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Huawei H12-831_V1.0 Exam Overview:
| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIP-Datacom-Advanced Routing & Switching Technology V1.0 |
| Exam Number: | H12-831_V1.0 |
| Related Certifications: | HCIA-Datacom HCIE-Datacom HCIP-Datacom-Core Technology |
| Exam Duration: | 90 minutes |
| Passing Score: | 600/1000 |
| Exam Price: | USD 200 (varies by region) |
| Real Exam Qty: | 60 |
| Exam Format: | Single choice, True/False, Multiple choice |
| Certificate Validity Period: | 3 years |
| Available Languages: | Chinese, English |
| Recommended Training: | Huawei Talent Online Learning |
| Exam Registration: | Huawei Certification Official Portal |
| Sample Questions: | Huawei H12-831_V1.0 Sample Questions |
| Exam Way: | Online proctored or authorized testing center (onsite) |
| Pre Condition: | Recommended to hold HCIA-Datacom certification or equivalent networking knowledge. |
| Official Syllabus URL: | https://e.huawei.com/en/talent/#/cert |
Huawei H12-831_V1.0 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: MPLS and VPN Technologies | - VPN technologies
|
| Topic 2: IPv6 and Network Services | - IPv6 routing technologies
|
| Topic 3: BGP and Internet Routing | - BGP fundamentals
|
| Topic 4: Network Design and Troubleshooting | - Troubleshooting methods
|
| Topic 5: Advanced Routing Protocols | - OSPF Advanced Concepts
|
Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Sample Questions:
On the network shown in the figure, IS-IS runs on R1, R2, R4, and R5 , and the area ID is 49.0001 . IS-IS runs on R3 and R6 , and the area ID is 49.0002 . The import-route isis level-2 into level-1 command is configured on R2 .
In AS 65000 , R1, R3, R4, and R6 each establish iBGP peer relationships with R2 and R5 . R2 and R5 are Route Reflectors (RRs) , and R1, R4, R3, and R6 are clients .
An iBGP peer relationship is established between R2 and R5 , and the same cluster ID is configured. The iBGP peer relationships are established using Loopback0 . The IP address of Loopback0 on each router is 10.0.X.X/32, where X is the router number .
R1 and R4 import the external route 192.168.1.0/24 to BGP through the import-route command, and R3 and R6 import the external route 192.168.2.0/24 to BGP through the import-route command.
Which of the following statements are true ?
- A. The BGP routing table of R3 contains one valid route to 192.168.2.0/24 .
- B. The BGP routing table of R4 contains three valid routes to 192.168.2.0/24 .
- C. The BGP routing table of R2 contains three valid routes to 192.168.1.0/24 .
- D. The BGP routing table of R5 contains two valid routes to 192.168.1.0/24 .
Correct Answer: B,C,D 🗳️
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On the network shown in the figure, OSPF is deployed on R1 and R2. IS-IS is deployed on R2 and R3. To enable R1 to obtain the route to 10.0.3.3/32, ISIS routes are imported into OSPF on R2. In this case, the next hop address to 10.0.3.3/32 in the routing table of R1 is_____.
Correct Answer:
10.0.23.2
VLAN aggregation is configured on a switched network. Sub-VLAN 2 and Sub-VLAN 3 are added to Super-VLAN 10 . To enable hosts in different sub-VLANs to communicate with each other , run the following command in the VLANIF 10 view corresponding to the Super-VLAN .
(Enter lowercase letters.)
Correct Answer:
inter-sub-vlan-proxy enable
Explanation:
Understanding VLAN Aggregation (Super-VLAN and Sub-VLANs)
* VLAN aggregation allows multiple sub-VLANs to be grouped under a super-VLAN , reducing the number of VLANIF interfaces required for IP address configuration.
* Super-VLAN : A logical VLAN that does not forward Layer 2 traffic directly but is used for Layer 3 communication .
* Sub-VLANs : VLANs that exist within the Super-VLAN but cannot communicate with each other by default.
2# # Why is the " inter-sub-vlan-proxy enable " Command Needed?
* By default, hosts in different sub-VLANs under the same super-VLAN cannot communicate with each other because sub-VLANs do not exchange MAC address information.
* The inter-sub-vlan-proxy enable command allows Layer 3 communication between sub-VLANs under the same super-VLAN by acting as a proxy for ARP requests and replies .
* This enables inter-sub-VLAN communication while still reducing the number of VLANIF interfaces required.
3# # Command Syntax and Execution
* The correct command should be run under the VLANIF interface of the super-VLAN :
[Switch] interface vlanif 10
[Switch-Vlanif10] inter-sub-vlan-proxy enable
Reference: HCIP-Datacom Advanced Routing & Switching Technology - VLAN Aggregation and Inter- Sub-VLAN Communication
BGP allows you to use the filter-policy acl-number import command to filter received routes. The value of ad- number ranges from 2000 to 3999.
- A. FALSE
- B. TRUE
Correct Answer: B 🗳️
On the OSPFv3 network shown in the figure, OSPFv3 parameters use default values. The LSDB is checked on one of the devices. The router IDs of R1, R3, and R4 are 10.0.1.1, 10.0.3.3, and 10.0.4.4 respectively. The Origin Router part of some LSAs is hidden. Complete this part. (Tokens can be reused.) Match the Origin Router ID to the correct LSA entry below:
Correct Answer:
Explanation:
* Link-LSA (ID 0.0.0.4) : This LSA is originated by each router to describe its link-local IPv6 address and prefixes. The value 0.0.0.4 maps to the interface on R1 , which has Router ID 10.0.1.1 . # So the origin router is 10.0.1.1 .
* Network-LSA (ID 0.0.0.5) : This LSA is generated by the DR on the link. In the diagram, R4 (10.0.4.4) is connected to the shared network (GE0/0/1). # So the origin router is 10.0.4.4 .
* Inter-Area-Prefix-LSA (ID 0.0.0.1) : This LSA is used to describe routes from other areas and is generated by an ABR . In this case, R3 (Router ID 10.0.3.3) acts as the ABR. # So the origin router is
10.0.3.3 .
* Intra-Area-Prefix-LSA (ID 0.0.0.2) : This references a Network-LSA , and the reference type is 1 (Network-LSA). Since the Network-LSA (0.0.0.5) came from 10.0.4.4 , this also must have been generated by R4 . # So the origin router is 10.0.4.4 .
# Final Answer Summary:
Number
Origin Router
1
10.0.1.1
2
10.0.4.4
3
10.0.3.3
4
10.0.4.4
Official Huawei Extract:
" Each router in OSPFv3 generates Link-LSAs for each interface. The DR generates Network-LSAs.
ABRs generate Inter-Area LSAs, and the Intra-Area-Prefix LSA references either Router or Network LSAs depending on the link type. "
- [Huawei HCIA-Datacom OSPFv3 LSAs Section]
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