What O&M services does iMaster NCE-FabricInsight provide based on knowledge graph modeling?

1. A. "1-3-5" troubleshooting
2. B. Data plane verification (DPV)
3. C. Network snapshot comparison
4. D. Network health evaluation

Correct Answer: ABCD
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 CloudEngine 8700 is the highest-density modular access switch in the industry. How many 10G ports can one unit of Huawei CloudEngine 8700-10 provide at maximum?

1. A. 384
2. B. 480
3. C. 288
4. D. 336

Correct Answer: B
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.

Redundancy is the guarantee of network stable operation, which is one of the important factors to consider when selecting an aggregation switch.Huawei CloudEngine S8700supportsmicrosecond-level active/standby MPLI switchover, one-tenth the industry average.

1. A. TRUE
2. B. FALSE

Correct Answer: A
Redundancy ensures network reliabilityby providing backup mechanisms to avoid single points of failure.
TheHuawei CloudEngine S8700switch offers:
Microsecond-level active/standby MPLI switchover, which is10 times fasterthan the industry average.
High availabilitythrough redundant components, such asdual power supplies, dual main processing units (MPUs), and hot-swappable fans.
Reference:HCSA-Presales-IP Network Official Documentation – CloudEngine S8700 Redundancy Features

Enterprise networks, no matter campus networks or DCNs, are facing a lot of potential attacks. What are the common types of attack methods we are facing?

1. A. Remote code execution
2. B. Cross-site attacks
3. C. Command line injection
4. D. Brute-force attacks

Correct Answer: ABCD
Enterprise networks are vulnerable to a variety of cyberattacks, including:
Remote code execution:Attackers exploit vulnerabilities to execute malicious code on target systems, potentially gaining full control.
Cross-site attacks:Includes Cross-Site Scripting (XSS) and Cross-Site Request Forgery (CSRF), where attackers manipulate web applications to steal data or perform unauthorized actions.
Command line injection:Attackers inject malicious commands into input fields, compromising system integrity.
Brute-force attacks:Attackers attempt to guess passwords or encryption keys through repeated trial-and-error attempts.
These attack methods highlight the importance of implementing robust security measures, such asfirewalls, intrusion detection/prevention systems, and regular patching. References:
HCSA-Presales-IP Network Study Guide, Section: "Common Cyberattack Methods." Huawei Security Solution Documentation, Threat Landscape Overview.

Which of the following statements are TRUE about Huawei's wireless backhaul solution for rail transportation? (Select All that Apply)

1. A. The handover delay can be as low as 30 ms.
2. B. Highly reliable active-active links are available.
3. C. The solution can be used to carry the train control signal system.
4. D. Backhaul is unavailable when a train is traveling at 160 km/h.

Correct Answer: ABC
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.