The SmartQoS technology of Huawei OceanStor all-flash storage supports the creation of tenant-level QoS control and file system QoS control. Both the two controls can take effect at the same time, forming a two-level QoS control.

• A.False
• B.True

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A disaster recovery project adopts Huawei's full-space snapshot solution at the network layer. A snapshot of the source volume will be created at 9:00, and the snapshot will be created at 9:10. During this process, the source volume has a write operation. Which of the following statements are correct?

• A.The data content of the snapshot volume is the same as the data content of the source volume at 9:00.
• B.The data content of the snapshot volume is the same as the data content of the source volume at 9:10.
• C.The data content of the snapshot volume is the incremental data of the source volume between 9:00 and 3:10.
• D.The snapshot volume is a physical copy of the source volume at 9:00.

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After purchasing Huawei's all-flash storage devices, which of the following options must be planned when planning the basic storage business? (Multiple choice)

• A.Number of LUNs
• B.Storage pool capacity
• C.LUN capacity
• D.Disk domain

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A company purchases two sets of Huawei's scale-out file storage, which are deployed in the production data center and the disaster recovery data center respectively. The storage administrator needs to create a replication zone channel between the two storage systems. Which of the following option descriptions is correct?

• A.Only one replication zone channel is allowed to be created between two storage system clusters
• B.The authentication and flow control of the remote replication communication link are completed through different channels
• C.The replication zone channel is a set of communication links established in the same replication zone of the master and slave storage systems
• D.The remote replication pair between the two clusters will correspond to their respective replication zone channels

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Which of the following options is not a challenge for big data analysis?

• A.Massive data puts forward higher requirements for fast, efficient and real-time data analysis
• B.Traditional IT architecture cannot provide enough storage space for the rapidly increasing amount of data
• C.The high-capacity requirements that need to have a one-stop solution
• D.Traditional analysis methods are not suitable for the analysis of big data types

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