H19-301_V4.0 HCSA-Presales-IP Network V4.0 Questions and Answers

Huawei'sWAN ISP solutionis designed for Internet Service Providers (ISPs) with the following key highlights:

A. 99% satisfaction of customer requirements: Huawei emphasizes its end-to-end solution capability and customer satisfaction, making the solution highly competitive and marketable.

B. BNG/CGN/SR/IPsec 4-in-1 design: This integration minimizes device deployment and simplifies O&M.

C. Compact design (1U/2U): Ideal for small PoPs (Points of Presence), improves space efficiency.

D. Energy-saving: Huawei routers adopt energy-saving technologies, helping reduceenergy consumption by up to 30%.

These features are documented in Huawei'sISP WAN Solution brochureand emphasized in HCSA-IP training.

The Huawei CloudEngine S6750-S is a high-performance all-optical switch in the fixed switch series, suitable for 10 Gbps campus networks.

It supports GE/10GE/25GE downlink ports and 25GE/100GE uplink ports (Option A — Correct).

It includes advanced features such as:

VXLAN and network slicing (Option B — Correct)

Real-time telemetry and intelligent O&M via iMaster NCE (Option C — Correct)

Native WAC capabilities for wireless and wired convergence (Option E — Correct)

However, MACsec (IEEE 802.1AE) is not supported on all ports by default — support is partial or dependent on model/sub-model. Hence, Option D is false.

WheniMaster NCE (controller) and the analyzerare deployed on asingle node (combined deployment),certain advanced functions are limited or unavailabledue to resource constraints:

A. ERSPAN,C. MDC (Multi-Domain Control), andD. IFIT (In-situ Flow Information Telemetry)are still supported in basic or partial forms.

B. Multi-cloud simulationis aresource-intensive featurethat requiresindependent, dedicated controller and simulation nodesfor cloud interconnection emulation, and isnot supportedin combined deployments.

Huawei's Intelligent Converged Scheduling technology for campus WLAN:

Uses MU-MIMO (Multi-User Multiple-Input Multiple-Output) to enable simultaneous communication with multiple clients.

Integrates OFDMA (Orthogonal Frequency Division Multiple Access) to allocate subcarriers efficiently among users.

These two technologies are cornerstones of Wi-Fi 6 and Wi-Fi 7 intelligent scheduling.

MRU-MIMO is not a valid standard.

SRv6 is a WAN routing and forwarding technology unrelated to WLAN scheduling.

Huawei's Wi-Fi 7 AirEngine APs integrate proprietary Wi-Fi Shield technology, which:

Uses spatial beamforming and artificial interference generation to emit “decoy” signals.

These signals act as deliberate noise, preventing nearby attackers from eavesdropping.

The intended recipient (STA) can still demodulate and receive data correctly using signal-processing algorithms.

This adds an additional physical layer of wireless security to protect against passive attacks.

Huawei AirEngine Wi-Fi solutions integrate multiple advanced technologies that set them apart in enterprise WLAN:

A. AI Roaming: Enables fast and seamless client handoff between APs based on signal quality, avoiding sticky client issues.

B. Smart Antennas: Huawei’s smart antenna technology enhances signal quality and improves client connectivity directionally.

C. Intelligent Multimedia Scheduling: Uses intelligent algorithms to prioritize real-time traffic such as voice and video, ensuring better QoS.

D. MU-MIMO + OFDMA + MRU Converged Scheduling: Huawei supports simultaneous uplink/downlink MU-MIMO and OFDMA with MRU (Multi-RU) scheduling to maximize throughput and efficiency.

Huawei's VIP user assurance solution, introduced in their Wi-Fi 6 and Wi-Fi 7 AirEngine APs, includes two key technologies:

VIP FastPass: Identifies and prioritizes VIP users at the air interface level to ensure their packets are transmitted first.

Per-Packet Power Control (PPC): Dynamically adjusts the transmit power for each packet to improve signal quality and reduce interference for VIP users.

These technologies increase both reliability and available bandwidth for high-value users and critical applications.

In Huawei’sSD-WAN solution,RRs (Route Reflectors)perform key functions:

A. True– RRs distribute VPN and tunnel routes based on SD-WAN VPN topologies.

C. True– RRs can be deployed onphysical AR routersorvirtualized AR6700V-L instances.

D. True– RRstransmit BGP routes, reducing the number of BGP peer sessions needed between CPEs.

B. False–RRs do not need to be deployed independently. They can becollocated with other roles or functions, particularly in smaller or virtual environments.

Therefore,statement B is false.

Huawei’sintelligent cloud-network solutioninvolves the convergence of multiple product lines to buildNet5.5G-ready infrastructure:

A. CloudEngine: Core for data center and campus switching

B. NetEngine: High-performance routing platform for WAN and core network scenarios

C. HiSecEngine: Security product line for integrated and intelligent security services

D. AirEngine: Wireless access product line, including Wi-Fi 6/7

All four products are pillars in Huawei’s strategy to evolve towardubiquitous, intelligent, high-speed IP connectivityunderNet5.5G.

TheHuawei CloudEngine S12700Eseries includesfour different models, each offering a different number ofservice slots, enabling flexible scaling for campus networks:

S12704E– 4 slots

S12706E– 6 slots

S12710E– 10 slots

S12712E– 12 slots

These models meet various enterprise size and performance requirements.

Segment Routing (SR) introduces a source routing model where the source node defines the path that packets take through the network by imposing a list of segments (instructions).

SR is aligned with SDN principles — the network is programmable and flexible.

SR does NOT depend on LDP or RSVP. Instead, SR uses extensions to IGP (OSPF or IS-IS) or BGP to distribute segment information.

SR simplifies the control plane by reducing the number of protocols needed for label distribution.

SR can work with or without a controller — the controller enhances path computation but is not mandatory for basic SR operation.

In Huawei'sUSB-based SD-WAN deployment method, thecommon stepsinclude:

D. Plan sites and configure devices and the network: This is done first in the iMaster NCE system.

B. Generate a deployment file: After planning, the system generates the configuration file.

C. Perform onsite ZTP deployment: This file is copied to a USB drive and plugged into the device for ZTP.

A. Import initial configuration files in batchesis not part of USB-based deployment but applies tobulk deploymentmethods using the network or controller directly.

Huawei’sintelligent computing network, used to support large-scale AI model training, usesultra-broadband 400Gand is primarily based onClos networkingfor high-speed, non-blocking traffic:

A. Two-layer Clos networking of modular switches: Enables high-density east-west traffic.

C. Two-layer Clos networking of modular and fixed switches: Offers cost-effective scaling and flexibility.

B. Fixed-only ClosandD. Three-layer modulartopologies arenot typically usedin Huawei's AI-ready designs due to limited scalability or inefficiency in AI workload patterns.

Huawei’sHiSecEngine firewallsuse a massive and frequently updatedsecurity signature database, which includes:

Application identification

Intrusion prevention rules

Virus and malware signature libraries

The latest-generationHiSecEngine USG firewallscanidentify over 20,000 applications, providinggranular control over network trafficand ensuring compliance, performance, and security.

Huawei'sFireHunteris an advanced threat detection and response system designed toidentify and mitigate APT (Advanced Persistent Threat) attacks. It usessandboxing, behavioral analysis, and threat intelligence correlationto detect all stages of an APT attack, including:

A. Reconnaissance: The attacker collects info and identifies targets.

B. Data exfiltration: Collected data is extracted from internal systems.

C. Initial compromise: Through phishing emails.

D. Infiltration: User opens malicious attachment, leading to infection.

E. Remote control: Malware downloads a remote control tool (RAT), giving the attacker control.

FireHunter detects these activities based on behavior patterns, traffic anomalies, and sandbox execution results.

The CloudEngine S8700 is a modular switch designed for high-performance, high-visibility campus networks.

Huawei equips this series with an “Experience Assurance Card,” which enables:

Real-time traffic identification

Application-level statistics collection

In-path traffic analysis for performance bottlenecks

This hardware is central to the centralized experience assurance solution offered in the High-Quality 10 Gbps Campus Network.

A. True: TheAirEngine 6760R-51, a rugged outdoor Wi-Fi 6 AP,supports IoT expansionvia Huawei’sIoT cards.

B. False: Huawei IoT expansion is implemented viaIoT cards and dedicated expansion modules,not PCIe or USB.

C. False: Huawei supportsmultiple IoT protocols, includingBLE, RFID, Zigbee, andNB-IoT, not just RFID and Bluetooth.

D. False: AlthoughHuawei minimizes interferencethrough smart scheduling,some spectrum overlap may still occur, andco-channel interference is always considered in planning.

Option D is false. The AirEngine 6776I-X7TH is an indoor high-density AP and does not have built-in omnidirectional antennas; instead, it often uses external directional antennas, particularly when deployed in large venues like stadiums or exhibition centers.

Correct information for other options:

A: IP68 is indeed the highest industry standard for dust/water resistance in outdoor APs.

B: The AirEngine 8760R-X1 supports BLE 5.0 and can deliver PoE output to other devices (such as cameras).

C: The AirEngine 6760R-51/51E supports tri-radio with a combined rate of up to 10.75 Gbps.

Huawei's CloudEngine series switches integrate the iReliable technology system, which includes:

Three-level fast switchover mechanisms:

Link-level protection (via M-LAG)

Device-level protection

Network-level protection using technologies like BFD, GR, and NSR

M-LAG (Multi-Chassis Link Aggregation Group) provides fast failover on link or device failure.

Combined with other reliability features, Huawei’s solution aims to achieve zero service interruption and 99.999% network availability.

M-LAG (Multi-Chassis Link Aggregation Group)is a technology that allowslink aggregation across two physical devices, enabling:

Active-active system deployment

Traffic load balancing

Backup protection without relying on stacking

UnlikeEth-Trunk, which aggregates links on the same device,M-LAGextends this functionality across multiple devices.

LLDPis a discovery protocol andStackrefers to virtual device technology, not specifically inter-device link aggregation.

Huawei’s CloudEngine S6780-H is a high-performance fixed switch that:

Offers up to 128 × 25GE ports or 64 × 50GE ports in a compact 1U form factor.

Is recognized as the industry's highest-density fixed campus switch.

Supports powerful features such as VXLAN, telemetry, and flexible NetStream.

Other switches listed:

CloudEngine S8700 is a modular chassis-based switch.

CloudEngine S16700 does not exist (appears to be a typographical error).

CloudEngine S6750-S is high-performance but lower in density than the S6780-H.

Huawei’s WAN solution for thefinancial industryis tailored to meet requirements such aslow latency, high reliability, security, and fast deployment. It is used in:

A. Integrated information bearer network: Connects multiple financial systems and services.

C. Interconnection and load balancing between backbone clouds: Supportsmulti-cloud hybrid deployments.

D. Agile cloud migration of bank branches: Enables secure, automated SD-WAN-based migration to cloud services.

B. Vehicle-ground communication networkisspecific to the transportation or railway industry, not financial services.

Huawei’sHiSec Endpointis anendpoint detection and response (EDR) solutionthat:

Provides24/7 active protection against ransomwareusing behavior-based detection, AI algorithms, and rollback mechanisms.

Integratesanti-ransomware enginesto detect encryption behaviors in real time.

Ensureszero data lossviafile protection, backup, and instant recovery.

It is widely deployed in sectors wheredata security on endpoints is critical, including finance, government, and healthcare.

In adata center network, thephysical connection componentstypically include:

Access switches(connect to servers)

Core/Aggregation switches(form the backbone of the network)

Optical fibers(used for high-speed physical links between switches)

Whileservers are connected to the network, they arenot considered part of the network's physical infrastructure (connection components)— they are endpoints or resources hostedonthe network, notcomponents ofthe physical connection infrastructure.

NAT HRP (Hot Standby High Reliability Protocol)is used in Huawei firewalls to synchronizeNAT sessions and state informationbetween theactive and standby firewalls. This enablesseamless failoverwithout session interruption, thereby improving thereliabilityof the firewall deployment.

A. VLANis used for logical segmentation

B. Securityis a broad concept, not a specific technology

C. Policiesgovern traffic handling but don't impact hardware reliability directly

Huawei’s anti-DDoS solution supportsmultiple deployment scenariosdepending on the network design and customer needs:

A. Flow inspection and dynamic traffic diversion: Monitors traffic flows and dynamically redirects suspicious traffic to the cleaning center.

B. In-line deployment: Anti-DDoS device sits directly in the data path, filtering traffic in real time.

C. Off-path deployment and static traffic diversion: Traffic is redirected to scrubbing centers using fixed rules.

D. Per-packet inspection and dynamic traffic diversionisnot a standard Huawei anti-DDoS deployment term, and Huawei’s solution focuses onflow-level inspection, not deep per-packet analysis in this context.

In aWAC (Wireless Access Controller) + Fit AParchitecture:

A, B, and Care accurate descriptions.

D is false: The AC (WAC) and Fit APsdo not use SNMP for communication. Instead, they communicate usingCAPWAP (Control And Provisioning of Wireless Access Points)protocol, which supports control, management, and data encapsulation between ACs and APs.

SNMPis used for network management and monitoring but isnot the protocol for AC-to-AP communicationin WLAN scenarios.

Huawei's six comprehensive border security protection capabilities for SD-WAN or converged gateway routers typically include:

Built-in Firewall – Provides basic packet filtering and security zoning.

Remote URL Filtering – Uses cloud-based services to filter harmful websites.

Antivirus – Detects and blocks malicious files.

IPS (Intrusion Prevention System) – Detects and blocks known threats and attack signatures.

Application-level ACL – Allows granular control of applications beyond Layer 4 (e.g., blocking TikTok, WhatsApp, etc.).

Data leakage prevention (DLP) and behavioral analytics may also be included depending on the security license.

However, "Data encryption" is a broader category not specifically named among the six security protection items in Huawei's SD-WAN documentation. Encryption (e.g., IPsec VPN) is used for secure tunnels but is not listed as one of the six application-layer protections.

Huawei’s 10 Gbps campus network solution is described as “experience-centric,” aiming to:

Improve wireless performance with Wi-Fi 7 and interference mitigation (Wireless experience).

Enable AI-driven operations and centralized visualization (O&M experience).

Ensure deterministic application delivery via traffic identification and smart QoS (Application experience).

This triad forms the core of Huawei’s experience-based networking model for education, healthcare, finance, and enterprise sectors.