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Huawei H19-308_V4.0 Exam Syllabus Topics:

Topic	Details
Topic 1	Object Storage Basis: Object storage manages data as discrete units with metadata and unique identifiers for efficient retrieval. This scalable architecture suits unstructured data, cloud applications, and big data analytics requiring massive capacity.
Topic 2	OceanProtect Backup Storage: OceanProtect offers comprehensive data protection with efficient backup, recovery, and retention features. This solution ensures security through encryption and deduplication while reducing storage costs.
Topic 3	NAS Storage Basis: Network-Attached Storage delivers file-level storage over standard networks, accessible to multiple users simultaneously. NAS systems offer cost-effective solutions for file sharing, collaboration, and centralized data management.
Topic 4	OceanStor Pacific: OceanStor Pacific is Huawei's distributed storage for massive-scale data management and cloud-native applications. It provides scalability, resilience, and performance for big data, AI workloads, and large-scale storage.

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Huawei HCSA-Presales-Storage V4.0 Sample Questions (Q83-Q88):

NEW QUESTION # 83
Which of the following statements are correct about quotas of object storage? (Select all that apply)

A. Bucket quota: After the capacity for written data of a bucket is used up, no more data can be written to the bucket.
B. Tenant quota: After the capacity for written data of a tenant is used up, no more data can be written by the tenant.
C. A quota is a method of controlling resource access.
D. An alarm or event is triggered when the number of resources reaches the limit.

Answer: A,B,C,D

Explanation:
In Huawei's object storage management (OceanStor Pacific), quotas are a critical administrative tool for resource governance. Option C is correct as quotas serve as a fundamental method for controlling how much of the physical resource pool a specific entity (tenant or user) can access and consume.
Option A and D are correct because Huawei supports both Tenant-level and Bucket-level quotas. Once a Hard Quota limit is reached for a tenant or a specific bucket, the storage system will reject further write requests (PUT operations) to prevent exceeding the allocated budget. Option B is correct because the storage management system (DeviceManager or eSight) integrates with the quota system to trigger alarms when usage reaches predefined thresholds (such as 80% or 90%) or when the resource limit is reached, allowing administrators to take proactive measures like expanding the quota or cleaning up data.

NEW QUESTION # 84
Which of the following statements is incorrect about redundant array of independent disks (RAID)?

A. RAID 6 supports data striping, distributed check, and two-level redundancy.
B. Different RAID levels can be selected for different services.
C. RAID combines multiple independent disks into one logical disk in different modes.
D. RAID reduces the performance and read/write security of disks.

Answer: D

Explanation:
This statement is incorrect because RAID is designed to enhance data security (through redundancy) and can also improve performance, depending on the RAID level chosen.

NEW QUESTION # 85
DAS is a centralized shared storage system.

A. FALSE
B. TRUE

Answer: A

Explanation:
The statement is false. DAS, or Direct-Attached Storage, is not a centralized shared storage architecture. It is storage that connects directly to a single server or host without passing through a dedicated storage network. Because of this direct connection, the storage resources are normally controlled by the attached server and are not naturally shared by multiple servers. A centralized shared storage system is more accurately represented by SAN or NAS. SAN provides shared block-level storage to multiple hosts through FC, iSCSI, or similar storage networks, while NAS provides shared file-level storage through protocols such as NFS or SMB/CIFS. DAS is simple and low-cost for small deployments, but it has limitations in scalability, sharing, and centralized management. Therefore, DAS should not be described as centralized shared storage.

NEW QUESTION # 86
Which of the following statements about object storage are correct? (Select all that apply)

A. For cross-site replication of object storage, the distance between sites can be up to thousands of kilometers.
B. Object storage supports replication between regions.
C. Object storage can be deployed across regions.
D. Global namespace enables object storage to be deployed and accessed across regions and AZs.

Answer: A,B,C,D

Explanation:
Huawei's object storage solution (OceanStor Pacific/OBS) is designed for massive scalability and high availability across geographic boundaries. Option C is correct because the Global Namespace feature abstracts the physical location of data, allowing users to access objects via a single URL/endpoint regardless of which Data Center or Availability Zone (AZ) the data physically resides in. This simplifies application development and data management at scale.
Options A and B are correct as the architecture supports multi-regional deployment. Data can be replicated between regions to ensure disaster recovery and data sovereignty. Unlike traditional SAN/NAS replication which is often limited by latency-sensitive synchronous protocols, object storage utilizes asynchronous transfer mechanisms optimized for the HTTP/S3 protocol. This leads to Option D being correct; because object storage replication is typically asynchronous and handles high latency well, sites can be separated by thousands of kilometers, making it an ideal solution for global data distribution and remote site backup.

NEW QUESTION # 87
Which types of host ports are supported by the 2200 V3? (Multiple Choice)

A. 10 Gbit/s FCoE
B. 10 Gbit/s iSCSI
C. 16/8Gbit/s FC
D. 1 Gbit/s iSCSI
E. SAS

Answer: A,B,C,D

NEW QUESTION # 88
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