Which of the following options are not part of the DFS adaptation layer software module in OceanStor9000?

• A.OBS
• B.CA
• C.MDS
• D.PVS

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How are full backup, cumulative incremental backup, and differential incremental backup sorted according to their occupation of backup media?

• A.Differential incremental backup > full backup > cumulative incremental backup
• B.Full backup > cumulative incremental backup > differential incremental backup
• C.Full backup > differential incremental backup > cumulative incremental backup
• D.Cumulative incremental backup > differential incremental backup > full backup

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Which of the following are the disadvantages of choosing cloud storage as a backup medium?

• A.Need high bandwidth network
• B.Capacity is not easy to expand
• C.Backup media needs to be managed
• D.Not easy to deploy

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Which of the following statements about concepts related to the HyperReplication feature are correct? (Multiple choice)

• A.Split refers to the suspension of data synchronization from the primary LUN to the secondary LUN
• B.A consistency group refers to a collection of pairs associated with multiple services
• C.Synchronization refers to the process of copying data from the slave LUN to the master LUN
• D.Pair refers to the data replication relationship between the master LUN and the slave LUN

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The storage device has two controllers A and B.
If the BBU of controller A fails, which of the following descriptions is correct?

• A.All LUNs are converted to write-through
• B.All LUNs are not converted to write-through
• C.LUNs belonging to controller A will be converted to write-through
• D.LUNs belonging to controller B will be converted to write-through

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