Huawei H19-308_V4.0 Dumps - 100% Cover Real Exam Questions (Updated 94 Questions)
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NEW QUESTION # 24
Compared with peer vendors, what is uniquely supported by OceanStor Dorado high-end models to achieve high availability?
- A. Tolerating the failure of two controllers
- B. Tolerating the failure of seven out of eight controllers
- C. Tolerating the failure of one controller
Answer: B
Explanation:
OceanStor Dorado high-end models uniquely support the ability to tolerate the failure of seven out of eight controllers, ensuring extremely high availability. This level of fault tolerance is a distinctive feature compared to peer vendors, allowing the system to continue operating even under multiple controller failures.
NEW QUESTION # 25
What are the reliability features of OceanProtect backup storage? (Choose all that apply.)
- A. Deduplication and compression
- B. RAID-TP
- C. DataTurbo
- D. Active-active controllers
Answer: B,D
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 # 26
Which model supports expansion of up to 32 controllers?
- A. OceanStor Dorado 18000 V6
- B. OceanStor Dorado 5000 V6
- C. OceanStor Dorado 3000 V6
- D. OceanStor Dorado 6000 V6
Answer: A
NEW QUESTION # 27
Which of the following NL-SAS disk specifications does OceanStor V5 NOT support?
- A. 2 TB
- B. 10 TB
- C. 3 TB
- D. 8 TB
- E. 6 TB
- F. 4TB
Answer: C
NEW QUESTION # 28
What are the backup networking modes? (Choose all that apply.)
- A. LAN-Free
- B. Server-Free
- C. SAN-Base
- D. LAN-Based
Answer: A,C,D
Explanation:
The main backup networking modes are LAN-Based (data transferred over the local area network), SAN-Base (data transferred over the storage area network), and LAN-Free (bypassing the LAN by using direct connections between backup servers and storage). Server-Free is not a standard backup networking mode.
NEW QUESTION # 29
SmartQoS allows preferential response to high-priority services.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 30
Post-process deduplication and compression are more suitable for SSD storage.
- A. FALSE
- B. TRUE
Answer: A
Explanation:
Inline deduplication and compression are generally more suitable for SSD storage because they reduce the amount of data written to the SSDs in real-time, extending the lifespan of the SSDs and improving performance. Post-process deduplication and compression, on the other hand, are performed after data is written, which can increase write amplification and reduce SSD lifespan, making them less ideal for SSD storage.
NEW QUESTION # 31
Which of the following features is used to improve the performance of the new-gen OceanStor hybrid flash storage?
- A. Smart Dedupe
- B. Smart Tier
- C. SmartCache
- D. SmartAcceleration
Answer: D
Explanation:
SmartAcceleration is a feature specifically designed to improve the performance of the new- generation OceanStor hybrid flash storage by optimizing data paths and accelerating I/O processing.
NEW QUESTION # 32
How many faulty nodes can OceanStor Pacific tolerate at most?
- A. 2 nodes
- B. 1 node
- C. 4 nodes
- D. 3 nodes
Answer: C
Explanation:
According to the Huawei OceanStor Pacific series data sheet and reliability manuals, the system utilizes Elastic Erasure Coding (EC) for data redundancy protection. This technology is more efficient than traditional RAID and allows for higher levels of tolerance in a distributed environment.
Specifically, a single OceanStor Pacific storage system can be configured to tolerate the simultaneous failure of up to four nodes (or four cabinets in a multi-cabinet deployment) without data loss or service interruption. When a node fails, the system automatically triggers a background reconstruction process to restore redundancy using the remaining healthy nodes. The flexibility of dynamic EC ratios (N+M) allows the system to adjust to these faults while maintaining optimal space utilization and reliability.
NEW QUESTION # 33
Which of the following statements are incorrect about permission management of object storage?
- A. An ACL grants an account the permission to access resources.
- B. Object storage can use an ACL or bucket policy to manage permissions.
- C. Access control list (ACLs) can be used to grant and deny permissions.
- D. A bucket policy is used to control the permission of a single user or multiple users to access a bucket or objects in the bucket.
Answer: A
Explanation:
This statement is incorrect because an ACL (Access Control List) in object storage typically grants permissions at a more granular level, such as for specific users or groups to access individual objects or buckets. It does not typically grant permissions to an entire account to access all resources. The other statements correctly describe aspects of permission management in object storage.
NEW QUESTION # 34
Which of the following has the best random read/write performance for small files?
- A. SAS
- B. SSD
- C. SATA
- D. NL-SAS
Answer: B
NEW QUESTION # 35
What is the maximum number of disks supported by the OceanStor 2200 V3?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 36
Dorado V3 supports post-process compression. Data can be compressed after being written into SSDs.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 37
Which advantages does Dorado V3 have in the VDI scenario? (Multiple Choice)
- A. No desktop boot/login storm
- B. Support to more virtual desktops based on high performance, inline deduplication and compression
- C. Faster response of desktops
- D. Larger storage capacity
Answer: A,B,C
NEW QUESTION # 38
OceanStor Dorado is the new benchmark for all-flash unified storage with industry-leading stability and SAN/NAS performance, as well as intelligent and efficient O&M.
- A. FALSE
- B. TRUE
Answer: B
Explanation:
OceanStor Dorado provides industry-leading all-flash unified storage with top-tier stability, high SAN/NAS performance, and advanced intelligent O&M features, making the statement correct.
NEW QUESTION # 39
HyperLock is the name of the file system WORM feature in OceanStor V5 and provides legal compliance protection mode.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 40
The Dorado V3 competitors include:
- A. NetApp A700
- B. IBM Flash System 9100
- C. Power MAX
- D. Pure Storage
- E. HPE 3PAR8450
Answer: A,B,C,D,E
NEW QUESTION # 41
What protocols does the DAS interface support?
- A. Fibre Channel
- B. InfiniBand
- C. iSCSI
- D. SAS
Answer: A,B,D
Explanation:
DAS directly connects storage devices to servers without using a shared storage network. Therefore, DAS commonly uses direct-attached interface technologies such as SAS, Fibre Channel, and InfiniBand, depending on the server and storage hardware design. SAS is widely used for direct disk or enclosure attachment. Fibre Channel can also be used in direct-attached configurations where a server connects directly to storage ports without an FC switching fabric. InfiniBand is a high-speed interconnect that can be used in specialized direct storage environments requiring high bandwidth and low latency. iSCSI is not normally classified as a DAS interface because it encapsulates SCSI commands over TCP/IP and is used for IP SAN connectivity through Ethernet networks. Therefore, the supported DAS interface protocols are SAS, Fibre Channel, and InfiniBand.
NEW QUESTION # 42
What are the highlights of OceanStor Dorado?
- A. Covers all scenarios and ranks No. 1 in the industry.
- B. Intelligent O & M: Intelligent collaboration on the cloud is implemented.
- C. Ever fast: Performance reaches 21 million IOPS with only 0.05 ms latency. NAS performance is 30% higher than the peer vendor ranked closest.
- D. Ever solid: For SAN and NAS HyperMetro, the failure of seven out of eight controllers can be tolerated.
Answer: A,B,C,D
Explanation:
OceanStor Dorado is Huawei's all-flash storage platform positioned around performance, reliability, scenario coverage, and intelligent operations. Option A reflects the performance highlight: Dorado is designed for extremely high IOPS and ultra-low latency, making it suitable for databases, virtualization, core banking, and latency-sensitive enterprise workloads. Option B is also valid because Dorado covers both SAN and NAS scenarios and is positioned as a leading all-flash storage system across industries. Option C is correct because Dorado's high-end SmartMatrix architecture and HyperMetro capabilities provide strong resilience, including controller-level fault tolerance for mission- critical services. Option D is correct because Huawei emphasizes intelligent O & M through cloud- based analytics, proactive risk identification, and simplified management. Together, these highlights describe Dorado's value proposition: fast, reliable, broadly applicable, and intelligently managed.
NEW QUESTION # 43
Which of the following are supported by OceanStor Dorado high-end models? (Choose all that apply.)
- A. Tolerance of the failure of one controller enclosure
- B. Symmetric active-active controllers
- 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 # 44
To reduce costs, general-purpose servers are commonly used for object storage.
- A. True
- B. False
Answer: B
NEW QUESTION # 45
What enable Dorado V6 to deliver such high performance?
- A. End-to-end NVMe protocol
- B. Smart disk enclosure collaboration algorithm
- C. Five Huawei-developed chips
- D. Higher performance provided by HDDs
Answer: A,B,D
NEW QUESTION # 46
Thin provisioning allocates storage space on demand, improving resource utilization.
- A. FALSE
- B. TRUE
Answer: B
Explanation:
Huawei's SmartThin technology is a thin provisioning feature that allows storage administrators to allocate more logical capacity to servers than is physically available in the storage pool. Traditionally, "thick provisioning" reserves the entire capacity of a LUN the moment it is created, leading to significant "stranded" or wasted space if the application does not immediately use it.
With SmartThin, the storage system only consumes physical blocks when data is actually written to the disk. This "on-demand" allocation ensures that physical resources are shared across multiple LUNs more efficiently. For example, a 10 TB LUN might be presented to a database, but if the database only contains 2 TB of data, only 2 TB of physical space is consumed. This significantly improves the Storage Resource Utilization Rate and reduces the Total Cost of Ownership (TCO) by delaying the need to purchase additional physical disks until the actual consumed capacity approaches the physical limits of the array.
NEW QUESTION # 47
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