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

Correct Answer:ABCD
The evolution of data centers has progressed through several distinct phases, driven by advancements in technology and changing business requirements. Below is an analysis of each phase:
Centralized : Early data centers were centralized, with all resources (servers, storage, and networking) located in a single physical location. This model was simple but lacked scalability and flexibility.
Multi-site and multi-cloud : Modern data centers often span multiple physical locations and integrate with public, private, and hybrid clouds. This phase emphasizes distributed architectures and cloud-native applications.
Distributed : As workloads grew, data centers evolved into distributed models, where resources are spread across multiple sites to improve redundancy, scalability, and performance.
Virtualization : Virtualization technologies enabled the abstraction of physical resources, allowing multiple virtual machines (VMs) or containers to run on a single physical server. This phase significantly improved resource utilization and flexibility.
All four options represent key phases in the evolution of data centers. References:
Huawei Data Center Network Evolution White Paper, HCSA-Presales-IP Network Documentation.

Which of the following security zones are preset on a firewall by default?

Correct Answer:ABCD
Huawei firewalls come preconfigured with several default security zones, each serving a specific purpose:
DMZ (Demilitarized Zone):A buffer zone between the internal network and external networks, often used to host public-facing servers like web servers.
Local:Represents the firewall itself. Traffic destined for the firewall (e.g., management traffic) is associated with this zone.
Untrust:Represents external, untrusted networks such as the Internet. Security policies typically restrict traffic from this zone.
Trust:Represents internal, trusted networks. Traffic within this zone is generally considered safe.
These zones form the foundation of firewall security policies, allowing administrators to control traffic flows between different parts of the network.
References:
HCSA-Presales-IP Network Study Guide, Section: "Firewall Security Zones and Policies." Huawei Firewall Product Documentation, Default Security Zones.

Which of the following statements is TRUE about AirEngine products?

Correct Answer:B
Huawei'sAirEngineseries includes a range of Wi-Fi 6 APs with varying capabilities: AirEngine 5762-12:Supports a maximum device rate of2.975 Gbps, not 1.775 Gbps, making option A incorrect.
AirEngine 6761-21:Supports a maximum device rate of3.55 Gbps, making option B correct. AirEngine 5762-12SW:Does support the leader AP feature, making option C incorrect. AirEngine 5761-11:Does not have 2.5GE ports, making option D incorrect.
TheAirEngine 6761-21stands out for its high performance, making it suitable for demanding environments like large enterprises and campuses.
References:
HCSA-Presales-IP Network Study Guide, Section: "AirEngine Series Performance Metrics." Huawei AirEngine Product Documentation, Device Rate Specifications.

A router forwards packets based on its routing table. To implement route-based packet forwarding, a router needs to obtain routes. Which of the following are common types of routes that a router can obtain?

Correct Answer:ACD
Arouterforwards packetsbased on its routing table, which contains different types of routes. Common types of routes include:
Dynamic route: Learned from routing protocols like OSPF, BGP, and RIP.
Direct route: Automatically generated when an interface is assigned an IP address. Static route: Manually configured by administrators to forward traffic to a specific destination.
A blackhole route (B)is not commonly used for forwarding but is instead a special type of route that discards traffic, preventing loops or attacks.
Reference:HCSA-Presales-IP Network Official Documentation – Routing Basics and Types of Routes

In Huawei's SD-WAN solution, the RR is a key node and does not participate in service traffic forwarding. However, if the RR fails, service traffic on the entire network will be interrupted. Therefore, the RR is typically deployed in redundancy mode.

Correct Answer:B
In Huawei's SD-WAN solution, the Route Reflector (RR) plays a critical role in distributing routing information across the network. However, the RR does not directly participate in service traffic forwarding. Its primary function is to facilitate efficient route exchange between SD-WAN nodes.
If the RR fails, it may temporarily disrupt the distribution of routing updates, but it will not interrupt service traffic on the entire network. Service traffic continues to flow through established paths until the RR is restored or redundancy mechanisms take effect.
To ensure high availability, the RR is often deployed in redundancy mode, but the claim that its failure will interrupt all service traffic is FALSE .
References:
Huawei SD-WAN Solution Architecture, HCSA-Presales-IP Network Documentation.

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

Correct Answer:D
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. References:
HCSA-Presales-IP Network V3.0 Training Material, Chapter 6: Switch Product Portfolio. Huawei Campus Switch Product Documentation.