID levels does the Dorado V3 support?
- A. RAID 5
- B. RAID 10
- C. RAID TP
- D. RAID 6
Answer: A,B,C,D
NEW QUESTION # 76
2200 V3 is an entry-level storage product targeting small- and medium-sized business (SMB) market. It can be used in a variety of scenarios, such as centralized storage, backup, video surveillance, databases.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 77
Which are SAN types classified by architecture?
- A. Distributed SAN
- B. Centralized SAN
- C. FC SAN
- D. IP SAN
Answer: C,D
NEW QUESTION # 78
A snapshot is a full copy of a LUN in SAN storage.
- A. FALSE
- B. TRUE
Answer: A
Explanation:
In Huawei OceanStor systems, a snapshot is not a full physical copy of the data. Huawei uses a technology called HyperSnap, which typically employs a "Copy-on-Write" (COW) or "Redirect-on-Write" (ROW) mechanism.
When a snapshot is created, the system generates a point-in-time (PIT) logical image of the source LUN. It does not immediately duplicate the data blocks; instead, it records the state of the data at that specific moment. If data in the source LUN is subsequently modified, the original data is preserved (in COW) or new data is written to a new location (in ROW) to maintain the integrity of the snapshot. Because only the metadata and the changed blocks are managed, snapshots are created near-instantaneously and consume very little initial space.
A "full copy" would be referred to as a Clone (HyperClone) or a LUN Copy, both of which require a 1:1 ratio of physical storage space relative to the source and take significant time to complete. Therefore, a snapshot is a virtual, point-in-time image, not a full physical duplicate.
NEW QUESTION # 79
HyperReplication is a remote replication technology that only implements asynchronous replication.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 80
What are the characteristics of DAS? (Choose all that apply.)
- A. Directly connects to servers.
- B. Used for file storage services.
- C. Connects to servers without using network devices.
- D. Used for block storage services.
Answer: A,C,D
Explanation:
Direct-Attached Storage (DAS) is characterized by its direct connection to servers without the use of network devices, making it ideal for block storage services where data is stored in volumes directly accessible by the server. DAS does not typically support file storage services, as this requires a networked storage environment, such as NAS, to manage file-level access.
NEW QUESTION # 81
Which statements about the core customer benefits (selling points) of Huawei OceanStor Dorado are correct?
- A. It has the most reliable architecture in the industry.
- B. It delivers the fastest I/O processing capability in the industry.
- C. It implements automated O&M using Ascend AI chips. FlashEver provides free upgrade to the latest generation in the next decade, and frees users from data migration.
Answer: A,B,C
NEW QUESTION # 82
Which backup networking mode does not need additional network equipment?
- A. Server Free
- B. LAN Free
- C. LAN Base
Answer: C
NEW QUESTION # 83
Which features can improve system performance in SAN storage? (Choose all that apply.)
- A. Thin provisioning
- B. Level-2 cache (SSD cache)
- C. Storage tiering
- D. Data deduplication
Answer: B,C
Explanation:
Storage tiering improves performance by automatically moving frequently accessed data to faster storage media.
Level-2 cache (SSD cache) accelerates read and write operations by using SSDs as a high- speed cache layer.
NEW QUESTION # 84
An HBA is a device that provides input/output (I/O) processing and physical connections on a host.
- A. TRUE
- B. FALSE
Answer: A
Explanation:
A Host Bus Adapter (HBA) is responsible for handling I/O processing and providing the physical connectivity between a host server and a storage network such as Fibre Channel or SAS. It offloads storage-related tasks from the CPU and ensures reliable high-speed data transmission, making the statement correct.
NEW QUESTION # 85
What are the characteristics of the HyperMetro for Both SAN and NAS supported by the OceanStor V5 series? (Multiple Choice)
- A. Active-active solution with RPO=0 and RTO0
- B. Load balancing between active-active sites
- C. Gateway-free, SAN and NAS integration
Answer: A,B,C
NEW QUESTION # 86
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. FALSE
- B. TRUE
Answer: A
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 # 87
2200 V3 supports SAS host ports.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 88
Which of the following is the most-important characteristic of OLTP?
- A. IOPS
- B. Band width
- C. Capacity
Answer: A
NEW QUESTION # 89
Which of the following domain controller systems is supported by the SMB protocol?
- A. Active Directory
- B. LDAP
- C. NIS
Answer: A
Explanation:
The SMB protocol supports integration with Microsoft Active Directory, which provides authentication, authorization, and directory services for Windows-based network environments.
NEW QUESTION # 90
How many controllers can be used when only one LUN is configured on Dorado V6?
- A. 0
- B. 1
- C. 2
- D. All online controllers
Answer: C
NEW QUESTION # 91
Which of the following descriptions about the models supported by the Dorado V3 are correct?
(Multiple Choice)
- A. The Dorado6000 V3 SAS supports a dual-controller architecture with 256 GB cache or 512 GB cache.
- B. The Dorado5000 V3 SAS supports a dual-controller architecture with 256 GB cache.
- C. The Dorado5000 V3 NVMe supports a dual-controller architecture with 512 GB cache.
- D. The Dorado6000 V3 SAS supports a dual-controller architecture with 512 GB cache or 1 TB cache.
Answer: B,C,D
NEW QUESTION # 92
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. When the used capacity of the directory exceeds 600 GB, data cannot be written.
- C. The total capacity of the directory cannot exceed 1 TB.
- D. When the capacity of the directory exceeds 800 GB, data cannot be written.
Answer: A,B
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 # 93
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