For a replication consistency group in a normal state, before the master-slave switchover, which operation needs to be performed on the replication consistency group?

• A.Switch directly without any operation
• B.Cancel write protection from the end
• C.Split
• D.Adjust the recovery strategy to manual

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Which of the following options is not a feature of distributed storage big data service solutions?

• A.High performance support EC, better than native HDFS 3.0
• B.Distributed NameNode
• C.EC mechanism that is truly fully compatible with native HDFS semantics
• D.Integrated deployment, storage and calculation are configured in proportion

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Which node types does Huawei OceanStor 9000 support? (Multiple choice)

• A.P25
• B.C36
• C.P12
• D.P36

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The customer has a third-party storage system and wants to build a local high-availability solution for the storage system. He plans to purchase OceanStor 5600 V3 and only purchase the HyperMirror license. This solution is?

• A.Not feasible. HyperMirror needs to be combined with SmartVirntualization features to achieve local high availability of heterogeneous storage systems.
• B.Not feasible, HyperMirror needs to be combined with HyperCopi features to achieve local high availability of heterogeneous storage systems.
• C.Feasible, the conditions meet the local high-availability requirements.
• D.Not feasible, HyperMirror needs to be combined with HyperClone features to achieve local high availability of heterogeneous storage systems.

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In OceanStor V3 storage systems, remote replication allows a user to perform a primary/secondary switchover when the secondary LUN is in which data statuses? (Multiple Choice)

• A.Synchronized
• B.Synchronizing
• C.Initially synchronizing
• D.Consistent

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