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Huawei H12-891_V1.0 (HCIE-Datacom V1.0) Certification Exam is a challenging exam that requires a significant amount of preparation. Candidates are expected to have a deep understanding of data communication technologies, including network protocols, routing, switching, and security. They should also be familiar with the latest industry trends and best practices. To pass the exam, candidates must demonstrate their ability to design, implement, and troubleshoot complex data communication networks.
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The HCIE-Datacom V1.0 exam is a comprehensive exam that covers a range of topics related to data communication. These topics include network design, network implementation, network maintenance, network troubleshooting, network security, and network management. H12-891_V1.0 Exam also covers the latest industry trends and best practices, ensuring that candidates are up-to-date with the latest developments in the field.
NEW QUESTION # 129
Refer to the following command output on the router R3. Which of the following statements are correct?
<R3> display interface Tunnel
Tunnel0/0/0 current state : UP
Line protocol current state : UP
Last line protocol up time : 15:21:26 UTC-08:00
Description: HUAWEI, AR Series, Tunnel0/0/0 Interface
Route Port, The Maximum Transmit Unit is 1500
Internet Address is 20.1.1.2/24
Encapsulation is TUNNEL, loopback not set
Tunnel source 10.0.3.3 (LoopBack0), destination 10.0.1.1
Tunnel protocol/transport GRE/IP, key disabled
keepalive disabled
Checksumming of packets disabled
Answer: B,C,D
Explanation:
From the output:
Tunnel destination IP address: Clearly shown as destination 10.0.1.1 ## Tunnel interface MTU: Shown as The Maximum Transmit Unit is 1500 ## Tunnel interface IP: Shown as Internet Address is 20.1.1.2/24 ## Tunnel source: Tunnel source 10.0.3.3 (LoopBack0) # Not 10.0.1.1 ## Therefore:
A- Correct
B- Correct
C- Correct
D- Incorrect (confuses destination as source)
Correct answers: A, B, C
NEW QUESTION # 130
Which of the following statements about SR-MPLS Policy candidate paths are correct?
Answer: A,B,C,D
Explanation:
Comprehensive and Detailed
✔ SR-MPLS Policy candidate paths are used for flexible path selection and load balancing in Segment Routing (SR-MPLS) networks.
✔ Correct Statements:
✅ (A) Each candidate path can have multiple segment lists, each with its own weight for load balancing.
✅ (B) Load balancing is supported both between candidate paths and within segment lists.
✅ (C) An SR-MPLS Policy can contain multiple candidate paths, each with a preference value.
✅ (D) The candidate path with the highest preference is selected as the primary path.
📖 Reference: Huawei HCIE Datacom - SR-MPLS Policy Path Selection
NEW QUESTION # 131
When you configure a virtualized campus network on iMaster NCE-Campus, Fit APs can immediately go online after you add them to iMaster NCE-Campus.
Answer: A
Explanation:
Comprehensive and Detailed Explanation:
# Fit APs require additional configurations before going online, such as:
* AP authentication and onboarding through DHCP Option 148 or manual registration.
* Firmware upgrade and provisioning from iMaster NCE-Campus.
* Policy enforcement and VLAN assignment.
Since additional steps are required, Fit APs do not go online immediately, making the statement FALSE.
# Reference: Huawei HCIE Datacom - AP Registration and Authentication
NEW QUESTION # 132
As shown in the figure, SW1 and SW2 use asymmetric IRB (Integrated Routing and Bridging) forwarding, and PC1 and PC2 communicate with each other. Which of the following is the destination MAC address of the original data frame in the packet sent from VTEP1 to VTEP2?
Answer: D
Explanation:
Comprehensive and Detailed In-Depth Explanation:
1. Understanding VXLAN Asymmetric IRB Forwarding:
InVXLAN (Virtual Extensible LAN)networks, there are two types of IRB forwarding:Symmetric IRBandAsymmetric IRB.
InAsymmetric IRB, routing occurs only at the ingress VTEP (Virtual Tunnel Endpoint).
Theingress VTEP (VTEP1)encapsulates the original data frame and sends it to theegress VTEP (VTEP2)over the VXLAN tunnel.
Thedestination MAC addressof the original Ethernet frame is theMAC address of the Layer 3 gateway (VBDIF)at the egress VTEP.
2. Analyzing the Topology:
PC1 (172.16.2.1/24) withMAC Ais sending traffic to PC2 (172.16.1.2/24) withMAC D.
Both PCs are in different subnets, so inter-subnet routing is required.
VTEP1 (1.1.1.1)on SW1 is the ingress VTEP.
VTEP2 (2.2.2.2)on SW2 is the egress VTEP.
TheVXLAN Network Identifier (VNI)for the traffic is100.
SW1 has two VBDIF interfaces:
VBDIF10 (MAC B)- Interface for BD10 (172.16.2.254).
VBDIF20 (MAC C)- Interface for BD20 (172.16.1.254).
3. Packet Flow in Asymmetric IRB:
Step 1:PC1 sends a packet destined for PC2. The packet is routed at theingress VTEP (SW1)using theVBDIF interface (VBDIF10 with MAC B).
Step 2:Theingress VTEP (SW1)encapsulates the packet in aVXLAN header(VNI 100) and sends it toVTEP2.
Step 3:Theoriginal data frame inside the VXLAN packetmust have adestination MAC addressthat matches thegateway MAC address (VBDIF20 - MAC C)at theegress VTEP (SW2).
Step 4:On reachingVTEP2, the encapsulation is removed, and the original frame withdestination MAC Cis forwarded.
Step 5:VTEP2performs Layer 3 routing to forward the packet toPC2.
4. Why MAC C is Correct:
Inasymmetric IRB forwarding, the routing decision at the ingress VTEP ensures that thedestination MACin the original frame is set to theVBDIF (gateway) MAC of the egress VTEP.
Since theegress VTEP (SW2)hasVBDIF20 (MAC C)for the destination subnet (172.16.1.0/24), thedestination MAC addressof the original frame isMAC C.
References:
Huawei HCIE-Datacom V1.0 Training Materials
Huawei Official Documentation: VXLAN Configuration Guide
VXLAN Asymmetric IRB Forwarding Concept
HCIE-Datacom Knowledge Base: VXLAN and IRB Configurations
NEW QUESTION # 133
In the gRPC-based telemetry protocol, the data model layer consists of theRPC layer,telemetry layer, andservice data layer. Drag the.proto fileto the layer where the file should be located.
Answer:
Explanation:
A screenshot of a computer AI-generated content may be incorrect.
Comprehensive and Detailed In-Depth Explanation:
ThegRPC-based telemetry protocolutilizesprotocol buffers (.proto files)to define the structure and data format used in communication between a client and a server. In Huawei ' s telemetry architecture, these files are categorized based on their roles in the data model.
1. RPC Layer:
File:huawei-grpc-dialin.proto
TheRPC layer (Remote Procedure Call layer)handles communication between the client and server.
The filehuawei-grpc-dialin.protodefines thegRPC service interfaces, message structures, and procedures for remote method invocation.
It is essential forestablishing communicationandinvoking telemetry data collection.
Function:Managesdial-in and dial-out connectionsbetween the telemetry client and the server.
2. Telemetry Layer:
File:huawei-telemetry.proto
Thetelemetry layeris responsible forcollecting, packaging, and exporting telemetry data.
The filehuawei-telemetry.protocontains thedata modelused for telemetry reporting, includingstreaming data formatsandtelemetry messages.
It defines how thecollected datais organized and transmitted.
Function:Provides astructured way to export telemetry datain real-time or batch mode.
3. Service Data Layer:
File:huawei-debug.proto
Theservice data layercontains data models related todiagnostics, debugging, and operational data.
The filehuawei-debug.protois used tocollect debugging informationfrom network devices.
This file is crucial fortroubleshooting and monitoring the healthof the system.
Function:Facilitatesdebugging and diagnostic telemetry data collection.
Why This Mapping Is Correct:
The mapping is based on thefunctional role of each layerand thepurpose of each .proto filein the Huawei gRPC-based telemetry architecture.
Correctly identifying the file location is crucial foreffective telemetry configurationanddata collection.
References:
Huawei HCIE-Datacom V1.0 Training Materials
Huawei Official Documentation: Telemetry Configuration Guide
gRPC Protocol Buffers and Service Definition
HCIE-Datacom Knowledge Base: Telemetry and Data Collection
NEW QUESTION # 134
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