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Huawei H19-308_V4.0 Exam Overview:

Certification Vendor:	Huawei
Exam Name:	HCSA-Presales-Storage V4.0
Exam Number:	H19-308_V4.0
Exam Format:	Multiple-choice, True/False, Single-choice
Available Languages:	English
Exam Price:	100 USD
Certificate Validity Period:	N/A
Real Exam Qty:	60
Exam Duration:	90 minutes
Related Certifications:	HCSA-Presales-Storage
Passing Score:	600/1000
Sample Questions:	Huawei H19-308_V4.0 Sample Questions
Exam Way:	Written examination
Pre Condition:	None specified
Official Syllabus URL:	https://e.huawei.com/en/talent/cert/#/cert/overview?certCode=HCSA-Presales-Storage

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H19-308_V4.0 PDF & H19-308_V4.0考試重點

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Huawei H19-308_V4.0 考試大綱：

主題	簡介
主題 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.
主題 2	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.
主題 3	Backup and Disaster Recovery: Backup and disaster recovery strategies protect organizations from data loss through redundant copies of critical information. Comprehensive backup solutions ensure business continuity and enable rapid recovery to minimize downtime.
主題 4	OceanStor New Hybrid Flash Storage: OceanStor Hybrid Flash combines flash and disk storage to balance performance and cost-effectiveness. This architecture optimizes resources by placing performance-sensitive data on flash and capacity-oriented data on disk.

最新的 HCS-Pre-sales H19-308_V4.0 免費考試真題 (Q90-Q95):

問題 #90
In HUAWEI OceanStor V3, for synchronous replication to be successful, all host applications must be paused during the replication update process.

A. FALSE
B. TRUE

答案：A

問題 #91
Which of the following technologies optimize the F V5 series to ensure SSD performance and reliability?

A. Flash Link TM
B. Multi-core CPU optimization
C. Adaptive cache algorithm
D. Intelligent IO scheduling

答案：A,B,C,D

問題 #92
Which statements are incorrect about remote replication and HyperMetro features of storage systems? (Select all that apply)

A. HyperMetro and synchronous remote replication technologies can implement automatic switchover upon a storage system fault.
B. Both LUNs in a remote replication pair can provide services for servers.
C. Synchronous remote replication and HyperMetro technologies require that the distance does not exceed
300 km.
D. Asynchronous remote replication has no limit on the distance.

答案：A,B

解題說明：
According to Huawei's BCManager and HyperReplication guides, " incorrect " statements must be identified to understand the distinction between disaster recovery (DR) and active-active solutions. Option B is incorrect because while HyperMetro supports automatic transparent failover (zero RTO) using a Quorum Server, standard synchronous remote replication typically requires manual intervention or third-party management software to trigger a switchover when the primary site fails. In synchronous replication, the secondary LUN is usually in a read-only state and cannot take over automatically without administrative action.
Option D is incorrect because it describes an " Active-Active " state. In a standard Remote Replication pair, only the primary LUN is accessible for host I/O (Read/Write), while the secondary LUN is locked to maintain data consistency. Only the HyperMetro feature allows both LUNs in the pair to provide simultaneous read and write services to application servers across different sites. Regarding distance, while asynchronous replication is physically less constrained, synchronous and HyperMetro technologies are strictly limited by latency (typically requiring round-trip time < 10ms and distance within 100km to 300km depending on the specific product line) to avoid severe application performance degradation.

問題 #93
What are the characteristics of the HyperMetro for Both SAN and NAS supported by the OceanStor V5 series? (Multiple Choice)

A. Gateway-free, SAN and NAS integration
B. Active-active solution with RPO=0 and RTO RT0
C. Load balancing between active-active sites

答案：A,B,C

問題 #94
What are the major differences between distributed storage and centralized storage?

A. Distributed storage uses general-purpose servers as storage hardware for unified management
B. The distributed architecture facilitates capacity expansion and reduction and eliminates data migration.
C. Distributed storage is applicable to cloud storage resource pools. content repository, archiving.
and big data storage.
D. Distributed storage features high elasticity and scalability accelerating service rollout.

答案：B,C,D

問題 #95
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