InfoReplicator supports splitting the Pair, that is, temporarily suspending data synchronization between the master and slave directories. If the user wants to restore the data synchronization of the pair and keep the data in the master and slave directories consistent again, just manually create a new pair.

• A.True
• B.False

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Which of the following storage nodes will configure an SSD as a read cache by default? (Multiple choice)

• A.P25
• B.P12
• C.C36
• D.C72

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Which of the following statements about InfoRevive is correct?

• A.After the read fault tolerance mode is enabled, if the number of failed nodes or disks exceeds the configured upper limit, all the damaged video file data can be recovered.
• B.InfoRevive is applicable not only to video surveillance scenarios, but also to TV stations and other media and assets industries.
• C.After the read/write fault tolerance mode is enabled, if the number of failed nodes or disks exceeds the configured upper limit, a specific proportion of damaged video file data can be recovered and data can still be written to the video file.
• D.InfoRevive ensures continuous availability of video surveillance services when the number of failed nodes or disks exceeds the upper limit.

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Regarding the multi-NameNode concurrency characteristics of Huawei's distributed storage products, which of the following statements are correct? (Multiple choice)

• A.Avoid metadata service interruption caused by traditional HDFS NameNode switching
• B.Multi-directory metadata operations, multi-node full concurrency
• C.Multiple Active NameNodes provide metadata services, and the data among multiple nodes is consistent in real time
• D.The number of files supported by multiple Active NameNodes is no longer restricted by the memory of a single node

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A colleague customized an active-active disaster recovery solution for a customer. The customer already has a third-party storage system and plans to purchase a new OceanStor 5300 V3, and place the two sets of devices in two data centers to implement active-active disaster recovery. Which solution?

• A.Feasible, the storage device meets the requirements of the self-sufficient active-active disaster recovery solution.
• B.Not feasible. The active-active disaster recovery solution only supports Huawei storage and does not support third-party storage.
• C.Not feasible. The active-active disaster recovery solution requires at least two sets of OceanStor V3 storage.

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