Free Huawei H12-841_V1.5 Practice Exam with Questions & Answers

iMaster NCE-Campus adopts amulti-plane architectureto improve system security, scalability, and operational stability. The planes are logically isolated so that different types of traffic and functions do not interfere with each other. The two most commonly referenced planes are themanagement planeand theservice plane.

Themanagement planeis mainly responsible for system-level operations such as device registration, controller maintenance, system management, and internal communication between system components. For this purpose, it uses a dedicated access interface and port number to ensure secure and stable management connectivity.

Theservice plane, on the other hand, is designed fordaily network service operations. Administrators access this plane to perform tasks such as campus network planning, configuration delivery, monitoring, alarm viewing, and intelligent O&M operations. To keep service access independent and secure, the service plane uses its own dedicated login port.

According to HCIP Datacom Campus Network documentation, theservice plane of iMaster NCE-Campus uses port 18009. Administrators log in to the service plane by accessing the service IP address together with this port number. This separation ensures that service operations remain available even when management-plane functions are restricted or under maintenance.

Therefore, the correct port number for theservice planeis18009, making optionBthe correct answer.

Encapsulating Security Payload (ESP) is one of the core protocols of the IPsec framework and is widely used in Huawei campus and SD-WAN network solutions to provide secure data transmission. ESP operates directly over IP and is identified by a uniqueIP protocol number, which allows network devices to recognize and process ESP packets correctly.

According to HCIP Datacom Campus Network documentation and standard IP protocol definitions,ESP uses protocol number 50. ESP provides essential security services such as data confidentiality through encryption, data integrity verification, authentication, and anti-replay protection. It can operate in bothtransport modeandtunnel mode, making it suitable for scenarios such as site-to-site VPNs and remote access VPNs.

The other options listed are incorrect.Protocol number 47is used by GRE (Generic Routing Encapsulation), which is a tunneling protocol and does not provide encryption.Protocol number 51is assigned to AH (Authentication Header), another IPsec protocol that provides integrity and authentication but does not support encryption.Protocol number 102is not associated with ESP or commonly used IPsec-related protocols.

Correct identification of ESP traffic using protocol number 50 is critical for firewall configuration, security policy enforcement, and proper forwarding of encrypted traffic in campus and WAN environments. Therefore, the correct answer is50, which corresponds to optionB.

In the Huawei CloudCampus Solution for small- and medium-sized campus networks,AR series routersare commonly deployed asegress gatewaysto provide Internet access, WAN connectivity, and centralized management integration. According to HCIP Datacom Campus Network documentation, AR devices supportmultiple deployment and management modes, ensuring flexibility during initial deployment and ongoing operations.

It is correct that an AR functioning as an egress gateway supportsweb-based network management, which allows administrators to perform basic configuration through a graphical interface. AR devices also supportregistration center query, enabling zero-touch provisioning by automatically discovering and registering with iMaster NCE-Campus. In addition,DHCP Option 148-based deploymentis supported, allowing the AR to obtain controller address information dynamically and establish a management connection.

However, the statement becomes incorrect when it claims thatCLI-based deployment is not supported. In fact, AR routers fully supportCLI-based configuration and deployment, which remains a fundamental management method in Huawei network devices. CLI access is widely used for initial configuration, troubleshooting, advanced feature configuration, and scenarios where automated or graphical tools are not available.

HCIP Datacom documentation emphasizes that CloudCampus deployment modes areadditive, not mutually exclusive. Web-based management, registration center onboarding, DHCP Option 148, and CLI can all coexist, giving administrators flexibility to choose the most suitable method based on deployment conditions.

Therefore, since AR devicesdo support CLI-based deployment, the statement is incorrect, and the correct answer isFALSE.

In Huawei VXLAN implementations described in HCIP Datacom Campus Network documentation, the relationship between aVXLAN Network Identifier (VNI)and aBridge Domain (BD)is aone-to-one (1:1) mapping. Each BD represents a Layer 2 broadcast domain in the VXLAN overlay network, and each BD is uniquely identified by a single VNI.

The VNI is carried in the VXLAN header and is used by VTEPs to determine which virtual Layer 2 network the encapsulated traffic belongs to. When a packet is received, the VTEP decapsulates the VXLAN header and forwards the traffic to the corresponding BD based on the VNI value. Because of this mechanism, a single BD can only be associated with one VNI, and a VNI can only represent one BD.

This strict 1:1 mapping simplifies traffic forwarding, MAC address learning, and broadcast, unknown unicast, and multicast (BUM) traffic handling. It also ensures clear isolation between different virtual networks, which is essential for multi-tenant campus and data center environments. Allowing multiple BDs to map to one VNI or vice versa would break traffic isolation and complicate forwarding logic.

Therefore, Huawei VXLAN design enforces a one-to-one relationship between VNIs and BDs, making1:1the 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 the Huawei free mobility solution based on iMaster NCE-Campus,IP-security groupsare used to associate user identities with IP addresses so that consistent security policies can be enforced regardless of user location. Apolicy enforcement point (PEP)must obtain IP-security group entries to correctly match traffic against security policies.

When the policy enforcement pointis not an authentication point, it cannot directly learn user identity information during access authentication. In this scenario, one supported method is to configureIP-security group entry subscriptionon iMaster NCE-Campus. After subscription is configured, iMaster NCE-Campus pushes the corresponding IP-security group entries to the policy enforcement point, which matches option A.

Another valid approach in this case is described in option B. If the authentication point and policy enforcement point are separate devices, theauthentication point can push IP-security group entriesto the policy enforcement point after successful user authentication. This ensures that enforcement devices receive real-time identity information.

If the policy enforcement pointalso functions as an authentication point, it can directly interact with iMaster NCE-Campus. In this scenario, iMaster NCE-Campusproactively pushes IP-security group entriesto the device, as stated in option C.

Option D is incorrect because iMaster NCE-Campus does not push IP-security group entries indiscriminately in all scenarios. The distribution mechanism depends on the role of the device and whether subscription or authentication-based pushing is configured.

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

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.

VXLAN uses theVXLAN Network Identifier (VNI)to identify and isolate virtual Layer 2 or Layer 3 networks in an overlay environment. The VNI field is24 bits long, which allows a theoretical maximum of2²⁴ (approximately 16 million) VNIs. This is a significant improvement over traditional VLAN technology, which supports only 4094 VLAN IDs, and is one of the main reasons VXLAN is adopted in large-scale campus and data center networks.

It is correct thata tenant can be mapped to one or more VNIs. For example, a tenant may use multiple VNIs to represent different broadcast domains or service segments, such as separate VNIs for different subnets or application tiers. However, the statement becomes incorrect when it claims that VXLAN supports a maximum of12 million tenants.

VXLAN does not directly define a fixed maximum number of tenants. VNIs represent virtual networks, not tenants themselves. The actual number of tenants supported depends on how VNIs are allocated and how the network design maps tenants to VNIs. In theory, the upper limit of VNIs is close to 16 million, not 12 million, and the number of tenants is typically much lower and design-dependent.

Therefore, while the description of VNIs being 24 bits long is correct, the conclusion about supporting a maximum of 12 million tenants is incorrect, making the overall statement false.

In a virtualized campus network built with iMaster NCE-Campus,virtual networks (VNs)are designed to belogically isolated by default. This isolation is achieved through VXLAN and VPN instances, ensuring that users in different VNs cannot communicate unless explicit interconnection mechanisms are configured. While thepolicy control matrixis an important component of access control, it isnot sufficient by itselfto implement mutual access between users in different VNs.

According to HCIP Datacom Campus Network documentation, the policy control matrix is used to defineinter-group or inter-user access permissions, typically based onsecurity groups. It controls whether traffic is permitted, denied, or restricted between different user groups. However, the policy control matrix only definessecurity policy behaviorand does not establish Layer 3 connectivity between isolated virtual networks.

To enable mutual access between users in different VNs, the administrator must also configureinter-VN connectivity mechanisms, such asexternal networks,border nodes, orroute import and export policies. This includes enabling route exchange between VPN instances using BGP EVPN and configuring appropriate gateway or routing paths. Only after Layer 3 reachability is established can the policy control matrix take effect to permit or restrict traffic.

Therefore, deploying a policy control matrix alone does not meet the technical requirements for inter-VN communication. Bothconnectivity configuration and policy controlare required. Hence, the statement is incorrect, and the correct answer isFALSE.

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

In a Layer 2 VXLAN gateway, the MAC address table recordslocal and remote MAC addressesassociated with specific Bridge Domains (BDs) and outbound interfaces. Entries learned fromremote VTEPsare shown with an outbound interface that is aVXLAN tunnel endpoint IP address, such as10.3.3.3, indicating VXLAN-based learning.

StatementAis correct because both MAC addresses0000-0000-0010and5489-9893-48a3are associated withBD 10, meaning they are in the same Layer 2 broadcast domain.

StatementCis correct because MAC entries learned with an outbound interface displayed as an IP address representremote MAC addresses learned through the VXLAN tunnel.

StatementDis also correct. The MAC address5489-9893-48a3is learned from the local physical subinterfaceGE1/0/1.10, which belongs toBD 10, confirming local access.

StatementBis incorrect. Even though5489-982d-77e2is associated withGE1/0/1.20 (BD 20), hosts inBD 20 and BD 10 cannot communicate directly at Layer 2because they belong to different bridge domains.

Therefore, the correct answers areA, C, and D.