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最新のH3C GB0-713-ENUリアル試験問題集PDF
質問 # 30
Which of the following errors regarding virtual machine migration is
- A. When the virtual machine only changes the host, the destination host must be able to access the image file of the virtual machine
- B. Virtual machine migration refers to manually migrating a virtual machine to a different host and data storage, supporting offline migration and online migration
- C. Virtual machine migration includes changing the host, changing the storage, changing the host and storage
- D. Changing the host and storage means migrating the virtual machine to another host and migrating the virtual machine image file to other storage on the host. Only offline migration is supported.
正解：D
質問 # 31
Which of the following statements about configuring a virtual switch is incorrect?
- A. When adding a virtual switch, you must bind a physical interface, and when binding multiple physical interfaces, you must configure link aggregation mode and load sharing mode.
- B. The virtual machine uses the vNet0 port of the virtual switch, and the port is configured with VLAN100. Then the physical switch port connected to the virtual switch must allow VLAN100 to pass through, otherwise the virtual machine network will be unavailable.
- C. The storage virtual switch must be configured with a P address, otherwise the CVK host cannot mount the iP SAN storage through the storage virtual switch.
- D. The uplink port of the virtual switch allows all VLANs to pass
正解：A
質問 # 32
Which statement about multipathing is correct?
- A. If there is no multipath software, one LUN will be recognized as multiple LUNs on the host side.
- B. If the host has two HBA ports, the storage side has two controllers, and each controller has two HBA ports, then the host side can discover a total of 4 storage paths
- C. The main function of multipath is to improve reliability and achieve load balancing, but it cannot increase link bandwidth.
- D. Multipathing can be implemented in two modes: Active-Active mode and Active-Passive mode.
正解：A、B、D
質問 # 33
Which of the following statements about CVM management functions is correct?
- A. Host auto-discovery task management automatically searches for hosts that can be added and adds them to the cluster to which the task belongs.
- B. The operation log records in detail all operations performed by operators on the CVM and provides a download function
- C. The virtual machine view management function allows maintenance personnel to customize the virtual machine directory based on actual business scenarios
- D. Cloud services are based on the virtualization function provided by CVM components, abstracting physical resources such as computing, storage, and network into elastic virtual resource pools that are provided on demand.
正解：A、B、C、D
質問 # 34
Which of the following statements about CAS logs is incorrect?
- A. When cleaning up operation logs, only operation logs older than three months are allowed to be deleted
- B. The log file collection page does not support collecting log files for a single CVK host under cloud resources
- C. When the CVM host is abnormal, you can execute the "cas_collect_log_sh" command in the CVK host background to collect the log files of the CVK host.
- D. The operation log records the information of user operations and system background automatic operations, and can be downloaded to the local for analysis
正解：B
質問 # 35
Which of the following statements about cluster HA is incorrect?
- A. After HA is enabled, when a host in the cluster fails, the system can select an idle server and restart the VM on the failed host on the idle server
- B. The cluster enables HA, which can ensure business continuity even when both the server and the shared file system fail.
- C. Hosts that implement HA in the cluster need to mount the same shared storage
- D. Shared storage is required to implement HA
正解：B
質問 # 36
Which statement about CAS log is correct?
- A. /var/log/ocfs_fence_restart.log records the information of the CVK host restart triggered by ocfs2 ? Fence
- B. /var/log/message log records the error log of CVK host system operation
- C. /var/log/operation log records the command information executed in the cvk background
- D. /var/log/libvirt/qemu stores the log files of the virtual machines running on this CVK host
正解：C、D
質問 # 37
The virtual machine backup reported an error. The reason cannot be:
- A. The time set by the backup policy has been exceeded
- B. Insufficient storage resources in the virtual machine backup temporary directory
- C. Virtual machine backup priority is too low
- D. Insufficient storage resources in the path of the virtual machine backup directory
正解：C
質問 # 38
Which of the following is correct about the common maintenance commands of CAS?
- A. virsh list can view all running virtual machines on the host.
- B. qemu-img info command can view virtual machine disk information
- C. After executing the service apache restart command, all tasks running in the foreground will be interrupted.
- D. virsh pool-list -all can view the storage information mounted on this cvk host.
正解：A、D
質問 # 39
The following description of H3CCAS cloud resources is correct:
- A. Cloud resources mainly include computing resources, storage resources and network resources
- B. Cloud resource management mainly includes host pool management, cluster management, host management, virtual machine management, virtual machine template management, policy management, storage management and network management
- C. Hosts can be added directly to a host pool or to a cluster
- D. You can directly create a cluster under cloud resources and add hosts to the cluster
正解：A、B、C
質問 # 40
H3CCAS manages resources through a clear organizational hierarchical view.
Which of the following statements about clusters in the hierarchical structure is incorrect?
- A. Only hosts added on the cluster page can implement HA
- B. Hosts can be added directly on the cloud resource page
- C. Hosts in the cluster can implement dynamic resource adjustment
- D. A host pool can contain multiple clusters
正解：B
質問 # 41
SDN is the abbreviation of Software Defined Network. SDN is not a specific technology. It is a network design concept that plans the interaction between the various components of the network (software, hardware and software). Its characteristic attributes include:
- A. Separation of control plane and forwarding plane
- B. Centralized network control
- C. Automated application control for network services
- D. Open programmable interface
正解：A、B、D
質問 # 42
The motherboard chipset determines the following parameters:
- A. Type and quantity of extension interfaces
- B. Motherboard bus frequency
- C. Type and quantity of expansion slots
- D. Supported CPU types
正解：A、B、C、D
質問 # 43
Which of the following statements about cloud service processes is incorrect?
- A. Organization users can only be created by administrators
- B. Organization administrators can publish cloud messages for the organization users they manage.
- C. The cloud host with the cloud disk loaded cannot be logged out. You need to uninstall the cloud disk first.
- D. Users can apply for an empty virtual machine in a customized way and use a virtual CD-ROM to install the virtual machine operating system
正解：A、D
質問 # 44
The following modification of virtual switch port information is incorrect.
- A. To modify the host management vswitch address, you need to delete the host from the CVM page.
- B. To modify the host management vswitch name, you can directly modify it on the CVM page.
- C. Modify the host service vswitch binding physical port can be modified directly on the CVM page
- D. Changing the host storage vswitch address requires suspending the shared storage pool
正解：B
質問 # 45
Which of the following statements about storage thin volumes is correct?
- A. When using thin volumes, the disk usage on the host side may be less than the capacity usage on the storage side.
- B. Thin volumes allow storage over-allocation
- C. When thin volumes are mirrored, cloned, or replicated between storages, only the data actually used needs to be synchronized, saving CPU, disk, and bandwidth overhead
- D. For critical businesses, it is recommended to use thick provisioned storage volumes to ensure the occupation of storage resources.
正解：A、B、C、D
質問 # 46
Which of the following statements about virtual devices of virtual machines is correct?
- A. The "custom" working mode of the virtual CPU can provide the best migration compatibility and best performance for the virtual machine.
- B. When the virtual machine uses a "virtio hard disk" or a "virtio" network card, it is not necessary to install the virtio device driver
- C. The virtual CPU of the virtual machine uses physical CPU resources through time slice polling
- D. Compared with "normal network card", "virtio network card" has better performance. It is recommended to use "virtio network card"
正解：C、D
質問 # 47
The following statements about link aggregation are correct:
- A. In an aggregation group, even if a member port has different attribute configurations and protocol configurations from the corresponding aggregation interface, it will not affect the member port from becoming the selected port.
- B. In the same aggregation group, all selected ports do not necessarily need to have the same operation key
- C. Link aggregation can provide link redundancy and increase link bandwidth.
- D. The aggregation group and the aggregation interface have the same number.
正解：C、D
質問 # 48
Which of the following statements about CAS software version upgrade is correct?
- A. Before upgrading the CAS software version, you need to back up your business data.
- B. As long as you perform the upgrade operation on the CVM host, you can also complete the upgrade operation of the CVK host managed by the CVM host.
- C. If you do not clear the browser cache after the upgrade, CAS page access exceptions may occur
- D. When upgrading services, it is recommended to shut down the VM normally from within the VM and suspend the shared storage pool.
正解：A、B、C、D
質問 # 49
Which of the following descriptions of the life cycle of a virtual machine is correct?
- A. After a virtual machine is moved to the recycle bin, it can be manually restored within the storage period. If the storage period exceeds the limit, it will be automatically deleted.
- B. When the virtual machine is working normally, performing a power off operation may cause the virtual machine operating system and application data to be lost, so it should be used with caution.
- C. The virtual machine does not have CAS Tools installed, and the virtual machine may not be shut down when the shutdown operation is performed.
- D. During the normal operation of the virtual machine, if the storage pool where the image file is located is full, the virtual machine will become suspended
正解：A、B、C、D
質問 # 50
When the virtual machine is started, it prompts that the disk does not exist, but it exists in the CAS front-end interface and the disk capacity is also displayed. What may be the reason?
- A. There is a problem with the front-end interface display
- B. Disk capacity is too small
- C. The virtual machine disk's backing-file has been moved to another directory
- D. The backing-file of the virtual machine disk has been deleted
正解：C、D
質問 # 51
Which of the following statements about virtual machine cloning is incorrect?
- A. Virtual machine cloning methods include normal cloning, fast cloning and full cloning.
- B. The cloned virtual machine has the same operating system, application system and data as the original virtual machine, and the MAC address of the virtual network card is also the same.
- C. The default IP address acquisition method for the cloned virtual machine is DHCP, so there will be no address conflict problem
- D. Cloning is only allowed within the same CVK host
正解：B、C、D
質問 # 52
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