Huawei H19-301_V3.0 HCSA-Presales-IP Network Certification V3.0 Exam Practice Test

Answer : A

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.

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

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

Answer : A, B, C, D

SD-WAN (Software-Defined Wide Area Network)is a transformative technology that enhances traditional WAN architectures. Its key characteristics include:

Automatic and intelligent O&M:Centralized management and real-time visibility simplify operations and improve troubleshooting.

Zero Touch Provisioning (ZTP):Enables rapid deployment of branch offices without manual configuration, reducing time and effort.

Dynamic traffic steering:Adjusts traffic paths based on application priorities, ensuring optimal performance for critical applications.

Value-added services:Integrates WAN optimization, security, and other services to enhance network capabilities and streamline service delivery.

These features make SD-WAN a preferred solution for modern enterprises seeking agility, scalability, and cost efficiency.

HCSA-Presales-IP Network Study Guide, Section: 'SD-WAN Features and Benefits.'

Huawei SD-WAN Solution Documentation, Key Characteristics.

Answer : C

TheAR1000Vis a virtual router designed for deployment in public and private cloud environments. It supports integration with major cloud platforms, including:

Amazon Web Services (AWS):Fully supported for hybrid cloud and SD-WAN deployments.

Alibaba Cloud:Supported for seamless connectivity in Alibaba's cloud ecosystem.

Tencent Cloud:Supported for enterprise-grade cloud networking.

However,Baidu Cloudis not officially supported by the AR1000V, making it the correct answer. This limitation may be due to compatibility or strategic partnerships with other cloud providers.

HCSA-Presales-IP Network Study Guide, Section: 'AR1000V Cloud Platform Compatibility.'

Huawei AR1000V Product Documentation, Supported Cloud Platforms.

Answer : A, B, C

Huawei'sAR routersoffer flexible configurations for fixed ports and modular cards, enabling them to adapt to various networking scenarios. Key points include:

LAN-to-WAN switching:LAN ports can be converted to WAN ports using theundo portswitchcommand, allowing greater flexibility in network design.

WAN-to-LAN switching:Some AR router models support converting WAN ports to LAN ports, depending on the hardware and software capabilities.

Layer 2 card limitations:Layer 2 cards configured with VLANIF interfaces can perform basic Layer 3 forwarding but lack advanced features like NAT, MPLS, IPsec, and HQoS.

The claim thatall Layer 2 cards support LAN/WAN switchingis incorrect. Only specific models and configurations support this functionality, making option D false.

HCSA-Presales-IP Network Study Guide, Section: 'AR Router Port and Card Configurations.'

Huawei AR Router Product Documentation, Port Switching and Layer 2 Card Features.

Answer : B

Huawei'sAI roaming technologyenhances wireless network performance by optimizing roamingbehavior for client devices (STAs). Key features include:

Optimal roaming experience:Ensures seamless roaming for different types of STAs, improving wireless speeds by up to30%.

Flexible steering policies:Supports dynamic and differentiated steering based on STA profiles, making option BFALSE.

802.11V support:Requires STAs to support the 802.11V standard for efficient roaming.

The claim that roaming steering policies are inflexible is incorrect, as AI roaming leverages intelligent algorithms to adapt policies dynamically based on network conditions and device characteristics.

HCSA-Presales-IP Network Study Guide, Section: 'AI Roaming Technology and Benefits.'

Huawei WLAN Solution Documentation, AI Roaming Features.

Answer : D

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.

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

Huawei MPLS Technology Documentation, LDP Configuration.

Answer : A

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.

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

Huawei Router Product Documentation, Routing Table Configuration.