高品質-権威のあるH12-831_V1.0-ENU対応資料試験-試験の準備方法H12-831_V1.0-ENU資格関連題

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Huawei H12-831_V1.0-ENU Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Advanced Ethernet Technologies	10%	- Ethernet security - VLANs
Topic 2: Advanced IGP Features	17%	- OSPF advanced features - Route control - IS-IS advanced features - Fast convergence
Topic 3: MPLS Technologies	19%	- MPLS forwarding - MPLS principles - MPLS VPN applications - MPLS configuration
Topic 4: Network Troubleshooting	10%	- Structured troubleshooting processes - Troubleshooting methods
Topic 5: Advanced BGP Features	10%	- Advanced BGP features - Route reflectors - Inter-domain routing optimization - BGP route control
Topic 6: Network Cutover	7%	- Migration process - Basic cutover concepts
Topic 7: Network O&M	7%	- Routine maintenance - Data collection
Topic 8: IPv6 Routing	20%	- BGP4+ - OSPFv3 - IPv6 static routes - IS-IS for IPv6

>> H12-831_V1.0-ENU対応資料 <<

H12-831_V1.0-ENU資格関連題、H12-831_V1.0-ENU日本語版復習指南

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Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 認定 H12-831_V1.0-ENU 試験問題 (Q208-Q213):

質問 # 208
During the daily troubleshooting process, engineers may need to view some alarm information of the device. Run the terminal command to enable the terminal to display the debugging/log/alarm information sent by the information center.

正解：

解説：
monitor

質問 # 209
As shown in the figure, CE1 sends traffic of VPN1 to PE1. After receiving the traffic, PE1 forwards the traffic. Which of the following statements are true?

A. PE1 uses the LDP label corresponding to the Next_Hop address of a VPNv4 route as the outer label of a labeled packet.
B. PE1 ' s interface that receives the traffic is bound to VPN1.
C. PE1 searches for a VPN label based on the tunnel ID and adds a label header to the packet.
D. PE1 checks the forwarding table corresponding to VPN1 and obtains the tunnel ID.

正解：A、B、D

解説：
In Huawei's BGP/MPLS IP VPN forwarding model:
# Traffic Flow:
* CE1 sends an IPv4 packet (unencrypted, unlabeled) to PE1 .
* PE1 determines the VPN routing table (VRF) based on the incoming interface.
* PE1 performs a lookup in the VPN routing table for the destination.
* PE1 finds the VPNv4 route (with BGP label) and also gets the LDP tunnel label for the next-hop PE router.
* PE1 pushes two labels onto the packet:
* Inner label: VPN label (BGP label for VPN route)
* Outer label: LDP label (tunnel label to PE2)
# Option A: PE1 searches for a VPN label based on the tunnel ID and adds a label header to the packet.
# Incorrect - VPN labels are not searched based on tunnel ID .
* The VPN label is derived from VPNv4 BGP route , not from tunnel ID.
# Option B: PE1 checks the forwarding table corresponding to VPN1 and obtains the tunnel ID.
# Correct -
* PE1 first determines the VRF based on interface binding.
* It then uses that to look up the VPNv4 route and retrieves the tunnel information (e.g., next-hop PE).
# Option C: PE1 uses the LDP label corresponding to the Next_Hop address of a VPNv4 route as the outer label of a labeled packet.
# Correct -
* The outer label is the LDP label for the LSP to the next-hop PE (e.g., PE2).
# Option D: PE1 ' s interface that receives the traffic is bound to VPN1.
# Correct -
* In MPLS VPN, PE routers bind CE-facing interfaces to VRFs (VPN routing tables).
* This is how the device knows which VPN instance the traffic belongs to.
# Final answer: B, C, D
Official Huawei Extract:
" In BGP/MPLS IP VPNs, PE devices use interface bindings to associate CE traffic with VRFs. When forwarding packets, PE devices push two labels: a VPN label (from BGP) and a transport label (from LDP) to reach the next-hop PE. "
- [Huawei HCIA-Datacom Certification Guide - MPLS VPN Packet Forwarding Chapter]

質問 # 210
As shown below:

A. R3andR1different area codes
B. R3andR1ofIIHAuthentication failed
C. R3andR1ofIS-LevelMismatch
D. R3andR1ofSystem

正解：B

質問 # 211
IEIF expands the functions of OSPF by taking advantage of the strong expansibility of OSPF. To enable it to support IPv6 networks, the expanded protocol is called OSPFv3. OSPFv3 is compatible with OSPFv2.

A. False
B. True

正解：A

質問 # 212
Regarding the IPSG, which of the following statement is incorrect?

A. IPSG can turn on the IP packet inspection and alarm function, and cooperate with the network management to perform alarms
B. IPSG can prevent the host from changing the IP address privately
C. IPSG is a source IP address filtering technology based on the three-layer interface
D. IPSG can prevent IP address spoofing attacks

正解：C

質問 # 213
......

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