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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Huawei OceanStor Hybrid Flash Storage | 10% | - Product characteristics and advantages - Solution planning and recommendation |
| Topic 2: Backup and Disaster Recovery Technologies | 18% | - Backup types and strategies - Disaster recovery principles and solutions |
| Topic 3: Huawei OceanStor Dorado All-Flash Storage | 15% | - Product positioning and key features - Typical application scenarios |
| Topic 4: Huawei OceanProtect Backup Storage | 5% | - Backup and recovery capabilities |
| Topic 5: Huawei OceanStor Pacific Distributed Storage | 5% | - Architecture and applicable scenarios |
| Topic 6: Object Storage Basics | 10% | - Object storage concepts and features - Application scenarios of object storage |
| Topic 7: NAS Storage Basics | 12% | - NAS protocols (NFS, SMB/CIFS) - File system and sharing principles |
| Topic 8: Data Storage Basics | 8% | - Basic concepts and architectures of storage systems - Storage media and technologies |
| Topic 9: SAN Storage Basics | 17% | - LUN management and access - SAN architecture and protocols (FC, iSCSI) |
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NEW QUESTION # 70
Which of the following basic elements are contained in an object? (Select all that apply)
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 # 71
In safe city video storage scenarios, if a customer needs to deploy 10,000 cameras, which of the following Huawei NAS products is recommended?
Answer: C
Explanation:
OceanStor Pacific is designed for large-scale, high-capacity storage scenarios, such as safe city video storage, where vast amounts of unstructured video data are generated. It provides high scalability, performance, and cost-effectiveness, making it suitable for deployments involving thousands of cameras.
NEW QUESTION # 72
When user A modifies a file in the NAS system, which of the following operations can user B perform on the file?
Answer: B
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 # 73
NAS does not support file sharing between Windows and Linux systems due to different protocols.
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 # 74
How many faulty nodes can OceanStor Pacific tolerate at most?
Answer: B
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 # 75
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