H19-301_V3.0 Exam Dumps - Huawei HCPA-IP Network Questions and Answers

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.

Layer 2 Switchesoperate at theData Link Layer (Layer 2)and forward packets based onMAC addresses.

Layer 3 Switchesprovide bothLayer 2 switchingandLayer 3 routingcapabilities, allowingIP-based communication between VLANsviaVLANIF interfaces(VLAN Interfaces).

VLANIF interfaces act asvirtual interfacesassigned to VLANs, enablinginter-VLAN communicationwithout an external router.

????Reference:HCSA-Presales-IP Network Official Documentation – Layer 2 vs. Layer 3 Switches

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.

TheAirEngine 5762-12SWis a versatile Wi-Fi 6 AP designed for small and medium-sized enterprises. Key features include:

Flexible covers:The AP's cover can be customized to match the deployment environment.

Leader AP functionality:It can manage up to eight Fit APs, simplifying network architecture.

Maximum wireless rate:Supports up to2.975 Gbps, ensuring high-speed connectivity.

However, the statement that it hastwo GE ports (one for uplink and one for downlink)isFALSE. The AirEngine 5762-12SW has onlyone GE portfor uplink, which limits its wired connectivity options.

MPLS VPN Architecture Overview:

MPLS (Multiprotocol Label Switching) VPN is a widely used technology for creating virtual private networks over a shared infrastructure. It involves specific roles for devices in the network.

Explanation of Each Role:

PE (Provider Edge):These devices sit at the edge of the service provider's network and connect to customer sites. They are responsible for assigning labels and managing VPN routes.

P (Provider):These devices are located in the core of the service provider's network.They perform label switching but do not participate in VPN-specific functions.

CE (Customer Edge):These devices belong to the customer and connect to the PE devices. They are unaware of the MPLS network and simply forward traffic to the PE.

Aggregation and Core:These terms are not specific to MPLS VPN architecture. "Aggregation" refers to a general networking concept, and "Core" is too broad to describe a specific role in MPLS VPNs.

Conclusion:The correct roles in MPLS VPN architecture are PE, P, and CE.

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

Understanding A-FEC (Adaptive Forward Error Correction):

A-FEC is a technology used in Huawei's SD-WAN solution to ensure smooth video playback even in the presence of packet loss. It adds redundant data to compensate for lost packets.

Maximum Packet Loss Rate:

A-FEC can tolerate up to40% packet loss (0.4)while maintaining smooth video playback. This ensures high-quality video streaming even in challenging network conditions.

Conclusion:The correct answer is Option A, as the maximum packet loss rate allowed by A-FEC is 0.4.

Huawei'sdata center autonomous driving networkis classified asL3: conditional autonomous network. This level represents a significant advancement in network automation, where the system can handle most tasks autonomously but still requires human oversight for complex or exceptional scenarios.The levels of autonomous driving networks are defined as follows:

L0:Fully manual operations with no automation.

L1:Basic automation with assisted O&M tools.

L2:Partial autonomy, where some tasks are automated.

L3:Conditional autonomy, enabling self-driving capabilities under specific conditions.

L4:High autonomy, capable of handling nearly all tasks without human intervention.

Huawei's L3 implementation ensures efficient and reliable operations while maintaining flexibility for human intervention when needed.

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.

YANG (Yet Another Next Generation) is adata modeling languageused to define the structure of configuration and state data manipulated by network management protocols.

NETCONF (Network Configuration Protocol)is a network management protocol thatrelies on YANGto provide a standardized way to configure and manage network devices.

YANG defines the structure, while NETCONF provides the transport mechanism to read, modify, and delete configurations.

Other options explained:

SNMP(Simple Network Management Protocol) is used for monitoring but doesnotuse YANG.

CLI(Command-Line Interface) is a manual method for device configuration andnot standardized by YANG.

Telemetryis used for real-time data streaming but isnot dependent on YANG.

????Reference:HCSA-Presales-IP Network Official Documentation – YANG & NETCONF Standardization