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

Answer : C

In Huawei'shyper-converged data center network solution, thenetwork analyzerplays a critical role in monitoring and analyzing traffic flows. It provides real-time insights into network performance, identifies anomalies, and helps locate faults quickly.Other components serve different purposes:

VAS controller:Manages value-added services like firewalls and load balancers.

Network controller:Handles overall network orchestration and policy enforcement.

Computing manager:Focuses on compute resource allocation and optimization.

The network analyzer is specifically designed for traffic analysis and fault detection, making it thecorrect answer.

HCSA-Presales-IP Network Study Guide, Section: 'Hyper-Converged Data Center Components.'

Huawei Hyper-Converged Solution Documentation, Network Analyzer Role.

Answer : A, B, C, D

Huawei'sAR routerssupport multiple deployment modes to simplify network setup and management:

USB-based deployment:Configuration files can be loaded via USB drives, enabling rapid deployment without manual intervention.

DCN deployment:Devices are automatically discovered and configured through Huawei's Device Control Network (DCN), streamlining large-scale deployments.

DHCP option-based deployment:Routers obtain configuration parameters from a DHCP server, reducing manual setup efforts.

Email-based deployment:Configuration files can be sent to devices via email, allowing remote provisioning.

These modes cater to different scenarios, ensuring flexibility and ease of deployment.

HCSA-Presales-IP Network Study Guide, Section: 'AR Router Deployment Modes.'

Huawei AR Router Product Documentation, Deployment Options.

Answer : A, B, C, D

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.

HCSA-Presales-IP Network Study Guide, Section: 'SD-WAN Networking Models.'

Huawei SD-WAN Solution Documentation, Supported Architectures.

Answer : B

Huawei'sSD-WAN multi-fed and selective receiving technologyis not limited to5G links. This technology can be applied to various types of WAN links, including MPLS, Internet, LTE, and 5G, to optimize traffic steering and improve reliability.The multi-fed feature allows multiple links to be used simultaneously, while selective receiving ensures that the best path is chosen for each application based on real-time conditions. This flexibility makes the technology applicable across diverse network environments, not just 5G.

HCSA-Presales-IP Network Study Guide, Section: 'SD-WAN Multi-Fed and Selective Receiving Technology.'

Huawei SD-WAN Solution Documentation, Link Aggregation and Optimization.

Answer : B

WhileForward Error Correction (FEC)is a valuable feature in Huawei's SD-WAN solution for mitigating packet loss, it is not recommended to enable FEC forall traffic. FEC introduces additional overhead by transmitting redundant data, which can consume bandwidth and degrade performance for non-critical traffic.Instead, FEC should be selectively enabled for sensitive applications (e.g., real-time voice and video) where packet loss has a significant impact. This approach balances performance and resource utilization effectively.

HCSA-Presales-IP Network Study Guide, Section: 'SD-WAN Packet Loss Mitigation Techniques.'

Huawei SD-WAN Solution Documentation, FEC Configuration Guidelines.

Answer : A, B, D

In Huawei switches, Layer 2 Ethernet interfaces are used to forward data at the data link layer (Layer 2) of the OSI model. These interfaces are essential for VLAN segmentation and communication within a local area network (LAN). The three main types of Layer 2 Ethernet interfaces are:

Hybrid:A hybrid interface can carry traffic from multiple VLANs and is highly flexible. It allows both tagged and untagged traffic, making it suitable for complex network designs.

Trunk:A trunk interface is used to carry traffic from multiple VLANs between switches or other network devices. It typically tags VLAN traffic using IEEE 802.1Q encapsulation.

Access:An access interface is associated with a single VLAN and is used to connect end devices like PCs or IP phones. It carries untagged traffic by default.

The options 'Agg' (likely referring to aggregation) and 'Core' are not Layer 2 interface types but rather refer to higher-level concepts like link aggregation or core network architecture.

HCSA-Presales-IP Network Study Guide, Section: 'Switching Basics and VLAN Configuration.'

Huawei Switch Product Documentation, VLAN Interface Types.

Answer : A, B, C, D

Common Attack Methods in Enterprise Networks:

Enterprise networks are vulnerable to various cyberattacks, targeting both infrastructure and applications.

Explanation of Each Attack Method:

Command line injection:Exploits vulnerabilities in command-line interfaces to execute unauthorized commands.

Brute-force attacks:Attempts to guess passwords or encryption keys through exhaustive trial-and-error methods.

Cross-site attacks:Includes cross-site scripting (XSS) and cross-site request forgery (CSRF), targeting web applications.

Remote code execution:Exploits vulnerabilities to execute arbitrary code on a target system, often leading to full system compromise.

Conclusion:All four options represent common attack methods faced by enterprise networks.

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

Huawei Cybersecurity White Paper.