Compared with NAS storage system and file server, what are the advantages of NAS storage system? (Multiple Choice)

• A.High data security
• B.Diversified services and powerful functions
• C.Large storage space
• D.High stability

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Which of the following statements about the smart mutrix architecture of Huawei's flash storage system are correct? (Multiple Choice)

• A.When a controller fails, the business carried by it is forced to switch to the mirror controller.
• B.The front-end interface card can be accessed by all the controllers in the control box at the same time.
• C.The controller in a single engine can access the engine through the SAS 3.0 fully interconnected IO module, which is any hard disk.
• D.The storage pool is evenly distributed on all controllers, and RAID 2.0+ is used to manage all the SSD disks in the storage pool.

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Regarding the description of the Hyper Clone function, which are correct? (Multiple Choice)

• A.If the hard disk of the source LUN configured with Hyper Clone has a physical failure, the service can continue to be provided through the split target LUN
• B.When the business source LUN fails, the data backed up by the Hyper Clone feature can be restored to the business data at any point in time
• C.In the event of a logical failure of the source LUN, data can be reversely synchronized through the target LUN to restore the business of the source LUN
• D.If there are multiple applications that need to use the business data of the source LUN, you can use the Hyper Clone feature to generate multiple target LUNs for multiple applications

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Which of the following are Huawei storage solutions? (Multiple Choice)

• A.Disaster recovery solution
• B.Backup solution
• C.Archiving solutions
• D.Copy solution

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An employee of a company did the following in the company's storage system: 9:00 took a snapshot of LUNA and activated it, 10:00 modified all the data of the snapshot LUN and source LUN, and 11:00 rolled back the snapshot.
Which of the following is correct? (Multiple choice)

• A.After the snapshot is rolled back, the data of the source LUN becomes the data of the modified snapshot LUN at 10:00
• B.The data in the copy space before COW write is 10:00 LUNA data
• C.The data of the source LUN is the modified data at 10:00
• D.The data in the copy space before COW write is 9:00 LUNA data

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