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

Power Module Support in Huawei Switches:

Many Huawei switches are designed with dual power module slots to ensure redundancy and reliability. However, some lower-end models may not support this feature.

Analysis of Each Switch:

S5736-S24T4XC:This switch supports dual power modules for redundancy.

S5732-H:This switch also supports dual power modules.

S5731-S24P4X:This switch supports dual power modules.

S5735-L:This switch is a lower-end model anddoes not support dual power modules, making it less suitable for environments requiring high reliability.

Conclusion:The S5735-L series switch does not support two power modules.

MACsec (Media Access Control Security)is aLayer 2 encryption protocolthat protectsEthernet framesfrom tampering and eavesdropping. It provides:

(A) Data Frame Integrity Check (True):Ensures that transmitted frames arenot altered.

(B) Service Data Encryption (True):Encrypts Ethernet frames fordata confidentiality.

(C) Data Source Authenticity Verification (True):Verifies thesource of Ethernet framesusing cryptographic authentication.

(D) Replay Protection (True):Preventsreplay attacksby detecting and discarding duplicate frames.

📖Reference:HCSA-Presales-IP Network Official Study Guide, MACsec Security Features Section

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.

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.

Hyper-converged data center network solutions emphasize automation across the entire lifecycle, from deployment to operations. Below is an analysis of each option:

100% unleashing of computing power : While automation can optimize resource allocation, achieving 100% utilization of computing power is not directly tied to full-lifecycle automation.

TTM reduced by 90% : Full-lifecycle automation streamlines processes such as provisioning, configuration, and scaling, significantly reducing Time-to-Market (TTM). This is a direct benefit of automation.

Proactive prediction of 90% of faults : Proactive fault prediction is typically achieved through AI-driven analytics, not solely through automation.

Storage performance improved by 90% : Improvements in storage performance are more closely related to advancements in hardware (e.g., NVMe over Fabrics) and software optimizations, rather than automation.

Thus, the correct answer is B , as full-lifecycle automation primarily reduces TTM.

HuaweiiMaster NCEis acentralized network management and control systemforSDN-capableandtraditionaldevices.

(A) True – SDN control via NETCONF/YANG:

iMaster NCE usesNETCONF(based on theYANG model) to manage and controlSDN-enableddevices, automating configuration and policy enforcement.

(B) True – SNMP for traditional devices:

Traditional network devices (non-SDN) are managed throughSNMP (Simple Network Management Protocol), which provides device monitoring and basic configuration.

(C) False – No direct control through CU (Control Unit):

Huawei does not define aCUas an independent management entity in iMaster NCE. Instead, SDN-capable devices are controlled viaNETCONF/YANG, while traditional devices rely onSNMP.

📖Reference:HCSA-Presales-IP Network Official Study Guide, iMaster NCE Overview Section

MACsec (Media Access Control Security) is a Layer 2 encryption protocol that ensures secure communication between devices in a network. It provides data confidentiality, integrity, and replay protection at the Ethernet layer.

The following models in the Huawei CloudEngine S6730 series support MACsec:

S6730-H48X6C : This switch supports MACsec on its high-speed ports, ensuring secure communication for critical applications.

S6730-H24X6C : Similar to the H48X6C, this model also supports MACsec, making it suitable for environments requiring robust security.

S6730-H24X4Y4C : This model also includes MACsec support, providing advanced security features for enterprise networks.

However, the S6730-S24X6Q does not support MACsec. It is designed for scenarios where Layer 2 encryption is not a primary requirement.

Thus, the correct answers are A , B , and D .

Huawei's CloudFabric Easy Solution is designed to simplify data center network deployment and operations. The "EASY" framework highlights the following four key aspects:

EasY-Maintenance : The solution emphasizes simplified operations and maintenance (O&M) through automation and intelligent tools. For example, it leverages AI-powered analytics to predict and resolve issues proactively.

Simplification : CloudFabric Easy focuses on reducing complexity in network design, deployment, and management. It achieves this by integrating advanced technologies like intent-driven networking (IDN) and zero-touch provisioning (ZTP).

Automation : Automation is a cornerstone of the solution, enabling tasks like configuration, provisioning, and troubleshooting to be performed automatically. This minimizes human intervention and reduces the risk of errors.

While "expandability" and "easy sales" are important considerations in network design and marketing, they are not part of the official "EASY" highlights of the CloudFabric Easy Solution.

Overview of Huawei Wi-Fi 6 Technologies:

Huawei Wi-Fi 6 incorporates several innovative technologies to enhanceperformance, reliability, and user experience in wireless networks.

Explanation of Each Technology:

SmartRadio for Air Interface Optimization:This technology optimizes air interface efficiency, improving throughput and reducing interference.

Intelligent multimedia scheduling:Ensures prioritized delivery of voice, video, and other critical services, enhancing user experience.

Industry-leading smart antennas:Provide better signal coverage and capacity by dynamically adjusting beamforming directions.

AI roaming steering:Uses artificial intelligence to predict and optimize client roaming behavior, ensuring seamless connectivity.

Conclusion:All four options are advantageous technologies of Huawei Wi-Fi 6.