HCIA-Cloud Computing V4.0 H13-511_V4.0 Training Material [2022] For Your Best Preparation

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1. What does setting the port group VLAN ID to 10 mean in Huawei FusionComputer? (Multiple choice)

Detagging the data frames with VLAN10 tags through the port group and forwarding them

Re-label the data frame with VLAN10 tag to VLAN ID and forward it after passing through the port group

Discard data frames with non-VLAN10 tags passing through the port group

The data frame with no VLAN tag passing through the port group is tagged with VLAN10 and then forwarded.

2. Which of the following are computing virtualization? (Multiple choice)

Disk Virtualization

Memory Virtualization

CPU Virtualization

I/O Virtualization

Network Virtualization

3. Which of the following descriptions about hard disk usage scenarios are correct? (Multiple choice)

SATA type hard disks are generally not used to provide services, but are used in data backup scenarios in enterprises

SAS type hard disks are generally used in application scenarios where ordinary services are provided online without special requirements for high concurrency

SSDs are generally used in online business scenarios with small concurrent capacity

NL-SAS hard disks are generally used in data archiving and backup scenarios

4. What does virtual NUMA include? (Multiple choice)

Topology presentation: NUMA is recognized inside the virtual machine, so that the Guest OS and application NUMA optimization function take effect

Initial placement: According to the NUMA topology of the virtual machine, select the physical Node to place the VCPU and memory, so that the relationship between the vCPU and the memory in the Vnode is consistent with the physical reality

Dynamic migration: When the affinity between Vcpu and physical Node changes, trigger its corresponding Node memory to migrate

Load balancing: Consider node association and the corresponding relationship between Node and physical Node in the scheduling process to ensure that Vcpu accesses local memory to the greatest extent possible

5. We can use mobile phones, computers, and smart terminals to listen to cloud music at any time where there is a network, which reflects the ( ) characteristics of cloud computing.

Broad Internet Access

6. In Huawei Fusion Computer, if the Windows VM experiences a blue screen, what operations can the system perform? (Multiple choice)

HA virtual machine

Restoring the virtual machine using the snapshot

Restart the virtual machine

not deal with

7. Which of the following descriptions about the virtual machine disk bus types in Fusion Computer are correct? (Multiple choice)

Disks created on raw device-mapped datastores can only be mounted on VIRTIo or SCSI buses

Disks created on non-raw device mapped datastores can be mounted on VIRTIo, IDE, SCSI buses

When using the SCSI disk bus type, you need to set the SCSI command execution mode of the disk

Under the x86 architecture, the Windows operating system can directly support the VIRTIO bus without installing drivers

8. With the development of A technology, almost all technologies now involve artificial intelligence. Which of the following is the current application field of A? (Multiple choice)

Appease the robot

Voice recognition

Image recognition

NLP （ neuro-linguistic Programing ）

9. ( ) is the core component of FusiorCompute. It mainly provides virtualization functions. It is usually deployed in a cluster, and virtualizes the computing, storage, and network resources in the cluster into a resource pool for users to use.

CNA

10. There are two types of virtual switches. FusionlCompute uses ( ), which can be distributed on different physical hosts and configured uniformly through virtualization management tools.

dvs

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11. Memory multiplexing will use multiple memory multiplexing technologies to time-division multiplexing memory, and its memory reuse rate is recommended to be controlled within ( )%.

150

12. Which of the following descriptions about the VIIS file system is correct? (Multiple choice)

VINS is a high-performance cluster file system

VIS can enable multiple computing nodes to access the clustered storage pool at the same time

VIIs is a cluster file system based on NAS storage

VIIS uses a distributed lock mechanism to ensure the consistency of data read and write in the cluster

13. Which of the following are disk formats for virtual machines? (Multiple choice)

VHD

QCOW

ISO

RAW

14. Virtualization has the characteristics of independence and isolation, in which virtual resources are divided into blocks and allocated to each virtual machine for use. It reflects the ( ) characteristics of virtualization.

Partition

15. Which of the following can realize computer virtualization in the cloud computing 1.0 era and improve resource utilization? (Multiple choice)

KVM

Xen

Hyper-v

Open Stack

16. Which of the following descriptions about hot adding of virtual machine resources are correct? (Multiple choice)

As long as the virtual machine itself supports the hot add function, no operating system support of the virtual machine is required

The essence of virtual machine hot add is to modify the hardware configuration of the virtual machine by modifying the corresponding parameters in the configuration file to improve the user experience

The addition of storage resources can not only expand the existing disk, but also support adding different disks to the virtual machine

Hot add refers to adding computing, storage and network resources to a virtual machine while the virtual machine is powered

17. In FusionCompute, the CNA host and the VRM use the ( ) mechanism to ensure that the VRM can effectively sense whether the CNA node is abnormal.

Heartbeat

18. What does setting the VLAN ID to 10 represent when creating a port group in Fusion Computer? (Multiple choice)

De-tag the data packets with VLAN10 tags in this port group and forward them

Label the packets with VLAN 10 after passing through this port group without VLAN tags and forward them

Discard packets with non-VLAN10 tags passing through this port group

Change the label to VLAN10 and forward the data packets with non-VLAN10 tags through this port group

19. In FusionCompute, there are two types of virtual machine template formats: ova and ovf. The template in ovf format consists of an ovf description file and several ( ) disk files. (Please fill in the file format)

VHD

20. Which of the following descriptions about the role of VRM components in Fusion Computer are wrong? (Multiple choice)

Provide device emulation capabilities for virtual machines on nodes

Manage dynamic adjustment of resources within the cluster

Manage block storage resources within the cluster

Provide virtual computing functions

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21. Which of the following descriptions about KVM is correct? (Multiple choice)

KVM is an open source virtualization technology

KVM belongs to type II virtualization

KVM belongs to type I virtualization

KVM is a module in the Linux kernel

22. Which of the following statements about virtualization is incorrect? (Multiple choice)

Network virtualization refers to distributed virtual switches

Storage virtualization refers to distributed storage

In cloud computing, IaaS layer virtualization can be divided into computing virtualization, storage virtualization and network virtualization

Computing virtualization includes CPU virtualization, memory virtualization and I/O virtualization

23. Which statement is true about VNC? (Multiple choice)

VNC needs to support Linux operating system

The controlled computer needs to install the corresponding software to become a VNC server

VNC is a lightweight remote control software

The host that initiates the control request needs to install the corresponding software to become the VNC server

24. Which of the following descriptions illustrate the benefits of virtualization? (Multiple choice)

After using virtualization, the CPU utilization of a physical host can be stabilized at about 65%

After using virtualization, multiple virtual machines can run on one physical host at the same time

After using virtualization, multiple applications can run simultaneously on the operating system of a physical host

After using virtualization, virtual machines can be migrated between multiple hosts

25. Which of the following are the virtual switching modes provided by Huawei VMs? (Multiple choice)

Normal mode

SR-IOV pass-through mode

DPDK mode

User Mode Exchange Mode

26. Which of the following descriptions about Fusion Computer virtual machine disk expansion is wrong? (Multiple choice)

When the disk mode is "independent-non-persistent", it supports online increase of disk capacity

Disk expansion is not supported when the disk is a shared disk

When the data storage type to which the disk belongs is virtualized SAN storage, disk expansion is not supported

The virtual machine template does not support disk expansion

27. Which of the following are north-south traffic? (Multiple choice)

Traffic between virtual machines in the data center accessing each other

Traffic generated by customers accessing the data center through the Internet

Traffic between virtual machines accessing each other across data centers

Traffic generated by live migration of virtual machines

28. Which of the following statements about the relationship between virtual machines and cloud computing are correct? (Multiple choice)

Virtualization is a technology, computing is a service model, and virtualization promotes the development of cloud computing

Virtualization is one of the important technologies for realizing cloud computing

Without virtualization, cloud computing has no value

Without cloud computing, virtualization has no value

29. In Huawei Fusion Computer, after the automatic computing resource scheduling function is enabled, what are the possible reasons for the migration of virtual machines? (Multiple choice)

The windows virtual machine has a blue screen and the processing policy is "HA virtual machine"

The application running on the virtual machine crashes

The administrator manually migrates according to the system prompt

The system automatically migrates according to the scheduling policy

30. Which of the following statements about KVM and Xen are correct? (Multiple choice)

Xen virtual machines can be converted into KWM virtual machines

Domain0 and Domain U are concepts in KVM

Both KVM and Xen are open source hypervisors

KWM and Xen can run on the same Host OS

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31. Which of the following descriptions about centralized storage is wrong? (Multiple choice)

The difference between IP-SAN and FC-SAN lies in the transmission protocol and transmission medium

NAS is a high-speed storage dedicated network that is independent of the business network system and uses block-level data as its basic access unit.

CIFS is generally used for file sharing of Unix and Linux systems; NFS is generally used for file sharing of Windows systems

SAN is a technology that integrates distributed and independent data into a large-scale, centrally managed data center for easy access by different hosts and application servers

32. If virtual machine A and virtual machine B run on different servers, which physical device must be used in the communication process? (Multiple choice)

Physical switch

Physical NIC

Virtual Switch

Virtual NIC

33. In the server of RISC instruction set architecture, the ( ) instruction is a special instruction of virtualization, which refers to the instruction that deprives the privileged instruction in the Guest 0S that originally needs to be run in Ring0 mode, and then gives it to the VMM for execution.

Sensitive

34. Which of the following descriptions about Virt-manager is correct? (Multiple choice)

Virt-manager is a KM virtual machine management command set

Virt-manager is an open source KM virtual machine management tool

Virt-manager is a commercial KM virtual machine management tool

Virt-manager is a KM virtual machine graphical management tool

35. Which of the following descriptions are correct in KWM type virtualization? (Multiple choice)

Guest OS can be Windows

Guest OS can be Linux

Host OSI can be Windows

Host OSI can be Linux