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NEW QUESTION # 21
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. Changing the host storage vswitch address requires suspending the shared storage pool
- C. Modify the host service vswitch binding physical port can be modified directly on the CVM page
- D. To modify the host management vswitch name, you can directly modify it on the CVM page.
Answer: D
NEW QUESTION # 22
The encapsulation order of the ISCSI protocol packet is:
- A. ISCSI->SCSI->TCP->IP->Link
- B. ISCSI->SCSI->IP->TCP->Link
- C. SCSI->ISCSI->TCP->IP->Link
- D. Link->SCSI->ISCSI->TCP->IP
Answer: C
NEW QUESTION # 23
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. Open programmable interface
- B. Centralized network control
- C. Separation of control plane and forwarding plane
- D. Automated application control for network services
Answer: A,B,C
NEW QUESTION # 24
H3Cloud cloud computing solutions include?
- A. CAS cloud computing management platform
- B. UIS server
- C. UIS Network
- D. UIS storage
Answer: A,B,C,D
NEW QUESTION # 25
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. 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.
- D. Virtual machine migration includes changing the host, changing the storage, changing the host and storage
Answer: C
NEW QUESTION # 26
The following are the advantages of SSD hard drives over SATA hard drives:
- A. Good random read and write performance
- B. Large hard disk capacity
- C. Low noise during operation
- D. No mechanical moving parts inside, no fear of vibration
Answer: A,C,D
NEW QUESTION # 27
CAS virtualization software includes the following components:
- A. KVM
- B. K8S
- C. CVK
- D. CVM
Answer: C,D
NEW QUESTION # 28
Three ways to backup a virtual machine. After multiple backups, which of the following statements is correct?
- A. Incremental backup is the fastest
- B. Differential backup does not support CBT
- C. Full backup backs up the most data
- D. Differential backup The first backup is a full backup
Answer: A,B,C,D
NEW QUESTION # 29
Regarding the User Self-Service Platform (ssv), which of the following statements is correct?
- A. After the cloud host application electronic flow is approved, the system will automatically deploy the virtual machine
- B. After the user submits a cloud host application, he can directly obtain the right to use the virtual machine
- C. After the user submits a cloud host application, the organization administrator needs to approve the virtual machine electronic flow
- D. Organization administrators can deploy virtual machines using virtual machine templates and assign them to organization users
Answer: A,C,D
NEW QUESTION # 30
Which of the following are characteristics of cloud computing?
- A. Flexible Scheduling
- B. Services are quantifiable
- C. Network distribution
- D. Self-service
- E. Resource pooling
Answer: A,B,C,D,E
NEW QUESTION # 31
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. Full virtualization solution requires modification of guest OS
- D. 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.
Answer: A,B,D
NEW QUESTION # 32
Which of the following statements about virtual machine online migration is correct?
- A. When migrating a host online, the destination host's virtual machine will be suspended first, then the memory data of the original virtual machine will be copied, and finally the original virtual machine will be shut down, and the destination host's virtual machine will change from the suspended state to the running state.
- B. When migrating hosts and storage online, the virtual machine's memory data and image files are transmitted through the management network.
- C. When migrating hosts and storage online, the virtual machine's memory data is transmitted through the management network, while the image file is transmitted through the storage network.
- D. If the migration is not completed within the migration timeout period, the system will suspend the original virtual machine so that it can quickly complete the migration. After the migration is completed, the virtual machine will be restored to the running state.
Answer: A,B,D
NEW QUESTION # 33
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. The backing-file of the virtual machine disk has been deleted
- C. The virtual machine disk's backing-file has been moved to another directory
- D. Disk capacity is too small
Answer: B,C
NEW QUESTION # 34
Which of the following options are indicators of storage product performance:
- A. Maximum number of luns supported
- B. Bandwidth
- C. Maximum number of supported servers
- D. IOPS
Answer: B,D
NEW QUESTION # 35
Which of the following descriptions of virtual switches is correct?
- A. A virtual switch is a network platform that simulates the functions of a physical switch system through software.
- B. Virtual switches provide network connectivity between virtual machines and external networks
- C. The management virtual switch carries important messages such as management messages and virtual machine migration messages.
- D. It is recommended to create independent management, storage and business virtual machines and divide them into different VLANs
Answer: A,B,C,D
NEW QUESTION # 36
The following statement about modifying a virtual machine is correct:
- A. After the virtual machine is created, the display name cannot be modified.
- B. All types of virtual hard disks support online addition and expansion.
- C. After the virtual machine is created, you can add hard disks, network cards and other devices to the virtual machine
- D. You can set the virtual machine to start with the host, but this function becomes invalid after HA is enabled.
Answer: C,D
NEW QUESTION # 37
Which of the following statements about CAS logs is incorrect?
- A. The log file collection page does not support collecting log files for a single CVK host under cloud resources
- B. The operation log records the information of user operations and system background automatic operations, and can be downloaded to the local for analysis
- C. When cleaning up operation logs, only operation logs older than three months are allowed to be deleted
- D. 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.
Answer: A
NEW QUESTION # 38
Which of the following options are characteristics of RAID5:
- A. Generally speaking, RAID5 requires at least 3 hard disks.
- B. If N hard disks of the same specification are used as a RAID5, the actual available space is the space of N-1 hard disks.
- C. Checksum data is evenly distributed on all hard disks
- D. Dedicated hard disk to save verification data
Answer: A,B,C
NEW QUESTION # 39
Each SCSI channel has a maximum of () SCSI IDs and can connect a maximum of () storage devices:
- A. 16/15
- B. 17/16
- C. 15/14
- D. 14/13
Answer: A
NEW QUESTION # 40
Which of the following statements about alarm management is correct?
- A. When the virtual machine cannot connect, an alarm can be generated
- B. The alarm information records the alarm source, abnormality occurrence time, possible abnormality causes, recovery suggestions, etc.
- C. Administrators can manually record maintenance experience
- D. When a host goes down, the CVM console will record relevant information and generate an alarm
Answer: A,C,D
NEW QUESTION # 41
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