Question 1

Typical transport layer protocols include TCP and UDP. Which of the following is not a characteristic of TCP?

Accepted Answer

TCP (Transmission Control Protocol) is a connection-oriented protocol with several key characteristics:
Connectionless : This is not a characteristic of TCP. TCP establishes a connection before transmitting data using a three-way handshake.
Flow control and window mechanism : TCP uses flow control and sliding window mechanisms to manage data transmission rates and prevent buffer overflow.
Connection-oriented : TCP establishes, maintains, and terminates connections between endpoints.
Reliable transmission : TCP ensures reliable delivery of data through acknowledgments, retransmissions, and error detection.
UDP, not TCP, is a connectionless protocol. Therefore, the correct answer is A . References:
Huawei Transport Layer Protocols Overview, HCSA-Presales-IP Network Documentation.

Question 2

Which of the following Huawei products is best suited to defend against application-layer DDoS attacks?

Accepted Answer

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.

Question 3

Huawei iMaster NCE is a network automation and intelligence platform. Except for AI, which functions does Huawei iMaster NCE integrate?

Accepted Answer

HuaweiiMaster NCE(Network Cloud Engine) is an intelligent network automation platform that integratesmanagement, analysis, and controlcapabilities, but it
doesnot handle routing functions directly.
(A) Management – True: iMaster NCE provides centralizednetwork lifecycle management, including configuration, monitoring, and automation.
(B) Routing – False: Routing is handled by network devices like routers and switches, not by iMaster NCE itself.
(C) Analysis – True: The platform incorporatesbig data analyticsto provide network insights, fault prediction, and performance optimization.
(D) Control – True: iMaster NCE serves as anSDN controller, managing network policies, path selection, and automation.
Reference:HCSA-Presales-IP Network Official Study Guide, iMaster NCE Overview
Section

Question 4

Which of the following statements are TRUE about Huawei's wireless backhaul solution for rail transportation?

Accepted Answer

Comprehensive and Detailed in Depth

Question 5

The SD-WAN multi-fed and selective receiving technology applies only to 5G links.

Accepted Answer

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.
References:
HCSA-Presales-IP Network Study Guide, Section: "SD-WAN Multi-Fed and Selective Receiving Technology."
Huawei SD-WAN Solution Documentation, Link Aggregation and Optimization.

Question 6

The Adaptive Security Engine (ASE) is used to dynamically allocate CPU resources to service modules, maximizing resource utilization. In addition, componentbased function delivery is available.

Accepted Answer

Huawei'sAdaptive Security Engine (ASE)is a key feature in its security products, such as firewalls. ASE dynamically allocates CPU resources to different service
modules (e.g., firewall, intrusion prevention, antivirus) based on real-time traffic demands. This ensures optimal resource utilization and performance.Additionally,
ASE supportscomponent-based function delivery, allowing administrators to enable or disable specific security features as needed. This flexibility enhances
scalability and reduces unnecessary resource consumption.
The statement accurately describes the functionality of ASE, making itTRUE. References:
HCSA-Presales-IP Network Study Guide, Section: "Adaptive Security Engine Features." Huawei Security Product Documentation, ASE Overview.

Question 7

What are the three types of resources connected to the data center network?

Accepted Answer

In adata center network, three primary types of resources are connected: Storage:Includes storage arrays and systems that provide data persistence and retrieval
capabilities.
High-performance computing (HPC):Supports compute-intensive workloads like scientific simulations and AI training.
General-purpose computing:Handles everyday workloads such as web hosting, application servers, and virtual machines.
These resources are interconnected through the data center network, enabling seamless communication and resource sharing. Each type serves a distinct
purpose, catering to different application requirements.
References:
HCSA-Presales-IP Network Study Guide, Section: "Data Center Network Resources." Huawei Data Center Network Solution Documentation, Resource Types.

Question 8

As one of the important advantages of Huawei L3 autonomous driving solution, quick intelligent O&M improves network performance. Which options are the
capability of Huawei intelligent O&M to improve network performance?

Accepted Answer

Huawei'sL3 Autonomous Driving Network (ADN)solution leverages AI and automation to enhance network operations and maintenance (O&M). Key capabilities
include:
Precise fault analysis:Uses AI algorithms to identify root causes of faults quickly and accurately, reducing downtime.
Intelligent network optimization:Dynamically adjusts network parameters to optimize performance and resource utilization.
Real-time experience visualization:Provides a comprehensive view of network health and user experience, enabling proactive issue resolution.
These features collectively improve network performance, reduce operational complexity, and enhance user satisfaction.
References:
HCSA-Presales-IP Network Study Guide, Section: "Autonomous Driving Network Levels and Features."
Huawei ADN Solution Documentation, Intelligent O&M Capabilities.

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Question 9

Which of the following are involved in the evolution phases for a typical data center?

Accepted Answer

The evolution of atypical data centerinvolves several key phases, each addressing specific technological and operational advancements:
Virtualization:The first major phase, where physical resources are abstracted into virtual machines (VMs) to improve resource utilization and flexibility.
Centralized:Early data centers were centralized, with all resources located in a single facility for easier management.
Multi-site and multi-cloud:Modern data centers extend across multiple locations and integrate with public/private clouds for scalability and redundancy.
Distributed:Distributed architectures enable edge computing and decentralized processing, reducing latency and improving performance for geographically
dispersed users.
These phases reflect the progression from traditional, hardware-centric designs to modern, software-defined, and cloud-integrated infrastructures.
References:
HCSA-Presales-IP Network Study Guide, Section: "Data Center Evolution Phases." Huawei Data Center Solution Documentation, Evolution Trends.

Question 10

Which of the following switches does not support two power modules?

Accepted Answer

The Huawei CloudEngine S5735-L series switches are entry-level switches designed for small to medium-sized networks. These switches do not support dual
power modules , as they are intended for environments where redundancy is not a primary requirement.
In contrast:
The S5732-H, S5731-S24P4X, and S5736-S24T4XC switches all support dual power modules, providing redundancy and ensuring stable operation in more
demanding environments.
Thus, the switch that does not support two power modules is the S5735-L . References:
Huawei CloudEngine S5735-L Series Switch Hardware Guide, HCSA-Presales-IP Network Documentation.