The municipal public security bureau of a city needs to periodically archive each police station's video surveillance data.
If the solution provided by Huawei OceanStor 9000 is used in this scenario, which node type should be recommended?

• A.P72 node
• B.C36 node
• C.P24 node
• D.P12 node
• E.P36 node

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Which of the following statements about the HyperMetro static priority mode are true? (Multiple Choice)

• A.The static priority mode provides higher reliability than the quorum server mode.
• B.If a user powers off the storage system at the preferred site for maintenance purposes, the storage system at the non-preferred site immediately takes over all active-active services without service interruption.
• C.If the storage system at the preferred site is faulty, the non-preferred site automatically takes over active-active services.
• D.If links between sites are down or the non-preferred site fails, LUNS at the preferred site continue to provide services and those at the non-preferred site stop providing services.

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In the era of big data, traditional technology upgrades can no longer meet the needs of big data processing. Which of the following is not the direction of technology development in the era of big data?

• A.From non-relational database to relational database development
• B.Computing is developing towards clustering
• C.Development towards virtualization
• D.The network develops towards a higher level, lower protocol overhead and more effective direction

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In an OceanStor 9000 system, the total number of nodes is 10. What data protection levels can be configured for it? (Multiple choice)

• A.6+3
• B.6+4
• C.6+5
• D.4+5

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In the HyperMetro active-active data center solution, data centers A and B are deployed.
If the storage array in data center A fails, which of the following statemen& are true? (Multiple Choice)

• A.UltraPath automatically disables all paths to data center A and forwards all I/Os to data center B.
• B.The storage array in data center B uses a differential bitmap to record newly received I/Os.
• C.After the storage array in data center A is recovered, the active-active relationship is automatically restored. Based on the differential bitmap, incremental data is automatically synchronized without affecting upper-layer applications.
• D.If the storage array in data center A takes the initiative to power off, a command is sent to the storage array in data center B, asking the storage array to take over services.

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