The object storage services provided by OceanStor9000 (compatible with Amazon S3 and OpenStack Swift) all provide a unified RESTful API. Clients can access storage nodes through STfulAPI to achieve data storage.

• A.False
• B.True

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What are the principles of making a file system backup strategy? (Multiple choice)

• A.Ensure that the network bandwidth used for backup in the same time period is sufficient in the backup window.
• B.Measure the data retention period based on the amount of data.
• C.Measure the frequency of data backup based on the importance of the data.
• D.Measure the task execution time based on the amount of change.

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In the "Oceanstor 9000 Network Diagram", what type of switch b should be?

• A.S5700
• B.IS5023
• C.CE6800

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Internet company A uses Huawei's hyper-converged infrastructure to build the company's information platform, which significantly improves the reliability of the platform. Which of the following reflect this feature? (Multiple choice)

• A.Factory Preset
• B.Compatible with mainstream backup software in the industry
• C.Support dual-active, support zero business interruption
• D.Support asynchronous replication, short RPO time

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What level of RPO and RTO can synchronous remote replication meet?

• A.RPO≈0 RTO=0
• B.RPO>0 RTO>0
• C.RPO=0 RTO≈0
• D.RPO=0 RTO=0

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