During a SmartMigration task. (Multiple Choice)

• A.Dual write prevents data loss
• B.Services should be stopped to prevent data loss
• C.I/O to the source LUN is halted
• D.Data is replicated from source to target LUN

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Which of the following scenarios is not suitable for the promotion of active and standby disaster recovery solutions?

• A.The customer configures low-end storage products on the disaster recovery side in order to save costs.
• B.The customer accepts the array layer disaster recovery technology.
• C.Customers need RTO=0, RPO=0

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Storage-layer data replication supports data replication across heterogeneous storage arrays,

• A.TRUE
• B.FALSE

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Highway reconstruction project A adopts Huawei's LightDC ROBO branch solution of hyper-converged storage. Which of the following reflect the advantages of this solution? (Multiple choice)

• A.Rapid deployment
• B.Unified monitoring and management
• C.Quick release of business
• D.Highly integrated, saving space

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File system backup needs to consider compatibility issues. Which of the following statements is wrong?

• A.If the application is not in the backup software compatibility list, you can export the application data to a file by other means, and then back up the file.
• B.Use a new version of the backup software. If the operating system version is too old, an updated version is required.
• C.The operating system or application version is too new, you can wait to update the backup software version.
• D.It is necessary to confirm the type and version of the operating system and file system of the backup source.

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