What versions of the NFS protocol are there? (Multiple choice)

• A.NFS V2
• B.NFS V1
• C.NFS V4
• D.NFS V3

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A company's applications and data have high security requirements. During the inspection, it was found that two NL-SAS hard disks were offline and the data was lost. In order to avoid this situation, it is necessary to complete the RAID configuration and require the utilization of the hard disk. To be greater than 60%, which of the following are eligible? (Multiple Choice)

• A.Use 4+P hard disk to create RIAD 5
• B.Use 4+2P hard drives to create RAID 6
• C.Use 2+2P hard drives to create RAID 6
• D.Use 6+2P hard drives to create RAID 6

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The composition of the backup system does not include?

• A.Backup media
• B.Backup strategy
• C.Backup server
• D.Backup software

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Which of the following statements is correct about dual-controller storage? (Multiple Choice)

• A.There are two working programs: Active-Standby mode and Active-Active mode
• B.Compared with the Active-Standby mode, when a controller fails, the active-active mode switches higher
• C.There is only one controller at the same time in Active-Standby mode
• D.In the Active-Standby mode, a controller is not enough for business at all

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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.Control subsystem
• C.Hardware subsystem
• D.Connect the subsystem

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