H12-841_V1.5 Free Certification Exam Easy to Download PDF Format 2026
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NEW QUESTION # 123
In an MPLS VPN network, when a CE device advertises a local route to a PE device, which of the following conditions is NOT a necessary condition for the PE device to include the route in the corresponding VPN instance?
- A. The PE device interface is bound to the corresponding VPN instance.
- B. The routing protocol between CE and PE has been established normally (e.g., BGP Neighbor Up).
- C. The routing protocol configuration has specified that routes advertised by CE be imported into the VPN instance.
- D. The MPLS LDP protocol is already enabled on the PE device.
Answer: D
NEW QUESTION # 124
In wide area network link load balancing scenarios, which of the following load sharing methods does Huawei SD-WAN solution typically employ?
- A. Allocate traffic based solely on link latency, ignoring bandwidth.
- B. Only use a single link, with other links used as cold backups.
- C. Randomly allocate traffic to any link
- D. Traffic sharing based on bandwidth ratio (e.g., 7:3 allocation)
Answer: D
NEW QUESTION # 125
(iMaster NCE-Campus has multiple networking planes. The single-plane networking is optional only in single-node system deployment.)
- A. FALSE
- B. TRUE
Answer: B
Explanation:
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.
NEW QUESTION # 126
In the WAN BGP protocol, if "EBGP neighbors are not configured with neighbor relationships and can only be reached through static routes", which of the following problems will this cause?
- A. Automatically discover EBGP neighbors and establish relationships
- B. BGP neighbor relationships are established normally and routes can be passed.
- C. BGP neighbor relationships are established but routes cannot be passed.
- D. BGP neighbor relationships cannot be established (neighbor IPs need to be manually configured).
Answer: D
NEW QUESTION # 127
In a wide area network (WAN) OSPF deployment, when a non-backbone area (such as Area 1) is not directly connected to the backbone area (Area 0), which of the following technologies needs to be deployed to solve the routing connectivity problem?
- A. OSPF route aggregation
- B. OSPF Certification
- C. OSPF Virtual Link
- D. OSPF NSSA area
Answer: C
NEW QUESTION # 128
(Based on the VXLAN tunnel creation mode, what are the different types of VXLAN tunnels?)
- A. Stateless VXLAN tunnel
- B. Static VXLAN tunnel
- C. Stateful VXLAN tunnel
- D. Dynamic VXLAN tunnel
Answer: B,D
Explanation:
In HCIP Datacom Campus Network VXLAN architecture, VXLAN tunnels are classified based onhow the tunnel endpoints are created and maintained, which is referred to as the VXLAN tunnel creation mode.
According to Huawei VXLAN design principles, there aretwo valid VXLAN tunnel types: static VXLAN tunnels and dynamic VXLAN tunnels.
Astatic VXLAN tunnelis manually configured by an administrator. In this mode, the source VTEP IP address, destination VTEP IP address, and related parameters are explicitly specified on devices. Static VXLAN tunnels are typically used in small-scale networks or test environments where the number of VTEPs is limited and network topology is simple. However, static configuration lacks scalability and flexibility, making it unsuitable for large campus fabrics.
Adynamic VXLAN tunnelis automatically created based on control-plane learning mechanisms, such asBGP EVPN. In this mode, VTEPs learn remote VTEP IP addresses dynamically through EVPN route advertisements (for example, Type 3 routes). When a remote VTEP becomes reachable at the underlay Layer
3 level, the VXLAN tunnel is automatically established without manual intervention. This mode is widely used in modern campus and data center networks due to its scalability and automation capabilities.
Options A and D are incorrect becausestatelessandstatefulare not official VXLAN tunnel creation classifications in Huawei's VXLAN implementation. VXLAN itself is an encapsulation mechanism, and tunnel state is not categorized in this manner.
Therefore, the correct VXLAN tunnel types based on creation mode arestatic VXLAN tunnels and dynamic VXLAN tunnels.
NEW QUESTION # 129
In an MPLS VPN network, which of the following configurations is a necessary condition for "PE devices and CE devices to exchange routes via OSPF"?
- A. Enable the OSPF protocol under the VPN instance on the PE device and establish a neighbor relationship with the CE device.
- B. Configure the OSPF protocol on the P device to transmit routes between the PE and CE.
- C. Enable the MPLS protocol on the CE device and support OSPF label forwarding.
- D. Disable the BGP VPNv4 address family on the PE device and use only OSPF.
Answer: A
NEW QUESTION # 130
In MPLS VPN network troubleshooting, if "the CE device cannot ping the remote CE device, but can ping the local PE device " , which of the following troubleshooting steps should be performed first?
- A. Check if the operating system of the CE device is running normally.
- B. Check if the CPU usage of the local PE device is too high.
- C. Check if an MPLS LSP has been established between the local PE device and the remote PE device.
- D. Check if the network card of the CE device is working properly.
Answer: C
NEW QUESTION # 131
(To isolate communication between wired terminals, you can enable port isolation on the access switches.
However, APs cannot implement wireless user isolation.)
- A. FALSE
- B. TRUE
Answer: A
Explanation:
Comprehensive and Detailed 200 to 250 words of Explanation From HCIP Datacom Campus Network documents knowledge without any URL or Links:
Port isolation is commonly used on access switches to preventwired terminalsfrom communicating directly with each other at Layer 2. This enhances security by blocking lateral attacks and unnecessary broadcast traffic.
Forwireless users, Huawei APs and WLAN controllers (or central APs in agile distributed scenarios) provide wireless user isolationmechanisms. Wireless user isolation prevents clients connected to the same SSID or AP from directly communicating with each other, even though they share the same wireless medium. This is widely used in guest networks, dormitories, and public WLAN environments.
Therefore, the statement that APs cannot implement wireless user isolation is incorrect. According to HCIP Datacom Campus Network WLAN design principles,wireless user isolation is fully supported by APs, either locally or under centralized control.
Hence, the statement is FALSE, and option B is correct.
NEW QUESTION # 132
In an MPLS VPN network, when a PE device forwards data packets to a CE device, if the PE device fails to remove the inner VPN label, which of the following problems will occur?
- A. The PE device automatically re-labels and then forwards the data.
- B. The P device is unable to forward data packets (missing public network label).
- C. Data packets are forwarded to the CE device normally, without affecting services.
- D. The CE device cannot recognize the tag and discards the data packet.
Answer: D
NEW QUESTION # 133
(When advertising routes, BGP EVPN uses EVPN Router's MAC Extended Community to carry the Router MAC field of a VTEP.)
- A. FALSE
- B. TRUE
Answer: A
Explanation:
In BGP EVPN-based VXLAN networks, route advertisement follows clearly defined standards regarding how endpoint and tunnel information is carried. According to HCIP Datacom Campus Network documentation, BGP EVPN does not use an EVPN Router MAC Extended Community to advertise the Router MAC of a VTEP. This statement is therefore incorrect.
In EVPN, different route types serve specific purposes. For example,EVPN Route Type 2 (MAC/IP Advertisement routes)are used to advertise MAC addresses (and optionally IP addresses) of endpoints. These routes associate endpoint information with a VTEP by using theBGP next-hop attribute, which contains the VTEP IP address. Similarly,EVPN Route Type 3 (Inclusive Multicast Ethernet Tag routes)also relies on the BGP next hop to identify the VTEP for VXLAN tunnel establishment and BUM traffic forwarding.
The Router MAC of a VTEP is alocal forwarding attribute, primarily used during VXLAN encapsulation and decapsulation on the device itself. It is not distributed through EVPN extended communities. While EVPN does define several extended communities for control and policy purposes, there is no standard or HCIP- defined "EVPN Router MAC Extended Community" used to carry the Router MAC field of a VTEP during route advertisement.
Therefore, based on HCIP Datacom Campus Network VXLAN EVPN principles, the statement is false.
NEW QUESTION # 134
(As shown in the following figure, R1 and R2 establish an IPsec VPN in ISAKMP mode for communication.
For IPsec proposals on R1 and R2, ESP is used, the encapsulation mode is set to tunnel mode, SHA1 is configured as the authentication algorithm, and AES-256 is configured as the encryption algorithm. In addition, IKEv1 is configured for IKE peers, the main mode is configured for IKEv1 negotiation phase 1, and the PSK Huawei@123 is configured for PSK authentication between IKE peers. For IKE proposals on R1 and R2, SHA1 is configured as the authentication algorithm, AES-256 is configured as the encryption algorithm, and DH group 1 is configured for IKE negotiation. Based on these configurations on R1 and R2, drag the configuration items on the left to the correct locations on the right.)
Answer:
Explanation:
Explanation:
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. The exchange-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.
NEW QUESTION # 135
In Huawei's SD-WAN solution, which of the following technologies can "enable branch equipment to automatically adapt to the new link without needing to re-adapt after changing network operators"?
- A. SD-WAN Link Adaptive Technology (Automatically identifies new links and loads preset policies)
- B. After changing carriers, delete the original configuration and start a new game.
- C. Only supports fixed carriers; link switching is not supported.
- D. Manually reconfigure the link parameters of the branch devices.
Answer: A
NEW QUESTION # 136
In Huawei's SD-WAN solution, which of the following security technologies can ensure the security of communication between branches and headquarters/cloud, preventing data leakage?
(Multiple choice)
- A. IPsec encrypted tunnel (encrypts transmitted data packets)
- B. Data is transmitted in plaintext, without encryption or authentication mechanisms.
- C. Turn off the firewall and allow all traffic to pass through .
- D. Application layer firewall (filters unauthorized application traffic, such as malicious attacks)
- E. Identity authentication (e.g., branch devices accessing the SD-WAN network via certificate authentication)
Answer: A,D,E
NEW QUESTION # 137
In the OSPF protocol for wide area networks, what is the main difference between a "full stub area" and a "normal stub area"?
- A. Fully stub regions receive only Type 1/2 LSAs, while ordinary stub regions receive Type 1/2/3 LSAs.
- B. A fully stub region is no different from a regular stub region, only the configuration is different.
- C. Fully stub areas do not receive Type 3 LSAs (Inter-area summary routes), while regular stub areas do.
- D. Fully stub areas receive Type 5 LSAs (AS external routes), while ordinary stub areas do not.
Answer: A
NEW QUESTION # 138
In the wide area network IPv6 transition scenario, if it is necessary to "allow terminals that only support IPv4 to access IPv6 network resources", which of the following technologies should be used?
- A. IPv4/IPv6 dual-stack technology
- B. IPv4 over IPv6 tunnel
- C. DNS64+NAT64
- D. NAT444 (Carrier-grade NAT)
Answer: C
NEW QUESTION # 139
(One particular WLAN architecture supported on a campus network has the following networking characteristics: The AP can work independently, or manage a small number of other APs to implement basic roaming functions; the cost is low, and network maintenance personnel only need limited skills. What is this WLAN architecture?)
- A. Leader AP
- B. AC + Fit AP
- C. Agile distributed AP
- D. Fat AP
Answer: A
Explanation:
In Huawei campus WLAN solutions, different WLAN architectures are designed to meet varying network scales, cost requirements, and management complexity. The architecture described in this question matches theLeader APsolution.
ALeader APcan operate independently without a dedicated wireless controller, while also having the capability to manage asmall number of subordinate APs. The Leader AP takes on lightweight control functions, such as basic configuration management and simple roaming coordination among the managed APs. This allows wireless users to roam between APs with minimal service interruption, meeting basic mobility requirements.
According to HCIP Datacom Campus Network documentation, the Leader AP architecture is characterized bylow deployment cost and simple maintenance. Since no separate AC is required and the number of APs is limited, network planning and configuration are straightforward. This significantly reduces the technical skill level required for daily operation and maintenance, making it suitable for small campuses, retail stores, branch offices, and small enterprises.
In contrast,Fat APsoperate completely independently and do not support centralized roaming management.AC
+ Fit AParchitectures are designed for medium to large networks and require higher investment and professional maintenance.Agile distributed APsolutions focus on centralized APs and RUs, which do not align with the independent AP management described.
Therefore, the WLAN architecture that best fits the given characteristics isLeader AP, making optionAthe correct answer.
NEW QUESTION # 140
(The centralized VXLAN gateway manages inter-subnet traffic in a centralized manner. The gateway deployment and management are simple. However, ARP entries of all terminals need to be generated on the Layer 3 gateway, and the number of ARP entries on the Layer 3 gateway is limited. Therefore, the centralized VXLAN gateway is not suitable for scenarios with a large number of terminals.)
- A. FALSE
- B. TRUE
Answer: B
Explanation:
In a centralized VXLAN gateway architecture, all inter-subnet traffic is forwarded to a centralized Layer 3 gateway, typically deployed on a core or aggregation device. This design simplifies network planning, gateway configuration, and policy enforcement because routing, security, and traffic control are all handled at a single centralized point. From an operational perspective, deployment and management are straightforward, which makes centralized gateways suitable for small- to medium-sized campus networks or environments with limited endpoints.
However, according to HCIP Datacom Campus Network documentation, this architecture introduces scalability limitations. Since the centralized gateway performs Layer 3 forwarding for all VXLAN segments, it must maintain ARP entries for every terminal in the network. As the number of endpoints increases, the ARP table on the Layer 3 gateway grows rapidly. Hardware resources such as memory and processing capacity limit the maximum number of ARP entries that can be supported.
In large-scale campus scenarios with a high density of terminals-such as universities, hospitals, or enterprise office campuses-this ARP scalability bottleneck can impact performance and stability. Excessive ARP entries may lead to increased CPU utilization, delayed ARP resolution, and reduced forwarding efficiency.
For such environments, HCIP Datacom recommends distributed VXLAN gateways, which distribute ARP and routing responsibilities across multiple devices. Therefore, the statement is correct, and the centralized VXLAN gateway is not suitable for scenarios with a large number of terminals.
NEW QUESTION # 141
In a WAN BGP protocol deployment, if it is necessary to "control the range of routes advertised by the local AS to its neighbors, and only advertise routes to specific network segments", which of the following policies should be configured?
- A. BGP route aggregation
- B. BGP Neighbor MD5 Authentication
- C. BGP route filtering (e.g., prefix-list)
- D. Adjust BGP Local Preference properties
Answer: C
NEW QUESTION # 142
In the Huawei SD-WAN iMaster NCE-WAN management platform, which of the following functions can "manage the configuration of branch devices and support configuration rollback to historical versions"?
- A. Network topology visualization
- B. Device CPU utilization monitoring
- C. Configure version management and rollback
- D. Batch distribution of configuration templates
Answer: C
NEW QUESTION # 143
In Huawei's SD-WAN solution, for the scenario of " simultaneous access of branch dual links (Internet + 5G)", which of the following technologies can "achieve traffic load sharing between the two links, and ensure uninterrupted service when a single link fails"?
- A. All traffic uses the internet link only, leaving the 5G link idle.
- B. Use only one link, with the other link as a cold backup (manually switch over in case of failure).
- C. Bandwidth-based load balancing (e.g., internet handles 60% of traffic, 5G handles 40%) + BFD (Bandwidth-based failover)
- D. Fixed link allocation based on service type (VPN services use 5G, public network services use the Internet), with no load balancing.
Answer: C
NEW QUESTION # 144
(When configuring access authentication, you need to define the items authorized to users in the authorization result. Which of the following items does not need to be defined?)
- A. ACL
- B. VLAN
- C. Security group
- D. IP address
Answer: D
Explanation:
In Huawei campus networks, access authentication and authorization are implemented based on the AAA framework. After a user is successfully authenticated, the network enforces anauthorization result, which defines what network resources the user is allowed to access and how traffic is controlled. These authorization results are typically delivered by the authentication server or configured locally on network devices.
According to HCIP Datacom Campus Network documentation,authorization results focus on policy and access control attributes, not basic network parameter assignment. Common authorization items includeVLAN assignment,security group assignment, andACL application. VLANs determine the user's logical network location, security groups enable group-based policy control, and ACLs restrict or permit traffic based on predefined rules. These elements directly affect access permissions and security enforcement.
AnIP address, however, does not need to be defined in the authorization result. In campus networks, IP addresses are usually assigned dynamically throughDHCP, either by a DHCP server or a DHCP relay function on network devices. The IP address allocation process is independent of user authorization and does not represent an access control policy.
Separating IP address assignment from authorization simplifies network design and improves scalability. It allows users to obtain IP addresses automatically while access rights are enforced consistently through identity-based policies. Therefore, among the given options,IP addressis not an item that must be defined in the authorization result.
Hence, the correct answer isB.
NEW QUESTION # 145
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