Free and Premium Huawei H12-841_V1.5 Dumps Questions Answers

Explanation (Concise and Technical)

Position 1 → 100This corresponds toVNI 100, which is associated with BD10 and is used for communication between PC1 and PC3.

Position 2 → 3.3.3.3This is theremote VTEP IP addressof VTEP3, configured as a head-end peer for VNI 100 on VTEP1.

Position 3 → 200This representsVNI 200, which is bound to BD20 and enables VXLAN communication between PC2 and PC4.

Position 4 → 1.1.1.1This is theremote VTEP IP addressof VTEP1, configured as a head-end peer for VNI 200 on VTEP2.

This mapping follows standardstatic VXLAN tunnel configuration logicon Huawei devices, where each VNI is explicitly associated with remote VTEP peer addresses using head-end peer-list.

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 large- and medium-sized Huawei campus network admission designs, it is common forPCs to be connected downstream of IP phones. In such scenarios, both the IP phone and the PC share the same physical access port on the switch, but they have different authentication and service requirements.

To support this deployment model, Huawei recommendsmulti-mode authentication. Multi-mode authentication allowsmultiple authentication methods to coexist on the same interface. Typically, the IP phone usesMAC address authenticationto quickly obtain voice service access, while the connected PC uses802.1X authenticationto obtain data network access. This ensures that voice and data services are securely and independently authenticated without requiring additional ports.

Portal authentication is mainly used for web-based access and is not suitable for chained device scenarios. Pure 802.1X or MAC authentication alone cannot meet the requirement because they do not support differentiated authentication for multiple terminals behind a single interface.

According to HCIP Datacom Campus Network admission control guidelines, multi-mode authentication is the correct solution for PCs connected to IP phones, making option A correct.

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

Huawei iMaster NCE-Campus supports advanced networking solutions tailored for industry-specific scenarios, including thefinancial SD-WAN SRv6 solution. This solution leverages Segment Routing over IPv6 (SRv6) to enable precise traffic steering, deterministic forwarding, and end-to-end service scheduling across the network.

Because SRv6 introduces enhanced forwarding capabilities and control-plane features beyond standard campus networking functions, Huawei licenses these capabilities separately. To activate SRv6-based financial SD-WAN features on iMaster NCE-Campus, customers must obtain theSRv6 function package license. Without this license, SRv6-specific orchestration, scheduling, and optimization functions cannot be enabled.

According to HCIP Datacom Campus Network documentation, licensing ensures controlled feature activation and aligns with Huawei’s modular service enablement strategy. Therefore, the statement is TRUE, and option A is correct.

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

In IPsec, bothAuthentication Header (AH)andEncapsulating Security Payload (ESP)are implemented as IP protocols and are identified by specificIP protocol numbersin the IP header. These protocol numbers allow receiving devices to determine how the packet payload should be processed.

The protocol number assigned toAH is 51. AH provides data origin authentication, data integrity, and anti-replay protection but does not offer encryption. When an IP packet contains AH, the protocol field in the IP header is set to 51 so that the receiver can correctly process the AH header.

The protocol number assigned toESP is 50. ESP provides data confidentiality through encryption and can also provide integrity and authentication. Packets protected by ESP use protocol number 50 in the IP header.

The other options are incorrect because protocol number6represents TCP and17represents UDP, which are transport-layer protocols rather than IPsec protocols. Protocol number57is unrelated to IPsec.

According to HCIP Datacom Campus Network documentation and standard IP protocol assignments, the correct protocol numbers are AH = 51 and ESP = 50, making option B the correct answer.

In HCIP Datacom Campus Network security design,port securityis used to limit the number of MAC addresses that can be learned on an access interface, preventing unauthorized device access and MAC address spoofing. When the number of learned MAC addresses reaches the configured upper limit, the switch behavior depends on the configuredviolation mode.

One possible action isshutdown mode, where the switch sets the interface to an error-down state and generates an alarm. This corresponds to option A. The interface must be manually or automatically recovered before normal communication can resume. This mode provides the highest level of security and clear fault notification.

Another supported behavior isprotect mode, in which the switch silently discards packets from unknown source MAC addresses after the limit is reached. No alarms are generated in this case, which matches option C. This mode minimizes network disruption while still blocking unauthorized devices.

Therestrict modeis also supported. In this mode, the switch discards packets with unknown source MAC addresses and generates an alarm or log entry, corresponding to option D. This allows administrators to detect violations without shutting down the interface.

Option B is incorrect because when an interface enters the error-down state due to a port security violation, an alarm or log notification is always generated according to HCIP Datacom Campus Network behavior. Therefore, the valid actions are A, C, and D.

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

IPsec VPN supports a variety ofsymmetric encryption algorithmsto protect data confidentiality during transmission. Commonly supported algorithms includeDES,3DES, andAES, all of which are used to encrypt the payload of IP packets in ESP.

AESis the most widely recommended algorithm due to its strong security and high performance.3DESandDESare legacy algorithms that are still supported for compatibility reasons, although they are considered less secure and are gradually being phased out in modern deployments.

DSA (Digital Signature Algorithm), however, isnot an encryption algorithm. It is an asymmetric algorithm used fordigital signatures and authentication, not for encrypting data. IPsec uses DSA only indirectly in certificate-based authentication scenarios, but it is never used as a data encryption algorithm in IPsec VPNs.

According to HCIP Datacom Campus Network documentation, IPsec VPN encryption relies exclusively on symmetric encryption algorithms such as DES, 3DES, and AES. Therefore,DSA is not supported as an IPsec encryption algorithm, makingoption Athe correct answer.

In a VXLAN BGP EVPN architecture,EVPN Type 5 routes, also known asIP Prefix routes, are used to advertiseLayer 3 reachability informationbetween VXLAN segments. These routes are essential for implementing inter-VNI communication and external network connectivity through distributed or centralized gateways.

According to HCIP Datacom Campus Network documentation, a Type 5 route carriesIP prefix information, including theIP prefix and its prefix length, allowing VTEPs to learn network-level routing information rather than host-level details. TheRoute Distinguisher (RD)is also included to ensure uniqueness of routes across different VPN instances, which is critical in multi-tenant environments. Additionally, thegateway IP addressis carried to identify the next-hop gateway responsible for forwarding traffic toward the advertised prefix.

Unlike EVPN Type 2 routes, which advertiseMAC address and optional host IP address information, Type 5 routes donotcarry MAC addresses. Type 5 routes operate purely at the Layer 3 level and are independent of Layer 2 forwarding. Their purpose is to exchange subnet-level routing information rather than endpoint-level details.

MAC addresses are only relevant for Layer 2 forwarding and ARP/ND suppression, which are functions of EVPN Type 2 routes. Including MAC information in Type 5 routes would be unnecessary and inefficient for Layer 3 routing purposes.

Therefore, the field that isnot carriedin a BGP EVPN Type 5 route is theMAC Address, making optionCthe correct answer.

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:

Huawei’s free mobility solution is based onsecurity group–based policy control. In this architecture, users are dynamically associated with security groups after authentication. These security group identifiers are thencarried in user trafficas metadata when packets traverse the campus network.

When traffic reaches apolicy enforcement device, such as an edge node or border node, the device does not rely on traditional attributes like IP address, MAC address, or port number to make forwarding decisions. Instead, it extracts thesource and destination security group informationembedded in the traffic and matches it against the security policy matrix configured on the controller.

This mechanism enables identity-based and location-independent access control. Even if a user moves to a different access point or changes an IP address, the same security policies continue to apply as long as the user remains in the same security group. This is the core advantage of free mobility in Huawei campus networks.

Port numbers, MAC addresses, and IP addresses are traditional Layer 2 and Layer 3 identifiers, but they do not provide sufficient context for identity-based policy enforcement. According to HCIP Datacom Campus Network documentation, security group information is the key attribute used for policy lookup and enforcement in free mobility solutions. Therefore, option A is correct.

In the Huawei CloudCampus Solution, the architecture is typically divided into themanagement layerand thenetwork layer. The management layer, represented by platforms such as iMaster NCE-Campus, is responsible for centralized configuration, monitoring, policy delivery, and intelligent O&M. Communication between these two layers relies on standardizedmanagement and control protocols.

NETCONFis a key protocol used between the management layer and network devices. It provides a structured and reliable mechanism for delivering configurations, querying device status, and performing automated service deployment. NETCONF works closely with data models to ensure consistency and accuracy in configuration management.

SNMPis also widely used in the CloudCampus Solution for monitoring and fault management. Through SNMP, network devices report performance data, alarms, and status information to the management platform, enabling real-time visibility and proactive maintenance.

YANGis not a transport protocol but a data modeling language; however, it plays a critical role in management-layer communication. YANG models define the structure of configuration and operational data exchanged between the controller and devices, typically carried over NETCONF. Therefore, YANG-related information is effectively exchanged between the management and network layers.

RADIUS, on the other hand, is used for user authentication, authorization, and accounting. It operates between network devices and authentication servers, not between the management layer and the network layer.

Thus, the correct options areNETCONF, SNMP, and YANG.

The delivered configuration clearly indicates that aVPN instancenamedMKThas been created and bound to a VXLAN identifier. In Huawei virtualized campus networks that useVXLAN + BGP EVPN, aVN (Virtual Network)configured on iMaster NCE-Campus is typically instantiated on devices as anip vpn-instance. This VPN instance represents the logical tenant or virtual routing domain used for service isolation.

Several key lines confirm this mapping. The commandip vpn-instance MKTis the core object created for a VN. Theroute-distinguisher (RD)is configured to ensure route uniqueness for that VPN instance. The presence ofvpn-target import/export extcommunityandvpn-target … evpnshows that routes are controlled and exchanged using BGP extended communities, including EVPN-related RTs for VXLAN EVPN route import/export. This is exactly what iMaster NCE-Campus generates when a VN is created and needs to participate in EVPN route distribution.

Finally, vxlan vni 6 binds the VPN instance to a VNI, which is how VXLAN identifies and separates virtualized networks. Creating a fabric or external network would not directly generate an ip vpn-instance with RD/RTs and a VNI binding. Therefore, the administrator operation was to create a VN named MKT.

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

To deploy802.1X authenticationon Huawei campus switches and use aRADIUS serverfor user authentication and authorization, several core configuration components are mandatory. All four options listed are required for a complete and functional deployment.

Anauthentication domainis mandatory because it defines where user authentication requests are processed and which AAA schemes are used. Without a domain, the switch cannot determine how to handle authentication requests, makingoption A mandatory.

Anauthentication profileis also required. This profile binds authentication methods (such as 802.1X), authentication domains, and access policies together. Interfaces reference the authentication profile to determine how users are authenticated, sooption B is mandatory.

An802.1X access profiledefines detailed 802.1X parameters, such as authentication mode, reauthentication behavior, and client handling. This profile is bound to interfaces to enable 802.1X authentication on specific ports, makingoption C mandatory.

Finally, anAAA schemeis essential because it defines the authentication, authorization, and accounting methods used by the device, including RADIUS server configuration. Without an AAA scheme, the device cannot communicate with the RADIUS server or obtain user authorization information. Therefore,option D is mandatory.

According to HCIP Datacom Campus Network documentation, all four configuration steps are required to successfully enable 802.1X authentication with RADIUS-based access control.

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

In VXLAN-based networks, inter-subnet communication and external network access requireLayer 3 forwarding capabilities. ALayer 3 VXLAN gatewayperforms routing between different VXLAN segments (VNIs) and enables traffic to exit the VXLAN overlay toward traditional non-VXLAN networks.

The NVE interface is responsible only for VXLAN encapsulation and decapsulation and does not perform routing. VLANIF interfaces are used in traditional VLAN environments and do not provide VXLAN interworking. A Layer 2 VXLAN gateway supports bridging only and cannot route between subnets.

Therefore, the Layer 3 VXLAN gateway is the correct solution for inter-subnet communication and external access.

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

The Huawei CloudCampus Solution adopts afour-layer architecture, not a three-layer one. According to HCIP Datacom Campus Network documentation, the architecture consists of theterminal layer,network layer,management and control layer, andapplication layer.

Theterminal layerincludes user devices such as PCs, mobile terminals, IoT devices, and other endpoints that access the campus network. Thenetwork layeris responsible for data forwarding and includes access, aggregation, and core network devices. Themanagement and control layer, represented by platforms such as iMaster NCE-Campus, provides centralized management, automation, policy control, and orchestration. Theapplication layerdelivers value-added services and business applications.

Because the terminal layer is an essential and explicitly defined component of the CloudCampus architecture, stating that the solution has only three layers is incorrect. Therefore, the statement isFALSE, making optionBthe correct answer.

In the Huawei CloudCampus Solution, access points can operate in different modes depending on network size, architecture, and management requirements. For asmall- or medium-sized campus networkwhere asingle AP is used as the network egressand must becentrally managed by iMaster NCE-Campus, the recommended operating mode isCloud mode.

When an AP works inCloud mode, it establishes a direct management connection with iMaster NCE-Campus through the cloud. The AP can independently provide wireless access services while also performing gateway and egress functions, such as user traffic forwarding and policy enforcement. This eliminates the need to deploy a dedicated wireless AC or additional gateway devices, significantly simplifying network architecture and reducing deployment cost.

Fit modeAPs rely on a local or centralized AC for control and therefore cannot independently function as a network egress.RU modeis used only in Agile Distributed Wi-Fi scenarios and depends on a central AP, making it unsuitable for this scenario.Fat modeAPs can operate independently but lack deep integration with iMaster NCE-Campus for cloud-based centralized management and automated service provisioning.

HCIP Datacom Campus Network documentation highlights Cloud APs as the optimal choice for small and medium campuses that require simplified deployment, cloud-based management, and integrated gateway capabilities. Therefore, to meet both the management and egress requirements described, the AP should operate inCloud mode.

Hence, the correct answer isC.

In iMaster NCE-Campus, device management functions are tightly integrated with secure remote access mechanisms to ensure safe and efficient O&M operations. One such mechanism is theSSH proxy tunnel, which allows administrators to remotely access managed devices through the controller without directly exposing device management interfaces to the external network.

According to HCIP Datacom Campus Network documentation, theSSH proxy tunnel is automatically established when the Command Line function is usedon the Device Management page. When an administrator clicks theCommand Lineoption, iMaster NCE-Campus dynamically builds a secure SSH proxy channel between the controller and the target device. This enables real-time CLI access to the device through the web interface while maintaining strict security controls.

Other functions such asSummary,Entry Query, andDevice Configurationdo not require direct CLI interaction with the device. These functions rely on management protocols and configuration delivery mechanisms such as NETCONF or telemetry, and therefore do not trigger the establishment of an SSH proxy tunnel.

The Command Line function is specifically designed for scenarios such as advanced troubleshooting, manual verification, or executing device-level commands. Automatically enabling the SSH proxy tunnel at this moment ensures that CLI access is bothsecure and on-demand, reducing attack surfaces and simplifying remote maintenance.

Therefore, the function that automatically enables the SSH proxy tunnel isCommand Line, making optionDthe correct answer.

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

Dynamic VLAN authorization allows edge devices to dynamically assign users to specific VLANs based on authentication results. This mechanism is widely used to guide user traffic into the correct VN in a CloudCampus virtualized campus network.

Forwired users, bothMAC address authenticationand802.1X authenticationsupport dynamic VLAN assignment. Once authentication succeeds, the authentication server delivers authorization VLAN information to the edge node, and users are placed into the corresponding VLANs. Therefore, statementsCandDare correct.

Forwireless users,802.1X authenticationalso supports dynamic VLAN authorization, making statementBcorrect. However,Portal authentication for wireless users does not support dynamic VLAN assignmentin CloudCampus networks. Wireless Portal authentication typically controls access rights rather than VLAN placement.

According to HCIP Datacom Campus Network documentation, statement A is false, making it the 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 authentication architecture, anauthentication profiledefines how users are authenticated and which domain is used during authentication. A key concept is theforcible domain, which has the highest priority during domain selection. If a forcible domain is configured, the device ignores any domain information carried in the user name and forcibly authenticates the user in the specified domain. Therefore, statementD is correct.

Statement A is incorrect because the default domaincan be modifiedusing CLI commands, allowing administrators to flexibly control user authentication behavior. Statement B is also incorrect; on the same interface, different authentication types (such as 802.1X, MAC authentication, and Portal)can be configured with different domains, depending on access control requirements.

Statement C is incorrect because the default authentication triggering sequence on Huawei devices is802.1X → MAC address authentication → Portal authentication, not the order described. This sequence ensures strong authentication is attempted first before falling back to weaker mechanisms.

According to HCIP Datacom Campus Network documentation, forcible domain configuration guarantees unified policy enforcement and simplifies authentication control, making option D the only correct statement.

In a VXLAN-based virtualized campus network, planning is divided intounderlay,fabric, andoverlaylayers, each with clear responsibilities:

Fabric Design → Border Node DesignFabric design focuses on the VXLAN fabric structure and roles of fabric nodes.Border nodesare a core part of the fabric, responsible for VXLAN encapsulation/decapsulation, policy enforcement, and traffic exit/entry between the VXLAN fabric and external networks. Therefore, Border Node Design belongs to Fabric Design.

Overlay Network Design → VN Access DesignVN Access Design defines how users and terminals access different Virtual Networks (VNs), including VLAN-to-VN mapping and authentication-based access. These are overlay-layer service constructs.

Overlay Network Design → VN Interwork DesignVN Interwork Design focuses on communication between different VNs (for example, inter-VN routing and security group policy control), which is a classic overlay function.

Overlay Network Design → External Network DesignExternal Network Design defines how overlay VNs communicate with non-VXLAN external networks, which is also an overlay service behavior implemented through border nodes.

This mapping strictly follows Huawei HCIP Datacom Campus Network VXLAN planning methodology.

According to HCIP Datacom Campus Network architecture principles, campus networks can be classified from multiple dimensions to support scientific planning, design, and deployment. These classification methods help network designers select appropriate architectures, devices, and technologies based on actual service requirements.

Network scaleis a primary classification dimension. Campus networks are commonly divided into small, medium, and large-scale networks based on the number of users, terminals, access points, and network devices. This classification directly influences topology design, such as whether a simple two-layer architecture or a more scalable three-layer architecture is required.

Served objectsis another important classification method. Campus networks may serve office users, guests, teaching staff, students, production terminals, IoT devices, or video surveillance systems. Different served objects have different requirements for bandwidth, security, and access control, making this dimension critical for policy and service design.

Access moderefers to how users and devices connect to the campus network, including wired access, wireless access, or a hybrid of both. This classification impacts WLAN planning, authentication methods, and network access control strategies.

Service complexityreflects the types and number of services carried by the network. A campus network may provide basic data services or support complex services such as voice, video, cloud access, and industry applications. Higher service complexity requires more advanced network design and management capabilities.

Therefore, all listed options are valid classification methods for campus networks.

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

In anasymmetric IRB (Integrated Routing and Bridging)VXLAN forwarding model, Layer 2 forwarding and Layer 3 routing occur ondifferent VTEPs. When PC1 sends traffic to PC2, the packet is first forwarded to thelocal gateway (VBDIF interface)on VTEP1 for Layer 3 routing.

After routing is performed, VTEP1 encapsulates the packet into a VXLAN packet and forwards it to VTEP2. Importantly, theoriginal data frame inside the VXLAN packethas already been rewritten after routing. The destination MAC address in the original Ethernet frame is no longer the MAC address of PC2, but theMAC address of the next-hop gateway on the remote VTEP.

In the figure, this next-hop MAC address isMAC C, which belongs to the VBDIF interface on VTEP2. MAC D (PC2’s MAC address) is only used after the packet is decapsulated and forwarded locally by VTEP2.

According to HCIP Datacom Campus Network VXLAN forwarding behavior, the correct destination MAC address of the original data frame sent from VTEP1 to VTEP2 isMAC C, making optionCcorrect.

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

In a CloudCampus VXLAN fabric, theglobal resource poolcentrally manages identifiers such as VLANs, VNIs, and bridge domains to ensure consistent allocation across the fabric.

StatementAis correct because abridge domain (BD)is the VXLAN equivalent of a VLAN and represents a Layer 2 broadcast domain used for packet forwarding within a VXLAN network.

StatementCis also correct. AVXLAN Network Identifier (VNI)uniquely identifies a VXLAN segment and is a core VXLAN forwarding identifier.

StatementDis correct because theservice VLAN poolis used to allocate VLANs for multiple purposes, including external gateway interconnections, network service resource interconnections, policy association management, and VN access VLANs.

StatementBis false. VLANs used forunderlay device interconnectionsarenot allocated from the VLAN resource poolmanaged by the VXLAN fabric. Underlay VLANs belong to the traditional IP underlay network and are typically planned and configured independently. The VLAN resource pool is intended for overlay-related services and fabric-managed VLAN usage only.

Therefore, the incorrect statement isB.

Huawei’s free mobility solution is designed to provide consistent user access control and policy enforcement across the campus network, regardless of user location. According to HCIP Datacom Campus Network documentation, the solution is built around severalclearly defined core roles, each with specific responsibilities.

Theauthentication deviceis a core role. It performs user authentication using methods such as 802.1X, MAC authentication, or portal authentication, and associates user identity information with IP addresses or security groups.

Thepolicy enforcement deviceis also a core role. It enforces security and access control policies based on IP-security group information, ensuring that traffic complies with defined policies wherever the user is connected.

iMaster NCE-Campusis another core component of the free mobility solution. It acts as the centralized management and control platform, responsible for policy definition, IP-security group management, and coordination of information distribution between authentication points and policy enforcement points.

Thepolicy control device, however, isnot a core roleexplicitly defined in Huawei’s free mobility architecture. Policy control functions are integrated into iMaster NCE-Campus rather than implemented as a separate standalone device role. Therefore, “policy control device” is not recognized as a core role in the free mobility solution.

As a result, option B is the correct answer, while the other options represent essential components of Huawei’s free mobility solution as defined in HCIP Datacom Campus Network materials.

In a VXLAN BGP EVPN network, different EVPN route types are used to advertise specific kinds of control-plane information.BGP EVPN Type 2 routes, also known asMAC/IP Advertisement routes, are primarily used to advertise Layer 2 and host-level Layer 3 reachability information between VTEPs.

According to HCIP Datacom Campus Network documentation, a Type 2 route carriesMAC address information, and it can optionally carry ahost IP addressassociated with that MAC. This enables efficient MAC learning and ARP suppression within the VXLAN fabric. TheL2VNIis also included in Type 2 routes, as it identifies the Layer 2 broadcast domain to which the MAC and IP information belongs.

TheL3VNIis not used to identify a Layer 2 broadcast domain but is associated with Layer 3 VPN forwarding and inter-VNI routing. While L3VNI information is relevant in EVPN-based Layer 3 services, it is not the primary identifier in a Type 2 route. However, the key distinction in this question lies in the difference between host routes and prefix routes.

AnIP prefixrepresents a network segment rather than a single host and is advertised usingEVPN Type 5 (IP Prefix) routes, not Type 2 routes. Type 2 routes only carry host IP addresses, not IP prefixes. Therefore,IP Prefixis not carried in a BGP EVPN Type 2 route, making optionCthe correct answer.

1 →dh group1

2 →main

3 →esp

4 →tunnel

In the IKE proposal, the Diffie-Hellman group defines the key exchange strength used during IKE Phase 1 negotiation, which is whydh group1corresponds to position 1 under the IKE proposal configuration. Theexchange-mode mainsetting is part of IKEv1 Phase 1 and therefore correctly matches position 2 under the IKE peer configuration.

For the IPsec proposal, thetransformspecifies the protocol used to protect data traffic; since ESP is explicitly required,espcorrectly maps to position 3. Finally, theencapsulation-mode tunneldefines how packets are encapsulated in IPsec VPNs between gateways, makingtunnelthe correct match for position 4.

This mapping strictly follows HCIP Datacom Campus Network IPsec and IKE configuration logic and aligns with standard Huawei VRP command behavior.

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

In a CloudCampus virtualized campus network,Virtual Networks (VNs)provide service isolation, whilesecurity groupsenable identity-based access control. Even when inter-VN routing is technically available, communication between users in different VNs isnot permitted by default. Access permissions are controlled bysecurity group–based policies.

To allowR&D personnel and sales personnelto communicate, the network administrator must explicitly define thesecurity policy relationshipbetween the two security groups. This is achieved by deploying apolicy control matrixon iMaster NCE-Campus. The policy control matrix specifies whether traffic between source and destination security groups is allowed or denied and enforces the policy on relevant network devices.

Deploying an external network is unnecessary because communication is required within the campus network. Configuring access management relates to authentication and authorization during network access, not inter-group communication control. Configuring inter-VN communication enables routing capability but does not definewhethercommunication is permitted at the security policy level.

According to HCIP Datacom Campus Network documentation,security group communication permissions are controlled through the policy control matrix, making optionAthe correct task to meet the requirement.

iMaster NCE-Campus adopts a flexiblemulti-plane networking architectureto meet different deployment scale and reliability requirements. According to HCIP Datacom Campus Network documentation, iMaster NCE-Campus supports bothsingle-plane networkingandmulti-plane networking, and the selection depends on the system deployment mode.

In asingle-node system deployment, all functional components of iMaster NCE-Campus run on a single node. In this scenario,single-plane networking is optionaland can be used to simplify network planning and reduce deployment complexity. Management traffic, service traffic, and internal communication share the same network plane, which is sufficient for small-scale or test environments where high availability and strict isolation are not mandatory.

However, inmulti-node or cluster deployments, iMaster NCE-Campus requiresmulti-plane networking. Different network planes—such as management plane, service plane, and internal communication plane—are deployed separately to ensure high availability, scalability, performance isolation, and security. Single-plane networking isnot supportedin these deployments because it cannot meet the reliability and performance requirements of clustered systems.

This design ensures that large-scale campus networks benefit from fault isolation and load separation, while smaller deployments can use a simplified architecture. Therefore, the statement that single-plane networking is optional only in single-node system deployment is consistent with HCIP Datacom Campus Network design principles.

Hence, the correct answer isTRUE.

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

Authentication Header (AH) is one of the core IPsec security protocols and is designed to provideauthentication and integrity protectionfor IP packets. AH ensures that the received packet is from a legitimate sender and that the packet has not been altered during transmission.

AH supportsdata origin authenticationby verifying the identity of the sender using cryptographic algorithms. It also providesdata integrity checking, ensuring that packet contents are not modified in transit. Additionally, AH supportsanti-replay protectionby using sequence numbers to prevent attackers from capturing and retransmitting valid packets.

However, AHdoes not provide data encryption. All packet contents, including payload data, remain visible on the network. This limitation is inherent to the AH protocol design and is one of the main reasons ESP is more widely used in modern IPsec deployments.

According to HCIP Datacom Campus Network documentation, if confidentiality through encryption is required, ESP must be used instead of AH. Therefore, the function not supported by AH is data encryption, making option D the correct answer.

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.

iMaster NCE-Campus supports multiple deployment modes to meet the needs of different enterprise customers, including on-premise deployment, MSP-owned cloud deployment, and Huawei public cloud deployment. The choice of deployment mode mainly depends on whether the customer wants to invest in infrastructure, manage the platform independently, or use a fully hosted service.

In this scenario, the supermarket chain explicitlydoes not want to purchase physical servers or software, which means an on-premise deployment is not suitable. On-premise mode requires customers to prepare hardware resources, install software, and maintain the system themselves. Similarly, an MSP-owned cloud deployment typically involves a managed service provider hosting the platform, which may still require contractual dependency on a third party and is not the most straightforward option for enterprises seeking minimal investment and simplified operations.

According to HCIP Datacom Campus Network documentation, theHuawei public cloud deploymentis recommended for customers who want acloud-based, subscription-oriented solution. In this mode, iMaster NCE-Campus is hosted and operated on Huawei Cloud. Customers only need to register and subscribe to the service, without purchasing servers, storage, or management software. Huawei is responsible for system maintenance, upgrades, security, and high availability.

This deployment model is especially suitable forretail chains and multi-branch enterprises, such as supermarkets, because it enables centralized management of geographically distributed branch networks with low initial investment and fast rollout.

Therefore, the recommended deployment mode in this case isHuawei public cloud, making optionCthe correct answer.