Regarding the description of the cache in Huawei Oceanstor 9000, which of the following is incorrect?

• A.The second level cache is composed of SSD disks. If there is no SSD disk in the node, there is no the second level cache
• B.The first level cache is the read cache of the storage node, and the location of the global cache is in the first level cache
• C.The second level cache is used to cache the hot data of this node. At the same time cache the hot data of the same node and other nodes
• D.The telegram cache (NVDIMM) is mainly used as a write cache.

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In a VMware backup scenario, if a non-SAN transmission mode is used, backup data is transferred from production storage to VSA by the EXS host, and is written to backup storage by MA.

• A.TRUE
• B.FALSE

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Which of the following statements about the concepts related to the HyperReplication feature are correct? (Multiple choice)

• A.A consistency group refers to a collection of pairs associated with multiple services
• B.Pair refers to the data replication relationship between the master LUN and the slave LUN
• C.Split refers to the suspension of data synchronization from the primary LUN to the secondary LUN
• D.Synchronization refers to the process of copying data from the slave LUN to the master LUN

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Which of the following statements about N8500 CIFS sharing are correct? (Multiple choice)

• A.If you do not need to distinguish between users who restrict access to the shared directory, you can choose normal sharing
• B.In normal mode, the client can only access the share through a VIP
• C.If you do not need to distinguish between users who restrict access to the shared directory, you can choose homeedir sharing
• D.Compared with the normal mode, the cluster mode has higher data reliability, but lower performance

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An engineer needs to perform a snapshot rollback operation to obtain source data at a certain time in the past. Regarding this operation process, which of the following statements are correct? (Multiple choice)

• A.If the data is rolled back to the snapshot at time A, the snapshots created after time A will be deleted
• B.If the data is rolled back to the snapshot at time A, the snapshots created after time A will not be deleted
• C.Snapshot rollback is a full copy recovery of the source data at a certain point in time
• D.Snapshot rollback speed can reach the second level

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