Huawei H12-841_V1.5 Practice Test Questions Answers

The displayed routes are EVPN routes shown in the formatNetwork(EthTagId/IpAddrLen/OriginalIp)with a /32 “OriginalIp” value (for example,0:32:1.1.1.0). In Huawei VXLAN BGP EVPN as described in HCIP Datacom Campus Network materials, this format corresponds toEVPN Route Type 3 (Inclusive Multicast Ethernet Tag Route). Type 3 routes are used by VTEPs to advertise participation information for a VXLAN broadcast domain (BD) and to provide the remote endpoint information needed for BUM (broadcast, unknown unicast, multicast) traffic handling.

Type 3 routes effectively carry theremote VTEP address information(the VTEP IP that serves as the tunnel destination in the underlay). Once the underlay Layer 3 network can reach that VTEP IP (for example, via IGP/BGP underlay routes), the VXLAN overlay can build forwarding toward the peer VTEP, so statementAis true and statementDis also true.

When ingress replication is used for BUM forwarding, the local VTEP needs a replication list of remote VTEPs in the BD. Receiving Type 3 routes provides the membership information required to form this list, making statementBtrue.

StatementCis false becauseType 2routes are MAC/IP Advertisement routes that include MAC information (and optionally a host /32 IP). The shown output contains no MAC fields, so it is not Type 2.

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

Encapsulating Security Payload (ESP) is one of the core IPsec protocols used to protect data confidentiality, integrity, and authenticity. To prevent replay attacks, ESP includes aSequence Numberfield in its header. This field plays a critical role in ensuring packet freshness.

Each ESP packet carries a monotonically increasing sequence number assigned by the sender. The receiving device maintains a sliding window and checks incoming packets against this window. If a packet arrives with a sequence number that has already been received or falls outside the valid window, the packet is considered a replay and is discarded. This mechanism effectively protects the network against replay attacks, where attackers capture legitimate packets and retransmit them to disrupt communication or bypass security controls.

TheSPI (Security Parameters Index)identifies the security association used for the packet but does not provide replay protection. TheNext Headerfield indicates the type of payload carried in the ESP packet.Authentication Dataensures packet integrity and data origin authentication but does not independently prevent replay attacks without the sequence number mechanism.

According to HCIP Datacom Campus Network documentation and IPsec standards, replay protection in ESP is implemented using the Sequence Number field, making option A the correct answer.

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.

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) providewireless 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.

iMaster NCE-Campus is Huawei’s centralized management and control platform specifically designed forcampus network scenarios. According to HCIP Datacom Campus Network documentation, its primary purpose is to provide unified planning, automated deployment, policy control, and intelligent O&M for campus environments. Therefore,campus networksare one of the most typical and core deployment scenarios for iMaster NCE-Campus.

In addition, iMaster NCE-Campus is widely used to deployVXLAN Fabric networkswithin campuses. VXLAN Fabric is a key technology for building scalable, virtualized, and multi-tenant campus networks. iMaster NCE-Campus simplifies VXLAN Fabric deployment by automating underlay and overlay configuration, VN creation, VNI assignment, and BGP EVPN policy distribution. This makes VXLAN Fabric networks another standard and typical deployment scenario supported by the platform.

Branch networksare not considered a typical deployment scenario for iMaster NCE-Campus. Branch network management is usually handled by iMaster NCE-WAN in SD-WAN solutions, which focuses on WAN connectivity, branch access, and centralized WAN control rather than campus-oriented services.

Similarly,small-sized networksare not defined as a deployment scenario category in iMaster NCE-Campus documentation. The platform is designed for medium to large campus environments where centralized management and automation provide the most value.

Therefore, the typical deployment scenarios when using iMaster NCE-Campus areCampus networksandVXLAN Fabric networks, making optionsA and Bthe correct answers.