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NEW QUESTION # 41
Which of the following statements about virtual machine templates is correct?
- A. A virtual machine template is a copy of a virtual machine that is used to easily create and configure multiple new virtual machines.
- B. Make sure the CD-ROM drive is disconnected before creating the template
- C. There are two ways to create a virtual machine template: converting to a template and cloning. Cloning to a template must be done when the virtual machine is shut down.
- D. The number of CPUs, memory size, and capacity in the virtual machine template cannot be modified
Answer: A,B
NEW QUESTION # 42
The following statements about x86 architecture virtualization are correct:
- A. The original x86 architecture was not suitable for virtualization because sensitive non-privileged instructions could not be captured by the VMM
- B. Hardware-assisted virtualization solution introduces VMCS (virtual-machine control structure), which stores the relevant status information of the virtual CPU
- C. In the paravirtualization solution, the hypervisor provides a hypercall interface to meet the key kernel operations of the guest OS, such as memory management, interrupt time synchronization, etc.
- D. Full virtualization solution requires modification of guest OS
Answer: A,B,C
NEW QUESTION # 43
The encapsulation order of the ISCSI protocol packet is:
- A. ISCSI->SCSI->TCP->IP->Link
- B. SCSI->ISCSI->TCP->IP->Link
- C. Link->SCSI->ISCSI->TCP->IP
- D. ISCSI->SCSI->IP->TCP->Link
Answer: B
NEW QUESTION # 44
Which statement about CAS log is correct?
- A. /var/log/operation log records the command information executed in the cvk background
- B. /var/log/libvirt/qemu stores the log files of the virtual machines running on this CVK host
- C. /var/log/message log records the error log of CVK host system operation
- D. /var/log/ocfs_fence_restart.log records the information of the CVK host restart triggered by ocfs2 ? Fence
Answer: A,B
NEW QUESTION # 45
Which of the following statements about virtual devices of virtual machines is correct?
- A. The virtual CPU of the virtual machine uses physical CPU resources through time slice polling
- B. The "custom" working mode of the virtual CPU can provide the best migration compatibility and best performance for the virtual machine.
- C. Compared with "normal network card", "virtio network card" has better performance. It is recommended to use "virtio network card"
- D. When the virtual machine uses a "virtio hard disk" or a "virtio" network card, it is not necessary to install the virtio device driver
Answer: A,C
NEW QUESTION # 46
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
Answer: A,B,C
NEW QUESTION # 47
Which of the following statements about virtual machine cloning is incorrect?
- A. Cloning is only allowed within the same CVK host
- B. The default IP address acquisition method for the cloned virtual machine is DHCP, so there will be no address conflict problem
- C. Virtual machine cloning methods include normal cloning, fast cloning and full cloning.
- D. 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.
Answer: A,B,D
NEW QUESTION # 48
Servers are classified into the following categories according to their processor architecture:
- A. I A-64 Server
- B. X86 server
- C. RISC architecture server
- D. Blade Server
Answer: A,B,C
NEW QUESTION # 49
The virtual machine backup reported an error. The reason cannot be:
- A. Virtual machine backup priority is too low
- B. Insufficient storage resources in the virtual machine backup temporary directory
- C. Insufficient storage resources in the path of the virtual machine backup directory
- D. The time set by the backup policy has been exceeded
Answer: A
NEW QUESTION # 50
Which of the following descriptions about virtual machines is correct?
- A. The system time of the CVK host where the virtual machine is located will not be synchronized during the virtual startup process
- B. The virtual machine mainly includes configuration files and image files
- C. A virtual machine is a complete system running on a physical server. It contains its own virtual CPU, memory, disk, network card and other virtual hard disk resources.
- D. The virtual machine configuration file defines the virtual hardware information of the virtual machine
Answer: B,C,D
NEW QUESTION # 51
Which of the following statements about CAS cloud resources is incorrect?
- A. The shared file system is implemented in clusters
- B. HA function is implemented in clusters
- C. The host can add multiple shared file system storage pools
- D. A physical server is a host on the CAS platform
Answer: A
NEW QUESTION # 52
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. Disk capacity is too small
- B. There is a problem with the front-end interface display
- 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
Answer: C,D
NEW QUESTION # 53
Which of the following statements about alarm management is correct?
- A. Administrators can manually record maintenance experience
- B. When a host goes down, the CVM console will record relevant information and generate an alarm
- C. The alarm information records the alarm source, abnormality occurrence time, possible abnormality causes, recovery suggestions, etc.
- D. When the virtual machine cannot connect, an alarm can be generated
Answer: A,B,D
NEW QUESTION # 54
Which of the following statements about virtual machine mounting storage is correct?
- A. The virtual machine can mount the storage volume on the CVK as a block device
- B. The virtual machine can directly access physical storage mounts through the network
- C. Multiple virtual machines can mount the same disk file
- D. You can create a new file in the CVK mounted storage pool and mount it to the virtual machine for use
Answer: A,B,C,D
NEW QUESTION # 55
Regarding CVM hot standby, which of the following statements is correct?
- A. CVM hot standby arbitration only supports the simple Ping method, not the advanced arbitration method
- B. Access the CAS management platform through a virtual IP
- C. The CAS versions of the active and standby CVMs can be inconsistent
- D. The primary CVM only synchronizes the data under the /vms path to the backup CVM in real time
Answer: B,D
NEW QUESTION # 56
Regarding storage pools, the following statements are incorrect:
- A. A shared file system can be mounted by multiple servers
- B. NFS network file system can be accessed by multiple servers
- C. There is no limit on the number of hosts that can mount the same shared file system
- D. ISCSI network storage can be assigned to virtual machines after being mounted on the host
Answer: C
NEW QUESTION # 57
Which of the following descriptions about virtual machine high availability HA is correct?
- A. After the cluster enables the HA function, all hosts in the cluster are required to mount the system shared storage
- B. HA functionality provides easy-to-use, cost-effective availability for applications running on all virtual machines in a cluster.
- C. After the cluster enables HA, all virtual machines in the cluster have HA enabled, and the HA function of a single virtual machine cannot be disabled.
- D. After enabling the HA function, CVM will continuously monitor the operation of all server hosts and virtual machines in the cluster. When a host or virtual machine fails, CVM will immediately respond and restart all affected virtual machines on other available hosts in the cluster.
Answer: A,B,D
NEW QUESTION # 58
CAS virtualization software includes the following components:
- A. CVM
- B. K8S
- C. CVK
- D. KVM
Answer: A,C
NEW QUESTION # 59
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
Answer: B
NEW QUESTION # 60
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.
Answer: A,B,C,D
NEW QUESTION # 61
Which of the following statements about CAS characteristics is correct:
- A. When a server fails, DRS can automatically select a space server and restart the VM on an idle server.
- B. HA takes into account the virtual machine CPU, memory, I/O throughput load factors and the virtual machine's affinity to the physical host to dynamically adjust the distribution of business loads and improve system availability.
- C. DRX takes into account the virtual machine CPU, memory, I/O throughput load factors and the virtual machine's affinity to the physical host to dynamically adjust the distribution of business loads and improve system availability.
- D. V2V supports converting virtual machines in various formats such as VMware, Citrix, KVM, etc. into H3CCAS virtual machines
Answer: D
NEW QUESTION # 62
Which of the following descriptions about virtual machine high availability (HA) is correct?
- A. After the cluster enables the HA function, all hosts in the cluster are required to mount the system shared storage
- B. HA functionality provides easy-to-use, cost-effective high availability for applications running on all virtual machines in the cluster.
- C. After the HA function is enabled, CVM will continuously monitor the operating status of all server hosts and virtual machines in the cluster. When a host or virtual machine fails, CVM will immediately respond and start all affected virtual machines on other available hosts in the cluster.
- D. After the cluster enables the HA function, all virtual machines in the cluster have HA turned on, and the HA function of a single virtual machine cannot be turned off.
Answer: A,B,C
NEW QUESTION # 63
The following statements about CAS characteristics are correct:
- A. DRX comprehensively considers load factors such as the virtual machine's CPU, memory, I/O throughput, and the virtual machine's affinity to the physical host, dynamically adjusts the business-responsible division, and improves system availability.
- B. When a server fails, DRS can automatically select an idle server and restart the VM on the idle server.
- C. V2V supports converting virtual machines in various formats such as vmware, citrix, kvm, etc. into H3CCAS virtual machines
- D. HA comprehensively considers load factors such as virtual machine CPU, memory, I/O throughput, and the affinity of the virtual machine to the physical host, dynamically adjusts the business-responsible division, and improves system availability.
Answer: C
NEW QUESTION # 64
Which of the following errors regarding virtual machine migration is
- A. Virtual machine migration includes changing the host, changing the storage, changing the host and storage
- B. 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.
- C. When the virtual machine only changes the host, the destination host must be able to access the image file of the virtual machine
- D. Virtual machine migration refers to manually migrating a virtual machine to a different host and data storage, supporting offline migration and online migration
Answer: B
NEW QUESTION # 65
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