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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Huawei OceanStor Hybrid Flash Storage | 10% | - Solution planning and recommendation - Product characteristics and advantages |
| Topic 2: Huawei OceanStor Pacific Distributed Storage | 5% | - Architecture and applicable scenarios |
| Topic 3: Backup and Disaster Recovery Technologies | 18% | - Backup types and strategies - Disaster recovery principles and solutions |
| Topic 4: Huawei OceanStor Dorado All-Flash Storage | 15% | - Product positioning and key features - Typical application scenarios |
| Topic 5: Huawei OceanProtect Backup Storage | 5% | - Backup and recovery capabilities |
| Topic 6: SAN Storage Basics | 17% | - LUN management and access - SAN architecture and protocols (FC, iSCSI) |
| Topic 7: Object Storage Basics | 10% | - Object storage concepts and features - Application scenarios of object storage |
| Topic 8: Data Storage Basics | 8% | - Basic concepts and architectures of storage systems - Storage media and technologies |
| Topic 9: NAS Storage Basics | 12% | - File system and sharing principles - NAS protocols (NFS, SMB/CIFS) |
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NEW QUESTION # 89
Which are the advantages of Dorado Vo smart disk enclosures?
Answer: A,B,D
NEW QUESTION # 90
Which statements about enterprise-level and desktop-level disks are correct?
Answer: A,B,C
NEW QUESTION # 91
Files in the WORM (Write Once, Read Many) state can be read but cannot be modified.
Answer: B
Explanation:
Huawei's HyperLock feature provides WORM (Write Once, Read Many) functionality for NAS file systems.
When a file is placed in the WORM state, the storage system strictly enforces a policy where the file ' s data can be accessed and read by authorized users, but any attempt to modify, overwrite, or delete the file is blocked by the storage controller.
In the Huawei OceanStor system, a file enters the WORM state after it is " locked. " Once locked, the file remains in a read-only state for a defined retention period. During this time, not even an administrator can modify the file ' s content or reduce its protection duration. This is critical for meeting regulatory compliance (such as SEC Rule 17a-4) and for protecting sensitive data against ransomware, as it ensures that once data is archived, it remains immutable and verifiable. Only after the retention period has expired can the file be deleted, though it can still never be modified.
NEW QUESTION # 92
Which statements are correct about NVMe over Fabrics (NVMe-oF) (RoCE v2)? (Select all that apply)
Answer: B,C
Explanation:
NVMe over Fabrics (NVMe-oF) using the RoCE v2 (RDMA over Converged Ethernet) protocol is a high- speed communication technology supported by Huawei OceanStor Dorado systems. Option B is correct because RoCE v2 utilizes RDMA, which allows data to be transferred directly from the memory of one computer to another without involving the CPU of either system. This significantly reduces latency and CPU overhead compared to traditional iSCSI.
Option C is correct because RoCE v2 requires a " Lossless Ethernet " environment to function correctly.
Traditional Ethernet (Option A) is a " best-effort " delivery system that allows for packet drops during congestion; however, RDMA protocols are highly sensitive to packet loss. To support RoCE v2, the network must implement Data Center Bridging (DCB) features like Priority Flow Control (PFC) and Enhanced Transmission Selection (ETS) to ensure a zero-packet-loss environment. Regarding cost (Option D), RoCE v2 often leverages existing Ethernet infrastructure, making it generally more cost-effective than deploying a dedicated Fibre Channel (FC) fabric, which requires specialized HBAs and FC switches.
NEW QUESTION # 93
What are the highlights of the OceanStor V5 in convergence?
Answer: A,B,C,D
NEW QUESTION # 94
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