Download the Updated H19-308_V4.0-ENU Dumps (V11.02) to Prepare for Your HCSA-Presales-Storage V4.0 Certification Exam – DumpsBase Ensures Your Success

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1. Which of the following operations are recorded in NAS audit logs? (Select all that apply)

File renaming

File modification

File deletion

File opening

2. What are the advantages of object storage over traditional NAS storage? (Select all that apply)

HTTP/HTTPS is more universal than NFS/CIFS and supports Internet access.

Customized metadata is easy to manage.

Tree-shaped directories and hierarchical management are easy to understand.

The flat structure is easy to expand.

3. What are the main application scenarios for SAN storage? (Select all that apply)

Big data storage

VMware virtualization

Database

Mass file sharing

4. Which of the following domain controller systems is supported by the SMB protocol?

LDAP

NIS

Active Directory

5. Which of the following features is used to improve the performance of the new-gen OceanStor hybrid flash storage? (Select all that apply)

SmartDedupe

SmartAcceleration

SmartCache

SmartTier

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

Asynchronous remote replication has no limit on the distance.

HyperMetro and synchronous remote replication technologies can implement automatic switchover upon a storage system fault.

Synchronous remote replication and HyperMetro technologies require that the distance does not exceed 300 km.

Both LUNs in a remote replication pair can provide services for servers.

7. What are the characteristics of DAS? (Select all that apply)

Connects to servers without using network devices.

Used for block storage services.

Directly connects to servers.

Used for file storage services.

8. RAID 0 is actually a mirroring technology.

TRUE

FALSE

9. Files in the WORM (Write Once, Read Many) state can be read but cannot be modified.

TRUE

FALSE

10. Which statements about OceanStor Dorado reliability are correct? (Select all that apply)

RAID-TP tolerates the failure of three SSDs. The full-mesh architecture tolerates the failure of seven out of eight controllers.

Global wear leveling and anti-wear leveling are used for SSDs.

SAN and NAS HyperMetro solutions are provided.

Disk enclosure failure can be tolerated through redundancy protection.

11. Which of the following basic elements are contained in an object? (Select all that apply)

Object identifier (OID)

Customized metadata

System metadata

Data

12. Incremental backup requires the previous full backup and incremental backup to fully restore data. Data reconstruction is slower than full backup, and the restoration is long.

TRUE

FALSE

13. What will RAID 6 (7+2) change into after dynamic reconstruction of OceanStor Dorado if one SSD failed in a 9-SSD storage pool?

RAID 6 (6+2)

RAID 5 (5+1)

RAID 6 (7+1)

RAID 6 (5+2)

14. Which of the following statements are correct about quotas of object storage? (Select all that apply)

Tenant quota: After the capacity for written data of a tenant is used up, no more data can be written by the tenant.

An alarm or event is triggered when the number of resources reaches the limit.

A quota is a method of controlling resource access.

Bucket quota: After the capacity for written data of a bucket is used up, no more data can be written to the bucket.

15. Which of the following replication modes are supported by remote replication? (Select all that apply)

Synchronous remote replication

Semi-synchronous remote replication

Asynchronous remote replication

Semi-asynchronous remote replication

16. To support the NAS active-active function, the new-gen hybrid flash storage requires a NAS gateway.

TRUE

FALSE

17. SCSI applies to SAN storage with HDDs, and NVMe applies to all-flash SAN storage.

TRUE

FALSE

18. Through what feature does Dorado support stable and convenient system upgrade?

SmartMatrix

Non-disruptive Upgrade

HyperZoom

HyperCDP

19. Which is the DR management software provided by Huawei?

SystemReporter

DeviceManager

BCManager

eService

20. When user A modifies a file in the NAS system, which of the following operations can user B perform on the file?

File deletion

File reading

File modification

File renaming

21. What are the topologies of a Fibre Channel (FC) network? (Select all that apply)

Fabric

Bus

Point-to-point

Arbitrated loop

22. When RAID 5 is configured for the new-gen OceanStor hybrid storage, how many write penalties are generated in one full-stripe write operation?

2

4

0

1

23. Which of the following statements about object storage are correct? (Select all that apply)

Object storage supports replication between regions.

Object storage can be deployed across regions.

Global namespace enables object storage to be deployed and accessed across regions and AZs.

For cross-site replication of object storage, the distance between sites can be up to thousands of kilometers.

24. A snapshot is a full copy of a LUN in SAN storage.

TRUE

FALSE

25. Which are the SAN types classified by architecture? (Select all that apply)

IP SAN

Distributed SAN

FC SAN

Centralized SAN

26. What feature provided by OceanStor Dorado is used for high-frequency data protection (snapshot in seconds)?

HyperCDP

HyperReplication

HyperLock

HyperVault

27. Which of the following are supported by OceanStor Dorado high-end models? (Select all that apply)

Tolerance of the failure of one controller enclosure

Symmetric active-active controllers

Smart disk enclosures

Automatic tiering between SSD and HDD

28. Which of the following topologies are supported by Huawei 3DC (Three-Data-Center) DR solution? (Select all that apply)

DR Star network

Cascading network

Parallel network

29. Which of the following can be used as backup media? (Select all that apply)

Disc

Cloud

Disk

Tape library

30. A customer wants to purchase an object storage system to be used by different departments. These departments are independent of each other and cannot access each other's data. Therefore, the data capacity of different departments needs to be limited.

Which of the following object storage features will you recommend to the customer? (Select all that apply)

Replication

WORM

Multi-tenancy

Quota

31. Which of the following will NOT occur after you set the hard, soft, and advisory quotas for a 1 TB directory to 800 GB, 700 GB, and 600 GB, respectively? (Select all that apply)

The total capacity of the directory cannot exceed 1 T

When the used capacity of the directory exceeds 700 GB, data cannot be written.

When the used capacity of the directory exceeds 600 GB, data cannot be written.

When the capacity of the directory exceeds 800 GB, data cannot be written.

32. Which features can improve system performance in SAN storage? (Select all that apply)

Level-2 cache (SSD cache)

Thin provisioning

Data deduplication

Storage tiering

33. The recovery time objective (RTO) in a DR system refers to the time to which the system and data must be recovered after a disaster occurs.

TRUE

FALSE

34. Which statements are correct about NVMe over Fabrics (NVMe-oF) (RoCE v2)? (Select all that apply)

Traditional Ethernet can transmit NVMe-oF (RoCE v2) data packets without packet loss.

NVMe-oF (RoCE v2) significantly improves performance by using Remote Direct Memory Access (RDMA).

Lossless Ethernet can transmit NVMe-oF (RoCE v2) data packets.

The cost of NVMe-oF (RoCE v2) is generally higher than that of NVMe-oF (Fibre Channel).

35. When two OceanStor Dorado 18000 controller enclosures are used, data access is not affected even if multiple controllers are faulty.

Which of the following can be tolerated by Dorado 18000? (Select all that apply)

Failure of one controller

Failure of seven controllers

Simultaneous failure of two controllers

Failure of one controller enclosure

36. iSCSI is implemented based on TCP/IP and has better scalability than Fibre Channel.

TRUE

FALSE

37. In safe city video storage scenarios, if a customer needs to deploy 10,000 cameras, which of the following Huawei storage products is recommended?

OceanStor Dorado NAS

OceanStor hybrid flash storage NAS

OceanStor Pacific

OceanProtect

38. Backup focuses on service continuity, while disaster recovery focuses on data recoverability.

TRUE

FALSE

39. Which network protocols are supported by SAN storage? (Select all that apply)

Fibre Channel

InfiniBand

iSCSI

NFS

40. By deploying an object storage gateway based on the existing SAN or NAS storage, the S3 object storage service can be quickly provided. This is the mainstream delivery mode in the future.

TRUE

FALSE

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