H12-831_V1.0-ENU Prüfungsinformationen & H12-831_V1.0-ENU Prüfungsunterlagen

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

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Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 H12-831_V1.0-ENU Prüfungsfragen mit Lösungen (Q200-Q205):

200. Frage
As shown in the figure, MPLS/BGP IPVPN is deployed on the network.
The MP-BGP neighbor relationship is established between PE1 and PE2 through the LoopbackD interface.
After the configuration is complete, it is found that CE1 and CE2 cannot learn routes from each other.
Run the command to check the error on PE2.
The neighbor information is shown in the figure, what is the most likely cause of the problem?

A. PE1orPE2± of VPN Instance parameter configuration error
B. PE1andPE2 not present BGP-VPN4 Enabling neighbors in unicast address family view
C. PE1andPE2 between LSPTunnel not established
D. PE1orPE2 with each other CEMisconfigu red routing protocol between

Antwort: B

201. Frage
The figure shows the LSP information of R1 and R3 on an MPLS network. An administrator runs the ping -a 1.1.1.1 3.3.3.3 command on R1. Given this, which of the following statements is true?

A. The Echo Request packet received by R2 does not carry any label, and the Echo Reply packet received by R2 carries label 1024.
B. Both the Echo Request and Echo Reply packets received by R2 do not carry any label.
C. The Echo Request packet received by R2 carries label 1025, and the Echo Reply packet received by R2 does not carry any label.
D. The Echo Request packet received by R2 carries label 1025, and the Echo Reply packet received by R2 carries label 1024.

Antwort: C

202. Frage
On the network shown in the figure, an administrator first completes the routing configuration and then enables MPLS and LDP on R1, R2, and R3 and their interconnected interfaces. In this manner, traffic from PC1 to PC2 can be forwarded based on MPLS . Which of the following routing configurations can implement this function?

Options:

A. nginx
CopyEdit
R2
ospf 1
area 0
network 2.2.2.2 0.0.0.0
network 10.1.12.0 0.0.0.255
network 10.1.23.0 0.0.0.255
R3
ospf 1
area 0
network 3.3.3.3 0.0.0.0
network 10.1.23.0 0.0.0.255
bgp 65000
router-id 3.3.3.3
peer 1.1.1.1 as-number 65000
peer 1.1.1.1 connect-interface LoopBack 0
network 10.3.3.0 24
ip ip-prefix 1 index 10 permit 10.1.1.0 24
route recursive-lookup tunnel ip-prefix 1
B. nginx
CopyEdit
R1
ospf 1
area 0
network 1.1.1.1 0.0.0.0
network 10.1.12.0 0.0.0.255
network 10.1.1.0 0.0.0.255
R2
ospf 1
area 0
network 2.2.2.2 0.0.0.0
network 10.1.12.0 0.0.0.255
network 10.1.23.0 0.0.0.255
R3
ospf 1
area 0
network 3.3.3.3 0.0.0.0
network 10.1.23.0 0.0.0.255
network 10.3.3.0 0.0.0.255
C. nginx
CopyEdit
R1
ospf 1
area 0
network 1.1.1.1 0.0.0.0
network 10.1.12.0 0.0.0.255
R2
ospf 1
area 0
network 2.2.2.2 0.0.0.0
network 10.1.12.0 0.0.0.255
network 10.1.23.0 0.0.0.255
R3
ospf 1
area 0
network 3.3.3.3 0.0.0.0
network 10.1.23.0 0.0.0.255
D. nginx
CopyEdit
R1
bgp 65000
router-id 1.1.1.1
peer 3.3.3.3 as-number 65000
peer 3.3.3.3 connect-interface LoopBack 0
network 10.1.1.0 24
R3
bgp 65000
router-id 3.3.3.3
peer 1.1.1.1 as-number 65000
peer 1.1.1.1 connect-interface LoopBack 0
network 10.3.3.0 24

Antwort: B

Begründung:
Comprehensive and Detailed In-Depth Explanation:
This question is based on MPLS (Multiprotocol Label Switching) and its interaction with routing protocols
. The goal is to ensure PC1 (10.1.1.1) can communicate with PC2 (10.3.3.1) over MPLS . Let ' s analyze each option carefully.
1# # Understanding MPLS Routing Requirements
To forward traffic using MPLS and LDP , we need:
* An IGP (Interior Gateway Protocol) like OSPF or IS-IS to advertise network reachability.
* Loopback interfaces advertised in OSPF to establish LDP neighbor relationships.
* Consistent MPLS LDP enablement on all links in the MPLS domain.
* End-to-end IP reachability between loopbacks (since LDP uses the loopback for label distribution).
2# # Option A (Correct Answer) Analysis
This configuration enables OSPF on all routers (R1, R2, and R3) across the MPLS domain :
# All networks are advertised in OSPF area 0 , ensuring IP reachability.
# Loopback interfaces (1.1.1.1, 2.2.2.2, 3.3.3.3) are included , which is required for MPLS LDP peer establishment.
# PC1 ' s network (10.1.1.0/24) and PC2 ' s network (10.3.3.0/24) are properly advertised , ensuring end- to-end connectivity.
# R1, R2, and R3 have OSPF neighbor relationships , meaning LDP can use OSPF routes for label switching.
# Conclusion: Option A meets all MPLS forwarding requirements and is the correct answer.
3# # Why Other Options Are Incorrect
# Option B (Incorrect)
* Uses BGP instead of OSPF , which is not optimal for MPLS forwarding in a simple MPLS domain.
* LDP requires an IGP like OSPF or IS-IS to work efficiently.
* BGP alone does not establish LDP label bindings between R1, R2, and R3.
# Option C (Incorrect)
* Mixes OSPF and BGP , causing routing inconsistency.
* Uses ip ip-prefix and recursive lookup , which is unnecessary in a standard MPLS domain.
* BGP does not distribute labels dynamically like an IGP with LDP.
# Option D (Incorrect)
* R1 does not advertise the 10.1.1.0/24 network , meaning PC1's network is not reachable .
* R3 does not advertise the 10.3.3.0/24 network , meaning PC2's network is not reachable .
* Missing essential routing entries for full end-to-end reachability.
References:
# HCIP-Datacom Advanced Routing & Switching Technology # Huawei Official MPLS and LDP Configuration Guide # Huawei Enterprise Networking Documentation

203. Frage
BGP4+ carries the next hop address of the IPv6 route through the Next Hop attribute in the Update message.

A. TRUE
B. FALSE

Antwort: B

204. Frage
Regarding the MPLS forwarding process, which description of the ingress node forwarding is correct? (Multiple choice)

A. Press the obtained label in the IP packet, and process EXP according to the QoS policy, and process L at the same time, and then send the encapsulated MPLS packet to the next hop
B. Check the NHLFE entry, you can get the outgoing interface, next hop, outgoing label, and label operation type. The label operation type is Push
C. Find the corresponding NHLFE entry according to the Tunnel ID of the ILM table, and associate the LFlB entry with the NHLFE entry
D. After receiving the data packet, the Ingress node will first check the ILM table to find the Tunnel ID

Antwort: A,B

205. Frage
......

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