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
Which of the following networking models are supported in Huawei's SD-WAN solution?
Correct Answer:
ABCD
Huawei'sSD-WAN solutionsupports multiple networking models to meet diverse enterprise requirements:
Hub-spoke networking:Centralizes traffic through a hub site, ideal for security and policy enforcement.
Hierarchical networking:Organizes sites into tiers (e.g., regional hubs and branches), enabling scalable architectures.
Partial-mesh networking:Connects critical sites directly while routing other traffic through hubs, balancing performance and cost.
Full-mesh networking:Provides direct connections between all sites, ensuring optimal performance for latency-sensitive applications.
Intelligent HQoSis not a networking model but rather a feature that enhances Quality of Service (QoS) across any of these models.
References:
HCSA-Presales-IP Network Study Guide, Section: "SD-WAN Networking Models." Huawei SD-WAN Solution Documentation, Supported Architectures.
Huawei enterprise security product portfolio comprises many products. Which of the following security products are included?
Correct Answer:
ABC
Huawei offers acomprehensive enterprise security portfolio, including:
(A) AntiDDoS (True):Protects againstDistributed Denial-of-Service (DDoS) attacks.
(B) Modular Firewall (True):Providesscalable, high-performance securityfor enterprise networks.
(C) SecoManager Security Controller (True):Acentralized security management platform.
(D) Desktop Firewall (False):Notpart of Huawei??s enterprise security product portfolio. Reference:HCSA-Presales-IP Network Official Study Guide, Huawei Security Products Overview
Which of the following statements are TRUE about iStack and CSS?
Correct Answer:
ABC
iStack (Intelligent Stacking)andCSS (Cluster Switching System)are twohigh- availability networking technologiesused to logically combine multiple switches for better redundancy and scalability.
(A) True – CSS (Cluster Switching System)allowstwo or more modular switchesto function
as one logical switch. CSS-capable switches connect usingCSS cables.
(B) True – iStackallows multiplefixed switchesto be stacked together into a single logical unit usingiStack cables.
(C) True – CSS is supported by modular switches, whileiStack is supported by fixed switches. Onlytwoswitches can form a CSS cluster.
(D) False – iStack supports more than two switches, making this statement incorrect. Reference:HCSA-Presales-IP Network Official Study Guide, iStack & CSS Section
An enterprise WAN mainly implements cross-region interconnection. Which of the following interconnections are implemented on the enterprise WAN?
Correct Answer:
ACD
An enterprise WAN (Wide Area Network) is designed to connect geographically dispersed locations within an organization. The primary interconnections include:
Option A: Enterprise headquarters and branches are commonly interconnected via WAN to enable centralized management and resource sharing.
Option B: Carrier networks and enterprise networks are not part of the enterprise WAN itself but represent external connectivity provided by service providers.
Option C: Enterprise campus networks and data centers are interconnected to ensure seamless access to centralized resources and applications.
Option D: Enterprise office networks and production networks are interconnected to facilitate collaboration and operational efficiency.
These interconnections form the backbone of an enterprise WAN, enabling cross-region communication and resource sharing.
References:
Huawei HCSA-Presales-IP Network Documentation: Enterprise WAN Architecture Huawei Enterprise Networking Solutions Overview
