n the Huawei Oceanstor 9000 software architecture, the distributed object storage layer is built on the basis of the distributed file storage layer.

• A.False
• B.True

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In the five-step method of disaster recovery plan design, which is the correct sequence of the following steps in the design process?

• A.Disaster recovery solution selection -> compatibility confirmation -> storage capacity and disaster tolerance bandwidth calculation -> network design -> disaster tolerance function design
• B.Compatibility confirmation->Network design->storage capacity and disaster tolerance bandwidth calculatio->Disaster recovery solution selection->disaster tolerance function design
• C.Disaster recovery solution selection->Network design->storage capacity and disaster tolerance bandwidth calculatio->Compatibility confirmation->Disaster tolerance function design
• D.Compatibility confirmation->Network design->storage capacity and disaster tolerance bandwidth calculatio->Disaster tolerance solution selection->Disaster tolerance function design

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Operation and maintenance includes a variety of capability requirements, not only product technology, but also management systems, processes, and other elements.

• A.True
• B.False

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What type of cables is used to connect disk enclosures in the OceanStor V3 series?

• A.Mini SAS HD cable
• B.Serial cable
• C.Optical fiber
• D.10G Ethernet cable

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A multinational company has a huge business, with customer business data scattered in multiple locations, and the distance between locations is greater than 1000 km. The company hopes to centrally manage the backup data of each site, so that users can analyze and mine all data without affecting normal business, and any business site suffers a disaster, the company can take over the business and perform data recovery. In this case, which disaster recovery backup solution should the enterprise choose?

• A.Central disaster recovery and backup plan, synchronous remote replication is selected between the business site and the central site
• B.Two-site three-center plan, synchronous remote replication is selected between sites
• C.Central disaster recovery and backup plan, asynchronous remote replication is selected between the business site and the central site
• D.Two-site three-center plan, asynchronous remote replication is selected between sites

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