Which of the following dimensions can FusionSphere OpenStack evaluate the performance of the logical host fc-nova-compute, select the logical host with the best overall performance, and schedule cluster resources? (Multiple choice)

• A.vCPU remaining resources
• B.Remaining memory resources
• C.vCPU utilization
• D.vCPU reservation rate

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The operation administrator role in the Manageone operation plane has the resource pool configuration and tenant management permissions, but cannot apply for cloud resources; the VDC administrator role can manage users, projects, and sub-VDC in the VDC, and can also apply for cloud resources.

• A.False
• B.True

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When using rainbow migration, what are the reasons for failure (multiple choice)

• A.Old business system
• B.operating system
• C.Network environment
• D.Source and target platform

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Which of the following descriptions about FusionCompute storage live migration is incorrect?

• A.Storage live migration can be performed within the same storage device under storage virtualization management and between different storage devices.
• B.Support the migration of non-persistent disks.
• C.Migration of mounted "shared" type disks and disks of linked-clone virtual machines is not supported.
• D.Supports live migration of virtual machine disks without affecting user usage, enabling planned storage maintenance and storage migration without business interruption.

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Regarding the HA configuration of the FusionCompute virtual machine, which of the following descriptions are correct? (Multiple choice)

• A.The host fault handling policy is set to class virtual machine. When the host where the virtual machine is located fails, the system will re-select the host to start the virtual machine according to the virtual machine startup policy set in the cluster.
• B.The delay policy is configured. During the delay time, 1/0 of the virtual machine will be retransmitted in the backend driver.
• C.The host failure handling policy is set to restore the virtual machine on the original host. When the host where the virtual machine is located fails, the system will restart the virtual machine on the original host only after the host has recovered.
• D.The data storage failure processing policy is set to not process, if the data storage failure time exceeds the time set by "policy delay". The virtual machine will automatically shut down to avoid data corruption.

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