In the overall deployment box of the OpenStack single-machine room module, the number of the following components is correct:
(Multiple choice)

• A.The relationship between Fabric and Spine/Leaf is 1;1
• B.The relationship between gateway group and gateway switch is 1; N
• C.AC and Fabric are 1; the relationship between N
• D.The relationship between AC and OpenStack is 1; N

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In the HUAWEI cloud computing environment, which is the correct description of the software load balancer?

• A.Deploy HAProxy load balancing software in the virtual machine
• B.Flexible deployment, convenient management, no additional hardware costs
• C.All the above statements are correct
• D.The performance is limited, not suitable for large-scale throughput, you can use the HA of the virtual machine to achieve your own high availability

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Virtual machine desktops using GPU pass-through technology will lose features such as hot migration and HA.

• A.False
• B.True

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Regarding the branch desktop cloud scenario, which of the following description is incorrect?

• A.The network between the branch and the headquarters is only used for the transmission of management data, which requires low network bandwidth.
• B.Branch business resources are deployed locally, and remote desktop traffic of virtual machines is also restricted locally.
• C.If the headquarters data center fails or the network with the branch is interrupted, local users in the branch cannot access the local virtual desktops.
• D.Deploy a centralized operation and maintenance management system in the headquarters to centralize the operation, maintenance and management of desktop cloud services in the headquarters and various branches.

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An existing virtual machine needs to deploy a certain business. The business IO is all random small IO. The IOPS requirements are relatively high. Which type of disk is recommended for the virtual machine?

• A.Ordinary delayed zero disk
• B.Thin disk
• C.Differential volume
• D.Ordinary Disk

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