Pass the Huawei HCIP-Datacom H12-841_V1.5 Questions and answers with CertsForce

DHCP is a core protocol used in campus networks to automatically assign IP addresses and deliver network parameters to hosts, improving deployment efficiency and simplifying address management. DHCP messages include several fixed fields and anOptions field, which plays a critical role in parameter delivery.

Option A isfalse. Even if only gateway and DNS server information needs to be delivered to a client, the DHCP Offer messagemust carry the Options field. Default gateway and DNS server information are delivered through specific DHCP options, such as Option 3 (Router) and Option 6 (DNS Server). Without the Options field, these parameters cannot be conveyed to the client.

Option B is correct. The Options field in DHCP messages uses aTLV (Type-Length-Value)format, allowing flexible extension and supporting various network parameters, including NTP server addresses, wireless AC addresses, and log server addresses, which aligns with HCIP Datacom Campus Network descriptions.

Option C is also correct. DHCP supportsstatic IP address allocationby binding a specific IP address to a client’s MAC address. This is commonly used for printers, servers, or network devices that require fixed IP addresses.

Option D is correct as well. Because DHCP uses broadcast messages that cannot cross Layer 3 boundaries, aDHCP relay agentis required when the client and server reside on different IP networks.

Therefore, option A is the only incorrect statement.

In campus network design, theegressis a critical point that connects the internal campus network to external networks such as the Internet or WAN. According to HCIP Datacom Campus Network architecture guidelines, ensuringhigh reliability at the egressis essential, even for small- and medium-sized campus networks, because external connectivity directly affects business continuity.

Deployingmulti-carrier linksat the egress is a recommended design practice to enhance reliability. Multi-carrier links refer to connecting the campus network todifferent service providersor independent external links. If one carrier experiences a failure, congestion, or maintenance issue, traffic can be switched to the backup carrier, ensuring uninterrupted external access. This approach significantly reduces the risk of service disruption caused by single-link or single-carrier failures.

For small- and medium-sized campuses, full redundancy with complex architectures may not be cost-effective. Multi-carrier backup links provide acost-efficient and practical solutionthat balances reliability and investment. Technologies such as static route backup, dynamic routing protocols, or policy-based routing can be used to implement automatic failover at the egress.

HCIP Datacom documentation emphasizes that egress reliability is not only a concern for large networks. Even smaller campuses require stable Internet and WAN access for cloud services, remote access, and centralized management platforms. Therefore, deploying multi-carrier links as backup at the egress is a valid and recommended design strategy.

Hence, the statement isTRUE.

Comprehensive and Detailed 200 to 250 words of Explanation From HCIP Datacom Campus Network documents knowledge without any URL or Links:

IPsec defines two standard encapsulation modes that determine how IP packets are protected during transmission:Tunnel modeandTransport mode. Tunnel mode encapsulates the entire original IP packet within a new IP header and is typically used forsite-to-site VPNs. Transport mode encrypts only the payload of the IP packet and is commonly used forhost-to-host communication.

Switching mode and routing mode are not valid IPsec encapsulation modes and are unrelated to IPsec protocol behavior.

According to HCIP Datacom Campus Network documentation, onlyTunnel mode and Transport modeare supported in IPsec, makingoptions B and C correct.

In a Huawei virtualized campus network managed byiMaster NCE-Campus,Fit APs do not go online immediatelyafter being added to the management platform. According to HCIP Datacom Campus Network documentation, Fit APs depend on awireless access controller (AC)for control, configuration delivery, and service provisioning. Simply adding a Fit AP to iMaster NCE-Campus only completes thedevice registration step, not the full service enablement process.

After a Fit AP is added, several additional steps are required before it can go online and provide wireless services. First, the AP must successfullydiscover and establish a control tunnel with the AC. Then, the AP typically needs to beapproved, assigned to a site, and bound to the correctAP group. Configuration data such as radio parameters, SSIDs, security policies, and authentication profiles must also be delivered from the AC to the AP.

In addition, firmware version checks or upgrades may occur during the onboarding process to ensure compatibility with the controller and management platform. Only after these steps are completed can the Fit AP enter thenormal online stateand start providing WLAN services.

This multi-step process ensures centralized control, consistent configuration, and reliable operation across large-scale campus networks, but it also means Fit APs cannot immediately go online upon being added to iMaster NCE-Campus.

Therefore, the statement is incorrect, and the correct answer isFALSE.

Comprehensive and Detailed Explanation (200–250 words):

In an iMaster NCE-Campus policy control matrix, rows representsource security groupsand columns representdestination security groups. A green check mark indicates that communication is allowed, while a red cross indicates that communication is denied. This matrix enables fine-grained user access control in VXLAN-based virtualized campus networks.

From the figure, communication betweenGuest_Group and Research_Groupis explicitly denied in both directions, as indicated by red crosses. Therefore, statementsAandDare both correct. The matrix also shows a green check mark forSales_Group communicating with itself, meaning intra-group communication is permitted, makingstatement B correct.

Theunknowngroup represents users that are not classified into Guest_Group, Research_Group, or Sales_Group. In the matrix, the unknown group is not completely blocked from all resources by default; access behavior depends on explicit policy configuration. Since the figure does not indicate a universal deny policy for unknown users toward all destinations,statement C is incorrect.

According to HCIP Datacom Campus Network policy control design, security group–based access control allows administrators to precisely define which user groups can communicate, improving security and service isolation. Hence, the correct answers areA, B, and D.

iMaster NCE-CampusInsight is anintelligent O&M analysis componentin Huawei’s CloudCampus Solution, designed to provide deep visibility, experience assurance, and fault diagnosis based onreal service traffic and user behavior. The statement is incorrect because CampusInsight doesnot rely on SNMP technologyto achieve its core capabilities.

According to HCIP Datacom Campus Network documentation, traditional SNMP is mainly used for basic device monitoring, such as interface status, CPU usage, memory usage, and simple alarms. SNMP focuses ondevice-level metricsand does not provide sufficient granularity to analyze application performance, user experience, or end-to-end service paths.

In contrast, iMaster NCE-CampusInsight usestelemetry, traffic sampling, flow analysis, and packet-level inspection technologiesto collect real-time and fine-grained data directly from network devices. These technologies allow CampusInsight to analyzeactual service traffic, identify application behavior, locate faults across the network path, and proactively detect network exceptions that affect user experience.

CampusInsight correlates data such as flow information, latency, packet loss, and service reachability to perform intelligent analysis and root cause identification. This enables capabilities like application experience assurance, abnormal traffic detection, and proactive fault prediction, which are beyond the scope of SNMP-based monitoring.

Therefore, because iMaster NCE-CampusInsight does not use SNMP as its primary data collection method and instead relies on advanced telemetry and traffic analysis technologies, the statement isFALSE.

Comprehensive and Detailed 200 to 250 words of Explanation From HCIP Datacom Campus Network documents knowledge without any URL or Links:

CloudCampus virtualized campus networks support multiplefabric egress modesto connect VXLAN fabrics to external networks. These modes determine how traffic exits the fabric and whether egress resources are shared among multiple virtual networks.

Layer 3 shared egressallows multiple VNs to share the same Layer 3 egress interface, improving resource utilization and simplifying external connectivity.Layer 3 exclusive egressdedicates an independent Layer 3 interface to a specific VN, providing stronger isolation and higher security.

Layer 2 shared egressenables multiple VNs to access an external Layer 2 network through a shared interface. This mode is commonly used when the external network does not support Layer 3 integration.

Layer 2 exclusive egressis not supported in the CloudCampus solution because Layer 2 resources are typically designed to be shared to optimize scalability and simplify deployment.

Therefore, the correct answers are A, C, and D.

In a virtualized campus network managed byiMaster NCE-Campus, traffic control between users or user groups is implemented throughsecurity groupsand apolicy control matrix. The configuration shown clearly reflects this mechanism.

The ACL usesucl-group names, such asResearch_Group,Sales_Group, andGuest_Group. These ucl-groups correspond tosecurity groupsdefined on iMaster NCE-Campus. The ACL rules explicitly permit IP traffic from one security group to other security groups. This type of ACL is automatically generated and delivered by the controller when apolicy control matrixis deployed.

A policy control matrix defineswho can access whomby specifying allow or deny relationships between security groups. Once the matrix is configured on iMaster NCE-Campus, the controller translates these logical policies into device-level ACLs and applies them to the appropriate enforcement points in the VXLAN fabric. The presence of multiple rules permitting traffic from one group to multiple destination groups is a typical outcome of deploying such a matrix.

Creating a security group alone would not generate ACL rules. Deploying inter-VN communication would involve route exchange or gateway configuration, not ucl-group–based ACLs. Creating an authorization result would associate users with security groups but would not generate inter-group ACL rules.

Therefore, the administrator operation that resulted in this configuration wasdeploying a policy control matrix, making optionAthe correct answer.

Comprehensive and Detailed 200 to 250 words of Explanation From HCIP Datacom Campus Network documents knowledge without any URL or Links:

In Huawei campus access authentication designs, network access is divided intopre-authentication,isolation, andpost-authenticationdomains to control user access at different stages of authentication.

Thepre-authentication domainprovides users with only the most basic network services required to initiate authentication. These services typically includeDHCPandDNS. DHCP allows unauthenticated terminals to obtain IP addresses and basic network parameters, while DNS enables domain name resolution so that users can reach authentication portals or admission servers. Therefore,DHCP and DNS servers are essential components of the pre-authentication domain, making optionsC and D correct.

AnFTP serveris a general-purpose file transfer service and is not required for user authentication. Anantivirus serverbelongs to theisolation domain, where users are redirected if authentication fails or if their devices do not meet security posture requirements, such as outdated virus signatures. These servers provide remediation resources but are not part of the pre-authentication process.

According to HCIP Datacom Campus Network documentation, limiting the pre-authentication domain to only essential services reduces security risks while ensuring successful user onboarding.

In a VXLAN-based campus or data center network, different node roles are defined to ensure proper traffic forwarding between traditional networks, the VXLAN overlay, and external networks. According to HCIP Datacom Campus Network documentation,edge nodes(also known as VTEPs) are responsible for encapsulating and decapsulating traffic between traditional Layer 2 or Layer 3 networks and the VXLAN overlay network. This allows legacy networks to communicate with virtualized VXLAN segments.

However, when traffic needs to leave the VXLAN fabric and accessexternal networks, such as a WAN, Internet, or another non-VXLAN domain, theborder nodeis used. The border node sits at the boundary of the VXLAN fabric and provides interconnection between the VXLAN network and external routing domains. It performs functions such as VXLAN termination, route advertisement, and traffic forwarding between overlay and underlay or external networks.

In BGP EVPN-based VXLAN deployments, the border node typically participates in BGP routing to exchange reachability information with external devices, ensuring seamless communication between VXLAN tenants and outside networks. This architectural separation improves scalability, simplifies network design, and enhances control over traffic entering or leaving the VXLAN fabric. Therefore, the correct node through which a VXLAN network accesses an external network is theBordernode.