In the hyper-converged architecture database scenario, if the rack-shaped network is adopted, which of the following statements is wrong?

• A.The service plane network is directly connected from the DBN server to the customer service switch, and the management plane network uses GE switches, and provides unified management upstream.
• B.When the size is greater than 1 cabinet (each 16 units 2U server deployment 1 when racks), each rack arranged 3 sets IB switch, wherein two sets of IB switch as a leaf switch is connected in this old network server rack port, another one station IB the switch is used as the backbone switch to connect to the leaf switches of other cabinets.
• C.In the database scenario, the storage plane must use the old network, and the business plane must use the 10GE network.
• D.The default configuration of the DBN node business network is 6*10GE network card, the management node and storage node do not need 10GE network card, use 2*GE network card for management.

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The computing system is based on a new generation of intelligent servers, combined with management, acceleration, heterogeneous, AI and other series of chips, integrated into the cloud, edge, and end of the full-stack full-scenario intelligent solution system. Which of the following statements about computing system are wrong? (Multiple choice)

• A.The computing system is built on the underlying hardware. Common forms of servers include mainframes, minicomputers, towers, blades, racks, etc.
• B.Minicomputers, medium-sized computers, and mainframes operate in the "host terminal" mode, and most of them use the UNIX operating system.
• C.Computer software can be divided into application software at the bottom, system software at the top, and middleware between the two.
• D.Common X86 architecture servers emerged from minicomputers, which belong to the CISC complex instruction set.

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ASIC is another new type of chip after CPU, GPU and other general-purpose chips. Which of the following is the wrong understanding of ASIC chip?

• A.ASIC refers to an integrated circuit designed and manufactured for specific user requirements and specific electronic system needs.
• B.The biggest advantage of ASIC chips lies in the fact that the algorithm can be modified according to customer requirements to meet business needs during the use of the chip (the algorithm is fixed and may not be used once it is modified).
• C.The current mainstream ASIC manufacturers include Huawei, Google, Cambrian, etc.
• D.Compared with general integrated circuit ASC, it has the advantages of smaller size and lower power consumption.

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Which of the following statements are correct about the key indicators affecting the performance of the hard disk? (Multiple choice)

• A.The factors that affect the capacity of the hard disk are the capacity of a single disc and the number of discs.
• B.The average access time of a mechanical hard disk refers to the average addressing time of the disk.
• C.For applications with frequent random reads and writes, such as OLTP services, IOPS is a key measurement indicator. Another important indicator is data throughput, which refers to the amount of data that can be successfully transmitted per unit time.
• D.The data transfer rate of the hard disk refers to the speed of reading and writing data of the hard disk, in megabytes per second MB/s

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Which of the following statements about the docking feature of Huawei's hyper-converged management eService and the Plugin plug-in is correct?

• A.vCenter Plugin provides monitoring and management of the hardware and storage device resources of the Huawei HCI system. The system reports alarms but does not support the creation of management volume devices and virtual machine snapshots.
• B.HUAWEI hyper-converged integrated management and eService only supports sending alarms to the GTAC center (eService cloud), remote log collection, and does not support remote health checks, etc.
• C.Huawei Service Support Center supports drop-down selection (4) and manual entry (@Huawei.com mailbox). The mailbox server provided by the customer can communicate with Huawei's mailbox.
• D.Customers can monitor and manage Huawei's hyper-converged system through the vCenter server to achieve unified management of the system on the vCenter interface. Only one set of HCI system access is supported.

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