Which of the following statements about intelligent load balancing implemented by Huawei OceanStor 9000 are true? (Multiple Choice)

• A.Load balancing automatically implemented among all nodes
• B.Automatic balancing of capacity and performance
• C.Free from manual intervention
• D.Transparent to applications

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Which of the following backup media do not support deduplication? (Multiple Choice)

• A.OceanStor 5300 V3
• B.OceanStor 2200 V3
• C.S2600T
• D.OceanStor 2600 V3

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In Simpana backup software, which is correct about incremental backup?

• A.Back up the data that has changed since the last backup
• B.Back up the changed data since the last full backup
• C.Backup of all data after the initial backup
• D.Complete backup of all data

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In the following RAID levels, if there are 2 hard disk failures in the RAID, which of the following will lost the data? (Multiple choice)

• A.RAID 5
• B.RAID 3
• C.RAID 0
• D.RAID 6

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An engineer needs to perform a snapshot rollback operation to obtain source data at a certain time in the past. Regarding this operation process, which of the following statements are correct? (Multiple choice)

• A.If the data is rolled back to the snapshot at time A, the snapshots created after time A will be deleted
• B.Snapshot rollback speed can reach the second level
• C.If the data is rolled back to the snapshot at time A, the snapshots created after time A will not be deleted
• D.Snapshot rollback is a full copy recovery of the source data at a certain point in time

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