Taking Huawei OceanStor all-flash memory as an example, which of the following understandings about a certain structure of all-flash storage software are correct? (Multiple Choice)

• A.Able to support hot and cold data, intelligently able to classify data into different storage tiers
• B.Able to realize basic data storage and reading and writing functions through basic function control software
• C.Able to realize various advanced functions such as backup, disaster recovery and performance tuning through value-added function control software
• D.Able to realize the management function of the storage system through the management function control software

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Which of the following options belong to the subsystem of the storage device? (Multiple Choice)

• A.Storage management software subsystem
• B.Connect the subsystem
• C.Control subsystem
• D.Hardware subsystem

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The earliest form of external storage is to connect some independent disks in series. Only increasing the capacity cannot provide security. Which of the following description is correct?

• A.FAS
• B.NAS
• C.JBOD
• D.SAN

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In Huawei RAID 2.0+, which is the correct description of chunck and extent?

• A.Chunck is the smallest unit of hot data statistics and migration
• B.Chunck is the smallest unit for LUN to apply for and release space from the storage pool
• C.Extent is the smallest unit for the storage pool to allocate resources from the hard disk domain
• D.The extent size of different storage pools can be different, but the extent size in the same storage pool is uniform

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In the storage system, which of the following statements about cables are correct? (Multiple Choice)

• A.mini SAS HD cables are divided into mini SAS HD cables and mini SAS HD optical cables
• B.The serial port cable is used to connect the expansion port and connect the controller subrack to the hard disk subrack
• C.The mini SAS HD cable is used to connect the PCle interface of the controller in the control box to the data switch
• D.One end of the fiber can be connected to the FC HBA card, and the other end to the fiber switch or storage

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