H19-301_V3.0 HCSA-Presales-IP Network Certification V3.0 Questions and Answers

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.

Understanding Overlay Topologies in SD-WAN:

In Huawei's SD-WAN solution, overlay networks are created on top of the physical underlay network. These overlays can be customized based on specific services or applications.

Service Independence:

Different service topologies (e.g., voice, video, data) areindependent of each other, allowing granular control over traffic paths, QoS policies, and security settings.

Conclusion:The statement is TRUE because overlay topologies in Huawei's SD-WAN solution are service-specific and operate independently.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 9: SD-WAN Solutions.

Huawei SD-WAN Solution Brochure.

Airflow Design in Data Center Switches:

Airflow design is critical for efficient heat dissipation in data center switches. Front-to-back airflow ensures that cool air enters from the front and hot air exits from the back, aligning with typical data center cooling systems.

Huawei Cloud Engine S12700E:

The S12700E series switches are designed with front-to-back airflow to improve heat dissipation efficiency. This design minimizes overheating risks and ensures stable operation in high-density environments.

Conclusion:The statement is TRUE because the S12700E series uses a front-to-back airflow design.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 6: Core Switch Product Portfolio.

Huawei Cloud Engine S12700E Product Documentation.

To defend againstapplication-layer DDoS attacks, Huawei'sAntiDDoSproduct is the most suitable choice.Key details about the options:

HiSec Insight:A security analytics platform for threat detection and response, but not specifically designed for DDoS mitigation.

USG6000E:A next-generation firewall with basic DDoS protection, but limited in handling large-scale or sophisticated attacks.

AntiDDoS:A dedicated solution for detecting and mitigating DDoS attacks, including application-layer attacks like HTTP floods.

FireHunter:A sandboxing solution for advanced threat detection, not DDoS defense.

TheAntiDDoSproduct excels in identifying and mitigating application-layer attacks by analyzing traffic patterns and applying granular mitigation policies.

References:

HCSA-Presales-IP Network Study Guide, Section: "Anti-DDoS Solutions."

Huawei AntiDDoS Product Documentation, Application-Layer Protection.

The statement contains several inaccuracies. Fat APs (Autonomous Access Points) are standalone devices that do not require a Wireless Access Controller (AC) to function. They are fully capable of managing their own configurations and operations independently.In contrast,Fit APs(Lightweight Access Points) rely on a centralized AC for management and configuration. While Fit APs offer centralized control and scalability, they require the deployment of an AC, which can increase costs. Fat APs are simpler to deploy in small-scale networks but may lack the advanced features and scalability of Fit APs.

The claim that Fat APs "need to work with an AC" is incorrect, making the entire statement false.

References:

HCSA-Presales-IP Network Study Guide, Section: "Wireless Network Architectures and AP Types."

Huawei WLAN Product Documentation, Fat AP vs. Fit AP Comparison.

Understanding Telnet:Telnet is a protocol used for remote management of networkdevices. Unlike console port management, which requires a physical connection, Telnet operates over the network.

Address Requirement:For Telnet communication to occur, the client must have an IP address. This is because Telnet relies on the TCP/IP protocol suite, and communication is established using IP addresses.

Why Not Other Options?

VLAN:A VLAN (Virtual Local Area Network) is a logical segmentation of a network but does not directly represent an address for communication.

AS:An Autonomous System (AS) is a collection of IP networks under a single administrative domain, not an address type.

MAC:A MAC address is a hardware identifier used at Layer 2 of the OSI model. While important for local network communication, it is not sufficient for Telnet, which operates at Layer 3.

Conclusion:The correct answer is IP, as it is the fundamental addressing scheme required for Telnet communication.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 5: Network Management Protocols.

Huawei Enterprise Networking Product Documentation.

Overview of Huawei CloudCampus 3.0:

Huawei CloudCampus 3.0 is designed to provide a fully-wireless, intelligent, and cloud-based campus network solution. It focuses on improving efficiency, reducing costs, and enabling digital transformation.

Analyzing Each Option:

Option A:"One global network: 40% lower private line costs" is correct. Huawei CloudCampus 3.0 reduces private line costs by leveraging cloud-based technologies and SD-WAN solutions.

Option B:"L3 autonomous driving: 90% fewer complaints" is correct. The solution uses AI-driven automation to minimize network issues and improve user satisfaction.

Option C:"Low-carbon intelligence: 60% smaller energy consumption of the entire network" isnot correct. While Huawei emphasizes energy efficiency, the claim of a 60% reduction in energy consumption is exaggerated and not supported by official documentation.

Option D:"Fully-wireless experience: 40% higher productivity" is correct. The fully-wireless architecture enhances user experience and productivity.

Conclusion:The incorrect benefit description is Option C.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 8: Campus Network Solutions.

Huawei CloudCampus Solution Brochure.

In theMOX (Ministries of Government)scenario, where high-performance and scalable WAN connectivity is required, Huawei recommends theNetEngine 8000 Xseries as the backbone router.Key reasons for this recommendation:

NetEngine 8000 X:Designed for ultra-high-capacity WAN backbones, supporting terabit-level throughput and advanced features like SRv6 and EVPN.

NetEngine 8000 M6/MIC/F1A:These models are more suited for aggregation or access roles rather than backbone routing.

TheNetEngine 8000 Xis ideal for government networks due to its ability to handle massive traffic volumes, ensure low latency, and support future-proof technologies.

References:

HCSA-Presales-IP Network Study Guide, Section: "Government WAN Scenarios and Router Recommendations."

Huawei NetEngine 8000 Series Product Documentation, Backbone Router Use Cases.

AWLAN (Wireless Local Area Network)is anetwork that connects wireless devices (Wi-Fi terminals) via access points (APs)using the802.11 protocol.

(A) LAN – False:A LAN is a broader concept that includes both wired and wireless networks.

(B) WAN – False:A WAN connects geographically distant networks, not local wireless devices.

(C) WLAN – True:APs connect to the wired network via Ethernet and provide wireless connectivity to devices.

(D) MAN – False:A MAN (Metropolitan Area Network) spans a city or large area, not limited to wireless connectivity.

Geographic Redundancy in SD-WAN Controllers:

Huawei's SD-WAN solution provides geographic redundancy to ensure high availability and disaster recovery.

Analysis of Each Statement:

Option A:This is correct. The active and standby clusters share the same domain name or IP address, enabling seamless failover during an active/standby switchover.

Option B:This is correct. Geographic redundancy requires the active and standby clusters to have the same number of nodes to ensure balanced performance.

Option C:This is correct. Huawei's SD-WAN solution supports only one active cluster and one standby cluster for geographic redundancy.

Option D:This is incorrect. While the active and standby clusters synchronize data in real time, only the active cluster provides services. The standby cluster remains idle until a failover occurs.

Conclusion:The FALSE statement is Option D.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 9: SD-WAN Solutions.

Huawei SD-WAN Controller Documentation.

MPLS (Multiprotocol Label Switching) uses labels to forward packets efficiently along predefined paths called Label Switched Paths (LSPs). These labels are assigned dynamically using protocols likeLabel Distribution Protocol (LDP)or RSVP-TE (Resource Reservation Protocol - Traffic Engineering).While static routing and manual configuration can define paths, they do not involve dynamic label assignment.Similarly, direct routes are not related to MPLS label distribution. LDP is specifically designed to exchange label information between routers, enabling MPLS forwarding.

References:

HCSA-Presales-IP Network Study Guide, Section: "MPLS Architecture and Label Distribution."

Huawei MPLS Technology Documentation, LDP Configuration.

Huawei's vision for the datacom industry is indeed "IP on everything," reflecting its commitment to building ubiquitous, intelligent, and converged IP networks. This vision emphasizes the integration of IP technologies into all aspects of communication, including data centers, campuses, and wide-area networks, to support digital transformation and innovation.

The statement is therefore TRUE .

References:

Huawei Datacom Vision White Paper, HCSA-Presales-IP Network Documentation.

Huawei'sAirEngineseries access points (APs) are designed for high-performance wireless networking. Some models include2.5GE uplink portsto support higher bandwidth requirements for modern applications like video streaming and IoT. The following models support 2.5GE uplink ports:

AirEngine 5760-51:High-performance Wi-Fi 6 AP with 2.5GE ports.

AirEngine 5761-21:Compact Wi-Fi 6 AP with 2.5GE ports.

AirEngine 6761-21T:Outdoor Wi-Fi 6 AP with 2.5GE ports.

TheAirEngine 6761-21andAirEngine 5762-12do not support 2.5GE uplink ports, making them unsuitable for scenarios requiring higher bandwidth.

References:

HCSA-Presales-IP Network Study Guide, Section: "AirEngine Series Features and Specifications."

Huawei AirEngine Product Documentation, Uplink Port Details.

TheCloudEngine 16800 seriesis Huawei's flagship data center switch lineup, designed for high-performance, scalable, and reliable networking in modern data centers. The mainstream models in this series include:

CloudEngine 16812:A high-density switch with 12 line cards, supporting up to 576 x 400GE ports.

CloudEngine 16816:The largest model in the series, with 16 line cards, supporting up to 768 x 400GE ports.

CloudEngine 16804:A compact model with 4 line cards, suitable for smaller deployments or edge data centers.

CloudEngine 16808:A mid-sized model with 8 line cards, balancing performance and scalability for medium to large data centers.

These models cater to a wide range of use cases, from small-scale deployments to hyperscale cloud environments.

References:

HCSA-Presales-IP Network Study Guide, Section: "CloudEngine 16800 Series Overview."

Huawei CloudEngine 16800 Series Product Documentation, Model Specifications.

The physical layer (Layer 1) of the OSI model is responsible for transmitting raw bitstreams over a physical medium. When data reaches this layer, it is converted into signals compatible with the transmission medium being used. For example:

Optical signalsare used in fiber-optic cables.

Electrical signalsare used in copper cables (e.g., Ethernet).

Electromagnetic wavesare used in wireless communication (e.g., Wi-Fi or radio waves).

This conversion ensures that data can be transmitted efficiently across different types of media. The statement is therefore correct.

References:

HCSA-Presales-IP Network Study Guide, Section: "OSI Model and Physical Layer Functions."

Huawei Transmission Technologies Documentation.

The Huawei CloudEngine 6881 is a high-performance data center switch that supports both stacking and M-LAG (Multichassis Link Aggregation Group) technologies. M-LAG is a key feature for increasing redundancy and reliability in leaf-spine architectures by enabling two switches to act as a single logical device for link aggregation.

The claim that the CE6881 does not support M-LAG is FALSE , as this model fully supports M-LAG to enhance network availability and fault tolerance.

References:

Huawei CloudEngine 6881 Product Documentation, HCSA-Presales-IP Network Documentation.

AMAC (Media Access Control) addressis a48-bit unique identifierassigned to network interfaces for communications at the data link layer. It is typically written inhexadecimal format(base-16), which consists of numbers (0-9) and letters (A-F).

Example formats:

Dash-separated:00-21-0A-B9-DC-79

Colon-separated:00:21:0A:B9:DC:79

Continuous:00210AB9DC79

Other options are incorrect:

(A) Decimal – False:MAC addresses are not expressed in decimal format.

(B) Octal – False:Octal (base-8) is not used for MAC addresses.

(D) Binary – False:While MAC addresses are ultimately stored asbinary, they are not presented in this format for human readability.

Understanding SecoManager Deployment Modes:

SecoManager is a security controller that integrates with Huawei's iMaster NCE platforms to manage security policies across networks.

Analysis of Each Mode:

Integrated deployment with iMaster NCE-IP:Supported for managing security in IP/MPLS networks.

Integrated deployment with iMaster NCE-Fabric:Supported for data center and cloud fabric security management.

Integrated deployment with iMaster NCE-Campus: Not supportedbecause SecoManager focuses on specialized security scenarios, while iMaster NCE-Campus manages campus networks.

Independent deployment:Supported for standalone security management.

Conclusion:The correct answer is Option C, as integrated deployment with iMaster NCE-Campus is not a valid SecoManager deployment mode.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 11: Security Solutions.

Huawei SecoManager Product Documentation.

Huawei's iMaster NCE-FabricInsight is an intelligent O&M platform for data center networks that leverages knowledge graph modeling to enhance network management and troubleshooting. Below is an explanation of each option:

"1-3-5" troubleshooting : This refers to a structured approach for fault detection, isolation, and resolution within 1 minute of fault detection, 3 minutes of fault location, and 5 minutes of fault recovery. FabricInsight uses AI-driven analytics to achieve this level of efficiency.

Data plane verification (DPV) : DPV ensures the correctness of the data forwarding path by verifying configurations and detecting anomalies in real time. This helps prevent issues like misconfigurations or routing errors.

Network snapshot comparison : This feature allows administrators to compare network states at different points in time, helping identify changes that may have caused performance degradation or faults.

Network health evaluation : FabricInsight continuously monitors the network and evaluates its health status, providing insights into potential risks and optimization opportunities.

All four options are valid O&M services provided by iMaster NCE-FabricInsight.

References:

Huawei iMaster NCE-FabricInsight Solution Overview, HCSA-Presales-IP Network Documentation.

Huawei's datacom portfolio includes the "Four Engines" product families:

NetEngine : Routers for wide-area networks.

CloudEngine : Switches for data center networks.

AirEngine : Wireless access points for Wi-Fi networks.

HiSecEngine : Security products for comprehensive protection.

AREngine is not part of the "Four Engines." It is unrelated to Huawei's datacom portfolio and focuses on augmented reality (AR) technologies.

Thus, the correct answer is C .

References:

Huawei Datacom Portfolio Overview, HCSA-Presales-IP Network Documentation.

iMaster NCE (Network Cloud Engine) uses NETCONF (Network Configuration Protocol) to deliver configurations to network devices. NETCONF is an XML-based protocol that provides a standardized way to configure and manage network devices programmatically.

Telemetry : Used for collecting operational data from devices, not for configuration delivery.

SDN : Refers to a broader concept of software-defined networking, not a specific protocol.

RESTful : Used for API interactions but not for device configuration.

Thus, the correct answer is A , as NETCONF is the primary protocol used by iMaster NCE for configuration delivery.

References:

Huawei iMaster NCE Protocol Guide, HCSA-Presales-IP Network Documentation.

VXLAN (Virtual Extensible LAN) is a network virtualization technology that addresses the limitations of traditional VLANs and MAC address tables by enabling large-scale Layer 2 networks over Layer 3 infrastructure. It is particularly useful in data centers with a growing number of virtual machines (VMs).

Among the options provided:

CE6881 : This switch supports VXLAN and is designed for high-density data center environments. It provides excellent scalability and performance for VXLAN-based networks, making it the most suitable choice.

CE9860 : While this switch is a high-end model, it is primarily used for core or aggregation layers and may not be the best fit for VXLAN at the access layer.

CE6820 : This switch does not support VXLAN, making it unsuitable for the scenario.

CE5882 : This is an older model and lacks the advanced features required for modern VXLAN deployments.

Thus, the correct answer is A , as the CE6881 is the most appropriate model for VXLAN scenarios.

References:

Huawei CloudEngine VXLAN Solution Overview, HCSA-Presales-IP Network Documentation.

Adefault routeis a special type of route used in routing tables to forward packets when no specific route matches the destination IP address. It acts as a "catch-all" route for traffic that does not match any other routes in the routing table.The default route is typically represented as0.0.0.0/0, where:

0.0.0.0represents any destination IP address.

/0indicates a subnet mask of 0 bits, meaning it applies to all possible IP addresses.

Default routes are commonly used in scenarios where a router needs to forward traffic to a gatewayor next-hop device for further processing. This simplifies routing table management, especially in networks with limited or centralized connectivity.

References:

HCSA-Presales-IP Network Study Guide, Section: "Routing Basics and Default Routes."

Huawei Router Product Documentation, Routing Table Configuration.

The Huawei CloudEngine S8700-10 is a high-performance aggregation switch designed for enterprise campus networks. It supports up to 4 power modules , which provide redundancy and ensure stable operation even in the event of a power module failure. Redundant power supplies are critical for maintaining network uptime and reliability, especially in mission-critical environments.

The other options (2, 6, and 8) do not match the specifications of the S8700-10. While some models in the S8700 series may support fewer or additional power modules, the S8700-10 specifically accommodates up to 4 power modules.

References:

Huawei CloudEngine S8700 Series Switch Hardware Guide, HCSA-Presales-IP Network Documentation.

Overview of Huawei Campus Network Virtualization:

Huawei's campus network virtualization allows a single physical network to support multiple logical networks (VNs), enabling efficient resource utilization and simplified management.

Explanation of Each Capability:

One network carrying multiple services:This is a core feature of virtualization, where a single physical network supports multiple services (e.g., voice, video, data) through logical segmentation.

Automatic service policy delivery:Virtualization enables automated delivery of service policies to ensure consistent configuration across all devices in the network.

Automatic virtual network (VN) deployment:Huawei's solution automates the creation and deployment of virtual networks, reducing manual intervention and speeding up service provisioning.

Automatic physical network deployment:This is incorrect because physical network deployment typically involves manual setup and configuration, which cannot be fully automated.

Conclusion:The correct capabilities are Options A, B, and C.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 8: Campus Network Virtualization.

Huawei CloudCampus Solution Brochure.

Understanding SRv6 Capabilities:

SRv6 (Segment Routing over IPv6) is a next-generation networking technology that enables flexible traffic engineering and seamless traversal across different types of private lines.

Huawei NetEngine AR821 E Support for SRv6:

TheNetEngine AR821 Erouter supports SRv6, making it suitable for SD-WAN andWAN deployments where traffic optimization and path control are critical.

Conclusion:The statement is TRUE because SRv6 can traverse all types of private lines, and the NetEngine AR821 E supports SRv6.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 4: Router Product Portfolio.

Huawei NetEngine Router Product Documentation.

To exchange routes between Autonomous Systems (ASs), BGP (Border Gateway Protocol) is used. BGP is specifically designed for inter-AS routing and supports scalable and policy-based route distribution across large networks.

Static routing : Requires manual configuration and is not scalable for large networks.

IS-IS and OSPF : These are Interior Gateway Protocols (IGPs) used for intra-AS routing, not inter-AS routing.

Thus, the correct answer is B , as BGP is the standard protocol for inter-AS route exchange.

References:

Huawei BGP Protocol Overview, HCSA-Presales-IP Network Documentation.

Comprehensive and Detailed in Depth Explanation:The iMaster NCE-Campus controller is designed to provide unified management for both LAN and WAN environments. It simplifies network operations by centralizing configuration, monitoring, and policy enforcement across campus networks and WAN connections.

Option A: iMaster NCE-WAN focuses on WAN management and optimization.

Option C: iMaster NCE-Fabric is tailored for data center networks.

Option D: iMaster NCE-IP is primarily used for IP/MPLS backbone networks.

By supporting unified LAN-WAN management, iMaster NCE-Campus helps enterprises streamline their network infrastructure and improve operational efficiency.

References:

Huawei HCSA-Presales-IP Network Documentation: iMaster NCE-Campus Features

Huawei iMaster NCE Product Portfolio

Huawei'sL3 Autonomous Driving Network (ADN)solution leverages AI and automation to enhance network operations and maintenance (O&M). Key capabilities include:

Precise fault analysis:Uses AI algorithms to identify root causes of faults quickly and accurately, reducing downtime.

Intelligent network optimization:Dynamically adjusts network parameters to optimize performance and resource utilization.

Real-time experience visualization:Provides a comprehensive view of network health and user experience, enabling proactive issue resolution.

These features collectively improve network performance, reduce operational complexity, and enhance user satisfaction.

References:

HCSA-Presales-IP Network Study Guide, Section: "Autonomous Driving Network Levels and Features."

Huawei ADN Solution Documentation, Intelligent O&M Capabilities.

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'sSD-WAN solutionallows for the creation ofoverlay topologiestailored to specific services. These topologies are logically independent, meaning they can be customized and optimized for different types of traffic (e.g., voice, video, data) without interfering with one another.This independence ensures that each service topology can meet its unique requirements, such as latency, bandwidth, and security, while maintaining overall network efficiency.

References:

HCSA-Presales-IP Network Study Guide, Section: "SD-WAN Overlay Topologies."

Huawei SD-WAN Solution Documentation, Service-Based Topology Planning.

Comparison of Uplink Ports and Reliability:

Non-Huawei switches often rely on subcards to expand uplink ports, which can introduce complexity and potential points of failure.

Huawei S6730-H24X6CI and S6730-H48X6C switches come withbuilt-in six 100GE uplink ports, eliminating the need for additional subcards. This design simplifies deployment and enhances reliability.

Advantages in Project Response:

Built-in uplink ports reduce configuration time and improve operational efficiency.

Higher reliability ensures consistent performance, which is crucial for mission-critical applications.

Conclusion:The statement is TRUE because the S6730-H series switches offer built-in 100GE uplink ports and superior reliability compared to non-Huawei switches.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 6: Switch Product Portfolio.

Huawei Campus Switch Product Documentation.

TheCloudEngine 8700-10is part of Huawei's high-density modular access switch lineup, designed for large-scale campus networks. It supports up to480 10G portsin a single chassis, making it the highest-density modular access switch in the industry.This high port density enables organizations to consolidate their network infrastructure, reducing space and power requirements while supporting growing bandwidth demands.

References:

HCSA-Presales-IP Network Study Guide, Section: "Huawei Campus Switch Portfolio."

Huawei CloudEngine 8700 Series Product Documentation, Port Density Specifications.

MACsec (Media Access Control Security)is a Layer 2 encryption protocol that ensures secure and reliable communication over Ethernet links. Among Huawei'sNetEngine 8000 series routers, the following models support MACsec:

NetEngine 8000 M6:High-performance router with MACsec support for secure WAN connections.

NetEngine 8000 MIC:Modular interface card-based router with MACsec capabilities.

NetEngine 8000 F1A:Fixed configuration router supporting MACsec for secure access links.

TheNetEngine 8000 MIAdoes not support MACsec, making it unsuitable for scenarios requiring Layer 2 encryption.

References:

HCSA-Presales-IP Network Study Guide, Section: "MACsec Support in NetEngine Routers."

Huawei NetEngine 8000 Series Product Documentation, Security Features.

Comprehensive and Detailed in Depth Explanation:An MPLS (Multiprotocol Label Switching) network uses Label Switched Paths (LSPs) to forward packets. However, an LSP is unidirectional , not bidirectional. This means that the path is established in one direction only, from the ingress Label Edge Router (LER) to the egress LER. For bidirectional communication, two separate LSPs are required—one for each direction.

This concept is critical in understanding MPLS architecture, as it ensures efficient packet forwarding based on labels rather than IP addresses. The unidirectional nature of LSPs allows for better traffic engineering and control over data flow in MPLS networks.

References:

Huawei HCSA-Presales-IP Network Documentation: MPLS Fundamentals

RFC 3031: Multiprotocol Label Switching Architecture

Deployment Modes for AR Routers:

Huawei AR routers support multiple deployment methods to simplify configuration and provisioning in various scenarios.

Explanation of Each Mode:

USB-based deployment:Configuration files can be loaded onto the router using a USB drive, enabling zero-touch provisioning.

DHCP option-based deployment:The router obtains its configuration from a DHCP server, which provides necessary parameters such as IP addresses and configuration file URLs.

DCN deployment:Devices are automatically discovered and configured through the Data Communication Network (DCN), reducing manual intervention.

Email-based deployment:Configuration files or scripts can be sent to the router via email, allowing remote provisioning.

Conclusion:All four options are valid deployment modes for AR routers.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 4: Router Deployment.

Huawei AR Router Product Documentation.

Comprehensive and Detailed in Depth Explanation: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

In IP-based networks, routers use the destination IP address in the network layer header to determine the next hop for forwarding packets. The routing table contains entries that map destination IP addresses to outgoing interfaces or next-hop routers.

Source MAC and Destination MAC are Layer 2 (data link layer) addresses and are not used for routing decisions.

Source IP is irrelevant for routing, as the router focuses on delivering the packet to the destination IP address.

Thus, the correct answer is B , as routers use the destination IP address to make forwarding decisions.

References:

Huawei Routing Fundamentals Guide, HCSA-Presales-IP Network Documentation.

TheS6730-H24X6Cmodel in the CloudEngine S6730 series supportsMACsec (Media Access Control Security), providing Layer 2 encryption for secure data transmission. MACsec ensures confidentiality, integrity, and replay protection for Ethernet traffic, making it ideal for sensitive environments like financial institutions and government networks.Other models in the series, such as the S6730-S24X6Q, do not support MACsec, limiting their use in scenarios requiring advanced security features.

References:

HCSA-Presales-IP Network Study Guide, Section: "MACsec Support in Huawei Switches."

Huawei CloudEngine S6730 Series Product Documentation, Security Features.

Hyper-Converged Data Center Network Solution:

Huawei's hyper-converged data center network solution emphasizes automation, intelligence, and efficiency across the entire lifecycle of network operations.

Impact of Full-Lifecycle Automation:

TTM (Time to Market):Full-lifecycle automation significantly reduces the time required to deploy and manage services, resulting in a90% reduction in TTM.

Proactive fault prediction:While automation enhances fault detection, proactive prediction of 90% of faults is primarily driven by AI and analytics, not just automation.

Storage performance:Improvements in storage performance are typically achieved through hardware optimization, not automation.

Unleashing computing power:This is related to resource utilization and orchestration, not directly to full-lifecycle automation.

Conclusion:The improvement attributed to full-lifecycle automation is Option A, as TTM is reduced by 90%.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 7: Data Center Solutions.

Huawei Hyper-Converged Data Center Brochure.

Overview of Huawei's Wireless Backhaul Solution:

Huawei's wireless backhaul solution for rail transportation ensures reliable communication for train control systems, passenger services, and other applications.

Analysis of Each Statement:

Option A:The handover delay in Huawei's solution can indeed be as low as30 ms, ensuring seamless connectivity during train movement.

Option B:The solution supportshighly reliable active-active links, providing redundancy and fault tolerance.

Option C:The solution is designed to carry critical systems liketrain control signals, ensuring safety and efficiency.

Option D:This is incorrect because Huawei's solution supports backhaul even at speeds of160 km/h or higher, making it suitable for high-speed rail networks.

Conclusion:The correct statements are Options A, B, and C.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 10: Rail Transportation Solutions.

Huawei Rail Transportation Solution Brochure.

Overview of IoT Integration in Huawei APs:

Huawei IoT APs support various methods to integrate IoT modules or functions, enabling unified management of Wi-Fi and IoT devices.

Explanation of Each Method:

Built-in IoT chip:Some Huawei APs come with built-in IoT chips, providing native support for IoT protocols like Zigbee, Bluetooth, or RFID.

USB interface:External IoT modules can be connected via the USB interface, allowing flexible integration of additional IoT functionalities.

PCIe interface:High-speed IoT modules can be integrated using the PCIe interface, offering enhanced performance and scalability.

PoE out port:While PoE out ports provide power to external devices, they do not directly integrate IoT modules or functions.

Conclusion:The correct methods are Options A, B, and C.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 8: IoT Solutions.

Huawei IoT AP Product Documentation.

Understanding Antenna Gain:

Antenna gain refers to the ability of an antenna to focus or direct radio frequency (RF) energy in a specific direction. Higher gain antennas provide stronger signals and extended coverage in the direction they are focused.

Impact on AP Selection:

In scenarios where long-range coverage or better signal strength is required, an AP with a higher antenna gain (within regulatory limits) is preferred.

However, it is important to ensure that the antenna gain complies with the regulatory requirements of the country where it is deployed.

Conclusion:The statement is TRUE because higher antenna gain improves signal strength and coverage, making such APs desirable for specific use cases.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 8: WLAN Solutions.

Huawei AirEngine Product Documentation.

While Huawei'sUSG series firewallsinclude basicanti-DDoS capabilities, they are not designed to completely replace standaloneanti-DDoS products. Firewalls primarily focus on access control, threat prevention, and policy enforcement, whereas dedicated anti-DDoS solutions offer advanced features like large-scale traffic scrubbing, anomaly detection, and mitigation for massive DDoSattacks.For environments facing sophisticated or volumetric DDoS threats, standalone anti-DDoS appliances or cloud-based services are recommended to complement firewall capabilities.

References:

HCSA-Presales-IP Network Study Guide, Section: "Firewall vs. Anti-DDoS Solutions."

Huawei USG Series Firewall Product Documentation, Anti-DDoS Features.

Network Classification Based on Geographical Coverage:

Networks are categorized based on their geographical scope into three primary types:

Local Area Network (LAN):Covers a small geographic area, such as a single building or campus.

Metropolitan Area Network (MAN):Covers a larger area than a LAN, typically spanning a city or metropolitan region. It serves as an intermediate between LANs and WANs.

Wide Area Network (WAN):Covers a large geographic area, often spanning multiple cities, countries, or continents.

Role of MANs:MANs act as a bridge between LANs and WANs, providing connectivity for organizations that need to connect multiple LANs within a city or region.

Conclusion:The statement is correct because networks are indeed classified into LANs, MANs, and WANs based on their geographical coverage.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 1: Network Fundamentals.

Huawei Networking Technology and Device (HNTD) Documentation.

Comprehensive and Detailed in Depth Explanation:Huawei's wireless backhaul solution for rail transportation is designed to provide high reliability and low latency for mission-critical applications such as train control systems.

Option A: The handover delay in Huawei's solution can indeed be as low as 30 ms. This ensures seamless connectivity during transitions between base stations, which is crucial for real-time applications like train control signaling.

Option B: The solution supports carrying train control signal systems, ensuring safe and efficient operations.

Option C: This statement is incorrect. Huawei's wireless backhaul solution supports high-speed mobility, including trains traveling at speeds up to 160 km/h or higher, without losing connectivity.

Option D: Active-active links are a key feature of the solution, providing redundancy and ensuring high reliability even in challenging environments.

References:

Huawei HCSA-Presales-IP Network Documentation: Wireless Backhaul Solutions for Rail Transportation

Huawei Case Studies: Rail Transportation Networks