When new build cloud data center,what aspects does the solution architecture design need to consider (Multiple choice)

• A.Virtualization software layer
• B.Infrastructure
• C.Cloud services layer
• D.L1 layer

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For the Swift project in FusionSphere OpenStack, which of the following are its features? (Multiple choice)

• A.High cost
• B.Large scale linear expansion
• C.Stateless access control node, handling massive user requests
• D.Data synchronization and access across multiple sites

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Under the Huawei FusionAccess DaaS scenario, the general requirements of the network logic isolation between the tenant to ensure security, to avoid attacks. Which of the following is a reasonable network isolation measure? (Multiple Choice)

• A.When multi-tenant sharing cluster resources, you can adopt VPN isolation or ACL isolation on the Layer 3 network in the data center.
• B.Each tenant enjoys a single cluster resource for physical network isolation.
• C.When multi-tenant sharing cluster resources, the virtualization layer network uses the VLAN- level isolated.
• D.Multi-tenant sharing cluster resources, for management considerations, the two-tier isolation and three-tier isolation do not need to be deployed at the same time.

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The alarm is displayed on the FusionStorage Block: "The storage pool is faulty and data is inaccessible in the storage pool." Which of the following are possible reasons? (Multiple choice)

• A.The hard disk or Cache of the last copy of the three copies of the data is unreadable.
• B.Storage network is abnormal
• C.Hard disk space is not enough
• D.Multiple hard disk failures in the storage pool in a short time

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In the FusionSphere private cloud solution, when a tenant manually triggers a cloud server backup task, which of the following components transfer Cinder to create a consistent snapshot on the production storage?

• A.eBackup Workflow
• B.Karbor
• C.eBackup Manager
• D.eBackup backup agent

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