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Huawei H12-891_V1.0 learning materials help you to easily acquire the HCIE-Datacom V1.0 H12-891_V1.0 certification even if you have never touched the relative knowledge before. With our H12-891_V1.0 Exam Questions, you will easily get the favor of executives and successfully enter the gates of famous companies.
| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIE-Datacom V1.0 |
| Exam Number: | H12-891_V1.0 |
| Exam Format: | Short Response Item, Drag and drop item, Multiple-answer Question, Single-answer Question, True or false |
| Passing Score: | 600/1000 |
| Related Certifications: | HCIE-Datacom Huawei Certified ICT Expert (HCIE) |
| Exam Duration: | 90 minutes |
| Exam Price: | 300 USD |
| Available Languages: | ENU, CHS |
| Sample Questions: | Huawei H12-891_V1.0 Sample Questions |
| Exam Way: | Pearson VUE or Prometric |
| Pre Condition: | It is recommended to pass HCIP-Datacom-Core Technology. 5 years of relevant work experience is suggested. |
| Official Syllabus URL: | https://e.huawei.com/en/talent/cert/#/cert/technical-cert-details?certId=1223102600645939200&contentId=1223107831750217728 |
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Huawei H12-891_V1.0 (HCIE-Datacom V1.0) Certification Exam is an expert-level exam offered by Huawei Technologies Co., Ltd. HCIE-Datacom V1.0 certification exam is designed to validate the skills and knowledge required for planning, designing, implementing, operating, maintaining, and troubleshooting complex data communication networks. H12-891_V1.0 Exam covers a wide range of topics, including network design, network security, network management, and network optimization.
NEW QUESTION # 84
After you divide an interface of the firewall into the Untrust security domain, the interface belongs to the Untrust zone and no longer belongs to the Local zone.
Answer: A
NEW QUESTION # 85
The path of an SR-MPLS TE tunnel can be calculated by the controller or tunnel ingress.
Answer: A
Explanation:
Understanding SR-MPLS TE (Segment Routing MPLS Traffic Engineering)
#What is SR-MPLS TE?
Segment Routing (SR) replaces traditional MPLS LDP/RSVP-TE signaling.
UsesSR-TE policiesto define network pathswithout requiring per-flow state on intermediate routers.
#How is the SR-MPLS TE Path Calculated?
#By the SDN Controller (Centralized Path Computation)
The controller (e.g.,Huawei iMaster NCE) calculates theoptimal SR pathbased on:
Bandwidth requirements
Latency constraints
Traffic policies
The controllerthen delivers the SR policy to the ingress router.
#By the Ingress Router (Distributed Path Computation)
Theingress routercomputes theSR path dynamicallybased onlocal constraints.
This method is usefulwhen no centralized controller is available.
Why is the Answer TRUE?
#Both centralized (controller-based) and distributed (ingress router-based) path computation are supported in SR-MPLS TE.
Real-World Application:
5G and Cloud WANs:Centralized path optimizationreduces congestion dynamically.
Enterprise Networks:Local path computation ensuresfast rerouting in case of failures.
#Reference:Huawei HCIE-Datacom Guide - SR-MPLS TE and Path Computation Methods
NEW QUESTION # 86
As shown in the figure, ARP broadcast suppression is enabled on VTEP1 in BD 20 (VNI 200).
VTEP1 learns ARP information about PC2 through BGP EVPN routes.
When VTEP1 forwards the ARP request for PC1's MAC address to VTEP2,
What is the destination MAC address of the inner data frame?
Answer: A
Explanation:
Understanding VXLAN and ARP Suppression in BGP EVPN
VXLAN (Virtual Extensible LAN) is used to extend Layer 2 networks over Layer 3 infrastructure.
VXLAN uses VTEPs (VXLAN Tunnel Endpoints) to encapsulate and forward Layer 2 traffic.
BGP EVPN (Ethernet VPN) is used for MAC/IP address learning and distribution across VXLAN networks.
How ARP Request Forwarding Works in This Scenario?
1️⃣ ARP Broadcast Suppression Enabled (VXLAN Optimized Forwarding)
Since ARP broadcast suppression is enabled on VTEP1, the ARP request is not flooded.
Instead, VTEP1 checks its EVPN learned database to find PC2's MAC address (MAC C).
2️⃣ VTEP1 Encapsulates the ARP Request
VTEP1 encapsulates the ARP request in a VXLAN packet and sends it to VTEP2.
The original ARP frame inside the VXLAN tunnel still has:
Source MAC: MAC A (PC1's MAC)
Destination MAC: MAC C (PC2's MAC, learned via EVPN)
3️⃣ VXLAN Outer Headers
The outer VXLAN header uses:
Source IP: 1.1.1.1 (VTEP1)
Destination IP: 2.2.2.2 (VTEP2)
VNI (VXLAN Network Identifier): 200 (BD 20)
4️⃣ VTEP2 Receives and Forwards the ARP Request
VTEP2 decapsulates the VXLAN packet and forwards the original ARP request to PC2 (MAC C).
This ensures that only the intended receiver (PC2) gets the ARP request, preventing unnecessary broadcast flooding.
Why the Answer is MAC C?
✅ B. MAC C is Correct
The destination MAC of the inner data frame is PC2's MAC (MAC C).
This is because VTEP1 forwards the ARP request directly to VTEP2, which then forwards it to PC2.
Why Other Answers Are Incorrect?
❌ A. MAC B (Incorrect)
MAC B is VTEP1's MAC address, which is used in the outer VXLAN header, not in the inner Ethernet frame.
❌ C. MAC A (Incorrect)
MAC A is the source MAC of the ARP request (PC1), not the destination.
❌ D. MAC D (Incorrect)
MAC D is not mentioned in the topology, so it is irrelevant.
📖 Reference: Huawei HCIE Datacom - VXLAN BGP EVPN and ARP Suppression
NEW QUESTION # 87
MPLS is called multiprotocol label switching, and with respect to label descriptions in MPLS, the correct one is ?( Multiple select).
Answer: B,C,D
NEW QUESTION # 88
The on-premise mode is recommended for controller deployment on small and midsize campus networks.
Answer: A
Explanation:
Comprehensive and Detailed
On-premise mode refers to deploying the Huawei iMaster NCE-Campus controller within the enterprise network instead of using a cloud-based solution.
✔ Best suited for small and midsize campus networks that require:
Greater control over data security
Local network automation
No reliance on cloud connectivity
Since on-premise mode is recommended for small and midsize campus networks, the statement is TRUE.
📖 Reference: Huawei HCIE Datacom - iMaster NCE Deployment Modes
NEW QUESTION # 89
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