Which of the following statements about splitting a remote replication is true?

• A.A remote replication can be split on the primary storage system or the secondary storage system.
• B.A remote replication can be split only on the secondary storage system.
• C.After being split on the primary storage system, a remote replication must be split manually on the secondary storage system too.
• D.A remote replication can be split only on the primary storage system.

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Users of object storage service (compatible with OpenStack Swift APIs) are managed and authenticated by the Keystone server. Registering, creating, and deleting an account must also be performed on the Keystone server.

• A.TRUE
• B.FALSE

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The VSA is installed on the virtual machine, and the MA is installed on the physical machine. Scenarios where this kind of backup networking is not applicable?

• A.Physical MA can be used for other backup tasks, and can also be used for AuxCopy.
• B.DataStore is based on SAN environment
• C.Need to back up directly to tape
• D.A separate backup network can be used to transmit backup data

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In the Huawei remote replication solution, which of the following statements is wrong? (Multiple choice)

• A.Write data directly to the local storage, and use snapshot technology to quickly roll back and restore data
• B.Synchronous remote replication technology can achieve RTU=U, RPO=0,

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A customer purchases nine OceanStor 9000 storage nodes. During the deployment planning, the customer requires that data integrity be not affected if any three disks in a storage node are faulty, and the overall storage space utilization be not lower than 80%.
Which of the following is the most proper redundancy ratio?

• A.8+1
• B.6+3: 1
• C.16 +3: 1
• D.6+3

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