Huawei HCIA-Cloud Computing V5.5 - H13-511_V5.5 Exam Practice Test
Hypervisor is the key to virtualizing compute resources. Which of the following is also called a hypervisor?
Correct Answer: A
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The essence of ___ technology is to convert physical devices into logical ones, thereby decoupling software from hardware.
Correct Answer:
Virtualization
Explanation:
In the official Huawei HCIA-Cloud Computing documentation, the core definition of virtualization centers on the abstraction of physical resources. The essence of virtualization technology is precisely the transformation of physical, hardware-based resources-such as CPUs, memory, network interface cards, and storage disks- into virtualized, logical entities. This process is facilitated by a software layer known as the Hypervisor or Virtual Machine Monitor (VMM). By creating this abstraction layer, virtualization effectively achieves the
"decoupling" of the software environment (the Operating System and applications) from the underlying physical hardware.
This decoupling is a revolutionary shift from traditional computing architectures where an Operating System was tied to specific hardware drivers and physical configurations. In a virtualized environment, a Virtual Machine (VM) perceives a set of standardized, logical hardware components provided by the Hypervisor.
Because the software is no longer bound to the physical machine, it gains significant mobility and flexibility.
For example, in Huawei's FusionCompute platform, this decoupling allows for features such as Live Migration, where a running VM can be moved from one physical host to another without any service interruption. This is possible because the VM's "logical" hardware remains consistent even as the "physical" host changes.
Furthermore, this transformation from physical to logical enables better resource utilization through overcommitment and sharing. Multiple logical servers can run on a single physical server, each isolated from the others. This fundamental shift is what provides the agility, scalability, and efficiency required for Cloud Computing. Without the decoupling provided by virtualization, the rapid provisioning and elastic resource scaling that define cloud services would be impossible to achieve. Therefore, virtualization serves as the indispensable technical foundation upon which all other cloud services and management layers are built within the Huawei ICT ecosystem.
Explanation:
In the official Huawei HCIA-Cloud Computing documentation, the core definition of virtualization centers on the abstraction of physical resources. The essence of virtualization technology is precisely the transformation of physical, hardware-based resources-such as CPUs, memory, network interface cards, and storage disks- into virtualized, logical entities. This process is facilitated by a software layer known as the Hypervisor or Virtual Machine Monitor (VMM). By creating this abstraction layer, virtualization effectively achieves the
"decoupling" of the software environment (the Operating System and applications) from the underlying physical hardware.
This decoupling is a revolutionary shift from traditional computing architectures where an Operating System was tied to specific hardware drivers and physical configurations. In a virtualized environment, a Virtual Machine (VM) perceives a set of standardized, logical hardware components provided by the Hypervisor.
Because the software is no longer bound to the physical machine, it gains significant mobility and flexibility.
For example, in Huawei's FusionCompute platform, this decoupling allows for features such as Live Migration, where a running VM can be moved from one physical host to another without any service interruption. This is possible because the VM's "logical" hardware remains consistent even as the "physical" host changes.
Furthermore, this transformation from physical to logical enables better resource utilization through overcommitment and sharing. Multiple logical servers can run on a single physical server, each isolated from the others. This fundamental shift is what provides the agility, scalability, and efficiency required for Cloud Computing. Without the decoupling provided by virtualization, the rapid provisioning and elastic resource scaling that define cloud services would be impossible to achieve. Therefore, virtualization serves as the indispensable technical foundation upon which all other cloud services and management layers are built within the Huawei ICT ecosystem.
Which of the following technologies is used by Open vSwitch (OVS) for remote access and traffic control?
Correct Answer: B
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Complete the following configuration file for a network interface card (NIC) in theopenEuleroperating system to set astatic IP addressand enable the NIC toautomatically start upon system boot.
TYPE=Ethernet
BOOTPROTO=_____
NAME=enp0s4
DEVICE=enp0s4
ONBOOT=_____
IPADDR=172.28.100.100
NETMASK=255.255.255.0
BOOTPROTO=static, ONBOOT=yes
TYPE=Ethernet
BOOTPROTO=_____
NAME=enp0s4
DEVICE=enp0s4
ONBOOT=_____
IPADDR=172.28.100.100
NETMASK=255.255.255.0
BOOTPROTO=static, ONBOOT=yes
Correct Answer:
In HCIA-Cloud Computing (Operating System Basics), Linux network interface configuration is a foundational skill, and openEuler follows the standard Red Hat-style network configuration syntax.
To configure a static IP address, the parameter BOOTPROTO must be set to static. This tells the operating system not to request an IP address from a DHCP server and instead use the manually configured values such as IPADDR and NETMASK.
To ensure that the NIC is automatically activated when the system boots, the parameter ONBOOT must be set to yes. If ONBOOT is set to no, the interface will remain down after boot and must be manually started.
Therefore, the completed and correct configuration is:
BOOTPROTO=static
ONBOOT=yes
BOOTPROTO=static # Uses a fixed IP address
ONBOOT=yes # Enables automatic startup at system boot
This configuration exactly matches HCIA-Cloud Computing requirements for static IP configuration on openEuler.
To configure a static IP address, the parameter BOOTPROTO must be set to static. This tells the operating system not to request an IP address from a DHCP server and instead use the manually configured values such as IPADDR and NETMASK.
To ensure that the NIC is automatically activated when the system boots, the parameter ONBOOT must be set to yes. If ONBOOT is set to no, the interface will remain down after boot and must be manually started.
Therefore, the completed and correct configuration is:
BOOTPROTO=static
ONBOOT=yes
BOOTPROTO=static # Uses a fixed IP address
ONBOOT=yes # Enables automatic startup at system boot
This configuration exactly matches HCIA-Cloud Computing requirements for static IP configuration on openEuler.
In Huawei FusionCompute, which of the following resources cannot be reduced?
Correct Answer: D
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When deploying vLB, you can usually deploy vAG and vLB on the same VM, but you cannot deploy vLB and WI on the same VM.
Correct Answer: A
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The service modes for cloud computing include Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). Which of the following statements arefalseabout the IaaS model?
Correct Answer: A,B,D
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FusionCompute supports the following memory overcommitment technologies: memory sharing, memory swapping, and memory ballooning. After host memory overcommitment is enabled in cluster resource control, one of the preceding memory overcommitment technologies needs to be selected.
Correct Answer: B
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