Pass the Huawei HCIA-Cloud Computing H13-511_V5.5 Questions and answers with CertsForce

In the Huawei HCIA-Cloud Computing curriculum, specifically under the "Network Technology Basics" module, Open vSwitch (OVS) is introduced as a key component of software-defined networking (SDN). The primary technology used by OVS for remote access to its control plane and for the programmatic control of traffic flows is OpenFlow.5 OpenFlow is a standard communications protocol that allows an SDN controller (the "brain" of the network) to interact with the forwarding plane (the switch) of a network device.

OpenFlow enables "traffic control" by allowing the controller to define specificflow rules.6These rules tell the switch exactly how to handle packets based on various criteria such as source MAC, destination IP, or TCP port. Instead of the switch making local, autonomous decisions (as a traditional switch does), OVS uses OpenFlow to receive instructions from a centralized management layer. This is how Huawei’s cloud infrastructure achieves "remote access" for network orchestration; an administrator can change the network behavior of thousands of virtual machines across multiple physical hosts by pushing new OpenFlow tables from a central controller.

WhileOVSDB(Option B) is also a critical protocol for OVS, its primary role is to manage theconfigurationof the switch (such as creating bridges, adding ports, or setting up tunnels), rather than the "traffic control" or "flow steering" handled by OpenFlow.BFD(Option C) is used for link failure detection, andNQA(Option D) is a Huawei-specific tool for measuring network performance. In the context of the HCIA exam, OpenFlow is the correct answer for the protocol that enables the intelligent, remote management of data paths in a virtualized network environment.

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VM live migration in FusionCompute has several mandatory prerequisites.

Ais required because live migration applies only torunning VMs.

Bis required to ensure uninterrupted network connectivity during migration.

Dis required because both source and target hosts must access the same datastore to migrate VM disks seamlessly.

IMC policy (C)isnot mandatoryfor live migration. It is requiredonly when hosts have different CPU models. If hosts use compatible CPUs, live migration can proceed without configuring IMC.

Therefore, the correct answer isC.

Forsmall-scale office scenarios (≤100 users), the HCIA–Cloud Computing FusionAccess deployment guidelines recommend asimplified architecturethat balances availability and cost.

Deployingone integrated vAG + vLB VM on each CNA nodeprovides:

Basichigh availability

Reduced VM count

Simpler deployment and maintenance

Sufficient performance for small user规模

Separate deployment of vAG and vLB or multiple integrated VMs is more suitable formedium and large-scale environments.

Therefore, the recommended solution istwo CNA nodes, each deployed with a VM that integrates the vAG and vLB.

In the Huawei HCIA-Cloud Computing curriculum, understanding the classification and reservation of IPv4 addresses is essential for proper network configuration within a virtualized data center. According to official documentation, certain address ranges are reserved for specific protocols or system functions and are strictly prohibited from being assigned to service hosts (end-user devices or servers).

Firstly,0.0.0.0is an unspecified address. It is used by a host that does not yet have an IP address when it sends a DHCP Discover packet to find a server. It also represents the "default route" in routing tables. Secondly, the127.0.0.0/8range is reserved for loopback testing. Any packet sent to this range never leaves the local host's internal network stack; it is used to verify that the TCP/IP suite is installed correctly. Thirdly,255.255.255.255is the "limited broadcast address." It is used to send data to every device on the current local network segment but is never routed across different subnets. Finally, the169.254.0.0/16range (represented here as a /24 subnet) is the Automatic Private IP Addressing (APIPA) range. If a host is configured to obtain an IP automatically but fails to contact a DHCP server, the operating system assigns an address from this range so the host can still communicate with others on the same link.

None of these addresses can be used as a source or destination for standard service traffic across a routed cloud infrastructure. Service hosts must be assigned either public IP addresses or private IP addresses from the RFC 1918 ranges (10.0.0.0/8, 172.16.0.0/12, or 192.168.0.0/16). Assigning reserved addresses to service hosts would lead to routing conflicts, local loopback errors, or a complete failure of network communication within the Huawei FusionCompute or FusionAccess environment.

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As detailed in the Huawei FusionAccess documentation for the HCIA curriculum, the Huawei Desktop Protocol (HDP) is designed to optimize the user experience in Virtual Desktop Infrastructure (VDI). Statement A is correct: HDP features "Intelligent identification of video data."8 The protocol can automatically distinguish between standard GDI (Graphics Device Interface) desktop elements and active video streams.9 When video is detected, HDP switches to specialized compression algorithms (such as H.264 or H.265) to ensure efficient encoding and reduced bandwidth consumption.

Statement B is also a verified function. HDP employsDynamic Frame Rate Adjustment.10By monitoring the network quality (latency and packet loss) in real-time, the protocol can adjust the frame rate (e.g., from 60fps down to 30fps or lower) to maintain a smooth, jitter-free playback experience even on unstable or low-bandwidth links. Statement C is true as HDP supports multiple rendering modes. In "Multimedia Redirection," the video stream is decoded on theclientside (using local hardware acceleration), while in other modes, decoding occurs on theserver(VM) with the resulting images sent to the client. This dual-support flexibility ensures compatibility across various terminal types.

Statement D isincorrectbecause of the "maximum of 2K videos" limitation. According to the official HCIA-Cloud Computing V5.5 and FusionAccess technical guides, HDP@Media technology (multimedia redirection) explicitly supports4K UHDvideo playback, not just a maximum of 2K. While D correctly mentions "automatic reconnection" and "dynamic traffic adjustment," the resolution limit is technically outdated for the current Huawei cloud ecosystem. Thus, for the purposes of the HCIA certification, only A, B, and C are fully accurate representations of HDP's high-fidelity audiovisual capabilities.

(Note: The original question contained a typo. As requested, "host OS" has been corrected to "guest OS" because Linux, in this scenario, is the Guest operating system.)

In the official Huawei HCIA-Cloud Computing curriculum, the architecture of a virtualized system is divided into the Host Machine and the Guest Machine. TheHost Machineis the physical server (hardware) and the virtualization software (CNA in FusionCompute). TheGuest Machineis the Virtual Machine (VM) created by the hypervisor. According to the training materials, theGuest OSis the operating system that is installed and executed within the virtualized environment of a VM.13

Therefore, if a VM running Linux is created, the Linux operating system is the Guest OS, and it runs specifically inside theLinux VM. The VM acts as a logical container that provides the Linux OS with virtualized CPU, memory, storage, and network resources.14From the perspective of the Linux OS, it believes it is running on a dedicated physical server, but in reality, it is encapsulated within the VM boundary provided by the CNA.

The other components mentioned have different roles:CNA (Computing Node Agent)is the "host" software that manages the hardware and hosts the VM, but the Linux OS does not run "in" the CNA directly; it runs in the VM managed by the CNA.VRM (Virtual Resource Management)is the management platform used by administrators to create and configure the VM.VNA (Virtual Node Agent)is a process within the CNA that handles management commands from the VRM. In the Huawei certification logic, it is crucial to distinguish between the "Container" (the VM) and the "Occupant" (the Guest OS). The Guest OS is always tied to the VM environment, which ensures logical isolation and mobility across the cloud infrastructure.

FusionCompute uses aunified storage abstraction model. Regardless of whether the backend storage is SAN, NAS, local disks, or distributed storage, FusionComputeencapsulates storage resources into datastores.

This abstraction simplifies management and allows virtual machines to consume storage in a standardized manner. While statements A, B, and C describe correct individual concepts,D best represents the core architectural principleemphasized in HCIA documentation.

Therefore, the correct answer isD.

Quick provisioning using alinked clone templateis designed to rapidly deploy desktops while ensuring standardization and automation.

According to HCIA–Cloud Computing FusionAccess service provisioning procedures, the quick provision workflow includes:

Creating the VMbased on the linked clone template and snapshot.

Renaming the VMto meet enterprise naming rules.

Adding the VM to the domain, enabling centralized authentication and policy control.

Associating the VM with a user or user group, which determines desktop assignment and access permissions.

All listed operations are integral steps in the linked clone quick provisioning process. Therefore,all options are correct.

According to the official Huawei FusionAccess component deployment guidelines, the statement is FALSE. In the Huawei HCIA-Cloud Computing V5.5 curriculum, the deployment modes for infrastructure components are highly flexible to accommodate different business scales.

In adistributed deployment(large scale), it is a best practice to keep roles separate for performance and security. However, in astandalone or small-scale deployment, Huawei explicitly supports and even provides a "vAG/vLB/WI" all-in-one template. In this scenario, theWeb Interface (WI),Virtual Access Gateway (vAG), andVirtual Load Balancer (vLB)are all co-deployed on the same Virtual Machine. This reduces the hardware resource footprint and simplifies the management of the desktop cloud for small offices or testing environments.

ThevLB (Virtual Load Balancer)is responsible for distributing traffic among multiple WI servers to ensure high availability. ThevAG (Virtual Access Gateway)handles the secure HDP protocol traffic from the terminal to the desktop VM. TheWIprovides the login portal. Because these three roles interact directly during the user's login and desktop connection phase, they are technically compatible for co-residency on a single Linux-based appliance.

While the statement correctly identifies that vAG and vLB can be co-deployed (a very common practice), it incorrectly claims that vLB and WIcannotbe co-deployed. In the HCIA exam, it is important to remember that Huawei's "Standalone" deployment mode allows for the consolidation of these specific access-layer components into a single VM to maximize resource efficiency. Therefore, the assertion that such a deployment is impossible is technically incorrect.

Huawei FusionComputeHigh Availability (HA)is designed to improve service continuity by automatically responding to VM or host failures.

OptionAis true. FusionCompute allows administrators to configuredifferent HA policiesfor virtual machines based on service importance, which aligns with SLA-driven management principles.

OptionCis true. One of the core functions of HA isautomatic VM rebootwhen a virtual machine encounters a failure, ensuring rapid service recovery.

OptionDis true. FusionCompute continuously monitorsCNA host and VM status. If a CNA host fails, HA triggers VM migration or restart on another available host in the same cluster, minimizing downtime.

OptionBis false. Even when usingshared storage, HAdoes not guarantee zero data loss. HA focuses onservice recovery, not data consistency. Data loss may still occur depending on application state and write operations at the time of failure.

Therefore, the false statement isB.