Which of the following statements about data backup policies are true? (Multiple Choice)

• A.In the same scenario, synthetic backup outperforms incremental backup in terms of restoration time.
• B.Each backup needs a full backup as the basis.
• C.Differential incremental backup is used to back up data changes made between two backups.
• D.Differential incremental backup minimizes the use of backup space.

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In the Huawei dual-active disaster recovery solution, the peak write bandwidth of an application needs 10MB/s, the average write bandwidth needs 200KB/s, the average write I/O volume is 4KB, and the bandwidth utilization rate is 70%. Then the application deploys asynchronous remote replication. What is the bandwidth required?

• A.10MB/s
• B.200KB/s
• C.114.3Mbit/s
• D.2.23MB/s

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Internet company A uses Huawei's hyper-converged infrastructure to build the company's information platform, which greatly facilitates operation and maintenance management. Which of the following options reflects this characteristic? (Multiple choice)

• A.One-click operation and maintenance
• B.Integrated management of hardware, software, and resources
• C.Factory pre-integrated
• D.Single node high performance

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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.Split refers to the suspension of data synchronization from the primary LUN to the secondary LUN
• C.Pair refers to the data replication relationship between the master LUN and the slave LUN
• D.Synchronization refers to the process of copying data from the slave LUN to the master LUN

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What are the necessary components included in the architecture of the N80OONAS system? (Multiple choice)

• A.NAS engine
• B.FC switch
• C.Disk array
• D.Data sharing network equipment

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