Which of the following description about the multi-version function of the bucket is correct? (Multiple choice)

• A.Whether the multi-version function of the bucket is turned on or off is marked by the multi-version status of the bucket.
• B.Users can use the multi-version function to save, retrieve and restore each version of the object.
• C.The multi-version status of the bucket can be configured and queried.
• D.Multi-version function cannot be used for data retention and archiving

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Every OceanStor V3 model is fitted with at least 6 coffer disks.

• A.FALSE
• B.TRUE

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The data capacity of site A is 2000GB, the data capacity of site B is 3000GB, and the data of site B is remotely copied to site A for storage, then the back-end storage capacity required by site A is (re-deletion ratio is 3):

• A.5000GB.
• B.3000GB.
• C.900GB.
• D.2000GB.

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A company uses Huawei's distributed storage block service to run its data business. The development team needs to use business data for data mining and testing without affecting business data. Which of the following descriptions are correct? (Multiple choice)

• A.Generate a snapshot of the data to be tested at a certain point in time
• B.The source data and the cloned data each evolve into two different data
• C.Create a clone based on the volume/snapshot, read and write the clone
• D.Create a clone of the snapshot and use the clone to test

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To ensure sufficient capacity for storing data, which types of capacity need to be planned? (Multiple Choice)

• A.Capacity used by data base.
• B.Capacity used by file systems.
• C.Capacity used by system.
• D.SmartCache capacity.

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