Question 19

What are the differentiators of Huawei CloudFabric 3.0 data center network solution?

Correct Answer:ABD
Huawei'sCloudFabric 3.0is a next-generation data center network solution with several key differentiators:
Full-lifecycle automation:Automates tasks across the entire lifecycle, from deployment to operations, reducing manual intervention and errors.
Network-wide intelligent O&M:Leverages AI to provide real-time monitoring, fault prediction, and optimization, enhancing reliability and efficiency.
All-Ethernet storage and HPC network:Supports converged Ethernet-based storage and high-performance computing (HPC), eliminating the need for separate Fibre Channel networks.
Whileall-wireless accessis a feature of campus networks, it is not a differentiator of CloudFabric 3.0, which focuses on wired data center networks.
References:
HCSA-Presales-IP Network Study Guide, Section: "CloudFabric 3.0 Key Features." Huawei CloudFabric Solution Documentation, Differentiators.

Question 20

MACsec is an important feature to ensure security and reliability. Which of the following routers can support MACsec?

Correct Answer:ABD
MACsec (Media Access Control Security) is a Layer 2 encryption protocol that ensures secure communication between devices in a network. It provides data confidentiality, integrity, and replay protection at the Ethernet layer. Below is an analysis of each option: NetEngine 8000 MIA : This model supports MACsec, making it suitable for secure WAN and data center interconnections.
NetEngine 8000 F1A : This model also supports MACsec, enabling secure high-speed connections.
NetEngine 8000 MIC : The MIC series does not support MACsec, as it is primarily designed for modular interfaces without encryption capabilities.
NetEngine 8000 M6 : This model supports MACsec, ensuring secure communication for enterprise networks.
Thus, the correct answers are A , B , and D . References:
Huawei NetEngine 8000 Series Router Product Documentation, HCSA-Presales-IP Network Documentation.

Question 21

Wi-Fi standards are formulated by IEEE 802.11 working groups. Huawei serves as the chair of the 802.11ax Working Group.

Correct Answer:B
While Huawei is a major contributor to the development of Wi-Fi standards and actively participates in IEEE 802.11 working groups, it does not serve as the chair of the802.11ax Working Group. The 802.11ax standard, also known as Wi-Fi 6, was developed under the leadership of the IEEE 802.11 working group, with contributions from multiple vendors and organizations.Huawei has played a significant role in advancing Wi-Fi technologies, but the claim that it chairs the 802.11ax Working Group is incorrect.
References:
HCSA-Presales-IP Network Study Guide, Section: "Wi-Fi Standards and IEEE Contributions."
IEEE 802.11ax Standard Documentation, Working Group Leadership.

Question 22

What are the common Huawei WLAN networking modes?

Correct Answer:ABCD
HuaweiWLAN solutionssupport multiple networking modes to adapt to different enterprise requirements:
(A) Independent Fat AP Networking (True):Each AP operatesindependentlywithout a Wireless Access Controller (WAC). Suitable forsmall-scale networks.
(B) Cloud Management Networking (True):UsesHuawei CloudCampusto manage APs remotely viaiMaster NCE-Campus. Ideal forlarge, multi-branch enterprises.
(C) WAC + Fit AP Networking (True):CentralizedWAC (Wireless Access Controller)managesFit APs, optimizing performance and security.
(D) AC-Free Self-Networking of the Leader AP (True):Aleader APacts as a mini-controller, managing other APs without a WAC. Used insmall to medium networks.
Reference:HCSA-Presales-IP Network Official Study Guide, WLAN Networking Modes

Question 23

Which of the following campus network challenges are enterprises facing as they move towards the all-cloud era?

Correct Answer:ABCDE
As enterprises transition to cloud-centric architectures, campus networks face several challenges:
Slow fault locating:Traditional networks lack intelligent tools for rapid fault detection and resolution, leading to prolonged downtime.
Wi-Fi discontinuous networking:Poorly designed wireless networks result in coverage gaps and inconsistent user experiences.
Cloud outpacing network:Cloud services evolve faster than traditional networks can adapt, creating bottlenecks.
Difficult network scaling:Legacy networks struggle to scale dynamically to meet growing demands.
Cross-domain fragile infrastructure:Fragmented management across domains (e.g., wired, wireless, WAN) leads to inefficiencies and vulnerabilities.
Addressing these challenges requires modern solutions like SDN (Software-Defined Networking), AI-driven O&M, and unified management platforms.
References:
HCSA-Presales-IP Network Study Guide, Section: "Campus Network Challenges in the Cloud Era."
Huawei Campus Network Solution Documentation, Trends and Challenges.

Question 24

An enterprise SD-WAN network can be divided into two layers: physical underlay network and virtual overlay network, which are completely decoupled from each other.

Correct Answer:A
HuaweiSD-WAN architectureconsists of: Physical Underlay Network:
Composed ofMPLS, Internet, or LTE links.
Providesbasic connectivitybetween branches and data centers. Virtual Overlay Network:
Usestunnels (IPSec, GRE, VXLAN)to createlogical connectionsbetween sites. Completely decoupledfrom thephysical underlay, enabling flexible traffic management. Reference:HCSA-Presales-IP Network Official Study Guide, SD-WAN Architecture

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