The OceanStor backup solution architecture includes three parts: the central site, branch sites, and remote backup sites. Only the backup system can be deployed at the backup site, but the production system cannot be deployed.

• A.True
• B.False

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In data backup scenarios, which of the following statements about optical discs is false?

• A.Data can be stored for a long period of time.
• B.Applicable to the scenarios that require a large backup capacity
• C.Applicable to the scenarios that do not require a high backup speed
• D.Applicable to the scenarios where data is seldom erased

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In Huawei distributed storage, the block service asynchronous remote replication architecture is based on the block service cluster to build an asynchronous replication relationship. Based on the difference data, the data of the master and slave volumes are periodically synchronized. From the data synchronization of the last synchronization cycle completes to the current synchronization starts, all data generated on the master volume will be written to the slave volume during this synchronization.

• A.False
• B.True

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Before deploying and implementing storage devices, you need to plan and design storage solutions. Which of the following options should be performed during the planning and design process? (Multiple choice)

• A.Confirm whether the computer room provides AC or DC power
• B.Storage network segment planning
• C.Confirmation of compatibility of operating system and storage
• D.Storage system upgrade planning

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Which of the following description of the principles of making a backup strategy is wrong?

• A.Measure the data retention period based on the amount of data
• B.Measure backup media based on the discreteness of data
• C.Measure task execution time based on the amount of data change
• D.Measure the frequency of data backup based on the importance of the data

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