Application-layer DDoS attacks target specific applications or services, such as HTTP floods or DNS amplification. Below is an analysis of each option:
* AntiDDoS : This product is specifically designed to detect and mitigate DDoS attacks, including application-layer attacks. It provides real-time traffic analysis and automated mitigation capabilities.
* FireHunter : This is a sandbox solution used for detecting advanced threats and malware. It is not designed to defend against DDoS attacks.
* USG6000E : This is a next-generation firewall that provides basic DDoS protection but lacks the specialized capabilities of AntiDDoS for large-scale attacks.
* HiSec Insight : This is a security analytics platform that provides visibility into threats and vulnerabilities. While it can help identify DDoS activity, it does not actively mitigate attacks.
Thus, the correct answer is A , as AntiDDoS is the best-suited product for defending against application-layer DDoS attacks.
References:
* Huawei AntiDDoS Solution Overview, HCSA-Presales-IP Network Documentation.

Huawei'sCloudFabric 3.0is a next-generation data center network solution with several key differentiators:
Full-lifecycle automation:Automates tasks across the entire lifecycle, from deployment to operations, reducing manual intervention and errors.
Network-wide intelligent O&M:Leverages AI to provide real-time monitoring, fault prediction, and optimization, enhancing reliability and efficiency.
All-Ethernet storage and HPC network:Supports converged Ethernet-based storage and high-performance computing (HPC), eliminating the need for separate Fibre Channel networks.
Whileall-wireless accessis a feature of campus networks, it is not a differentiator of CloudFabric 3.0, which focuses on wired data center networks.
References:
HCSA-Presales-IP Network Study Guide, Section: "CloudFabric 3.0 Key Features." Huawei CloudFabric Solution Documentation, Differentiators.

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