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Huawei H12-831_V1.0-ENU Exam Overview:
| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIP-Datacom-Advanced Routing & Switching Technology V1.0 |
| Exam Number: | H12-831_V1.0 |
| Available Languages: | Chinese, English, Japanese |
| Real Exam Qty: | 60 |
| Exam Format: | Single-answer questions, True or false, Short response items, Drag-and-drop items, Multiple-answer questions |
| Related Certifications: | HCIE-Datacom HCIP-Datacom-Core Technology V1.0 |
| Exam Price: | USD 180 |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 90 minutes |
| Passing Score: | 600/1000 |
| Recommended Training: | HCIP-Datacom-Advanced Routing & Switching Training |
| Exam Registration: | Huawei Talent Portal Pearson VUE Registration |
| Sample Questions: | Huawei H12-831_V1.0-ENU Sample Questions |
| Exam Way: | Online or onsite via Pearson VUE test centers |
| Pre Condition: | HCIA-Datacom certification or equivalent knowledge recommended; HCIP-Datacom-Core Technology knowledge is highly recommended |
| Official Syllabus URL: | https://e.huawei.com/en/talent/#/cert/exam-detail?code=H12-831_V1.0 |
Huawei H12-831_V1.0-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Advanced BGP Features | 10% | - BGP multi-homing and load balancing - BGP route selection and attributes - Route reflectors and confederations - Routing policies and filtering |
| Topic 2: Advanced IGP Features | 17% | - IS-IS advanced features
|
| Topic 3: Network Troubleshooting | 10% | - Switching and link fault handling - Performance and service fault resolution - Routing protocol fault diagnosis - Structured troubleshooting methodology |
| Topic 4: Network Cutover | 7% | - Post-cutover validation - Implementation and rollback strategy - Pre-cutover verification - Cutover planning and risk assessment |
| Topic 5: MPLS Technologies | 19% | - LDP and RSVP-TE protocols - MPLS fundamentals and label distribution - MPLS VPN (L3VPN, L2VPN) - MPLS OAM and protection |
| Topic 6: Network O&M | 7% | - Configuration management and backup - Network monitoring and performance analysis - Routine maintenance procedures - Log and alarm management |
| Topic 7: IPv6 Routing | 20% | - OSPFv3 and IS-IS for IPv6 - IPv6 address planning and configuration - BGP4+ for IPv6 - Transition mechanisms (dual-stack, tunnel, translation) |
| Topic 8: Advanced Ethernet Technologies | 10% | - Port isolation and security features - QinQ and VLAN mapping - Ethernet link aggregation and reliability - VLAN aggregation and MUX VLAN |
Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Sample Questions:
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. The Echo Request packet received by R2 carries label 1025, and the Echo Reply packet received by R2 carries label 1024.
- C. Both the Echo Request and Echo Reply packets received by R2 do not carry any label.
- D. The Echo Request packet received by R2 carries label 1025, and the Echo Reply packet received by R2 does not carry any label.
Correct Answer: D 🗳️
On the OSPF network shown in the figure, area 1 is an NSSA , area 2 is a stub area , and R4 imports an external route 10.0.4.4/32 . The router ID of each router is 10.0.X.X , where X is the router number . The asbr-summary 10.0.4.0 255.255.255.0 command is configured in the OSPF processes of R1 and R3 .
Match the following descriptions of routing tables with the corresponding routers :
Correct Answer:
Explanation:
Comprehensive and Detailed In-Depth Explanation:
Key OSPF Concepts to Consider:
* Area 1 is an NSSA (Not-So-Stubby Area):
* NSSAs allow external routes but advertise them as Type-7 LSAs.
* The ABR (R2) converts these Type-7 LSAs into Type-5 LSAs for the backbone (Area 0).
* Area 2 is a Stub Area:
* Stub areas do not allow external routes (Type-5 LSAs) .
* This means that R5 (inside Area 2) will NOT receive external routes like 10.0.4.4/32 or
10.0.4.0/24 .
* Effect of asbr-summary 10.0.4.0 255.255.255.0 on R1 and R3:
* This command ensures that R1 and R3 will see a summarized route 10.0.4.0/24 instead of specific /32 routes .
Routing Table Analysis:
* R1 (ABR for NSSA, with ASBR summary configured)
* Connected to Area 1 (NSSA) and Area 0 (Backbone)
* Since asbr-summary 10.0.4.0 255.255.255.0 is configured on R1, it contains both 10.0.4.4/32 (from R4) and the summarized 10.0.4.0/24 .
* # Matches Option 4: The routing table contains both 10.0.4.4/32 and 10.0.4.0/24.
* R5 (Inside Area 2 - Stub Area)
* Stub areas do not receive external routes (Type-5 LSAs) .
* Since R5 is inside a stub area, it does not contain 10.0.4.4/32 or 10.0.4.0/24 .
* # Matches Option 3: The routing table does not contain 10.0.4.4/32 or 10.0.4.0/24.
* R2 (ABR between NSSA and Backbone, but no ASBR summary configured)
* R2 converts Type-7 LSAs from R4 into Type-5 LSAs and advertises them into Area 0.
* Since no ASBR summary is configured on R2 , it only sees the specific external route 10.0.4.4
/32 but not the summarized 10.0.4.0/24 .
* # Matches Option 1: The routing table contains 10.0.4.4/32 only.
* R3 (Another ABR with ASBR summary configured)
* R3 has asbr-summary 10.0.4.0 255.255.255.0 configured, which means it will summarize the external routes.
* Instead of 10.0.4.4/32, R3 will only have the summarized 10.0.4.0/24 route.
* # Matches Option 2: The routing table contains 10.0.4.0/24 only.
References:
HCIP-Datacom-Advanced Routing & Switching Technology V1.0 - OSPF Areas (Stub, NSSA, and Backbone) OSPF External Route Advertisement and Summarization OSPF NSSA Behavior and Type-7 to Type-5 Conversion
In the figure, the company wants to ensure secure communication between the headquarters and branch , and isolate the R & D areas from non-R & D areas , without changing the current network deployment.
To meet this requirement, an administrator deploys BGP/MPLS IP VPN on the network .
Which of the following statements are true?
- A. To enable communication between the headquarters and branch R & D areas, both the ERT and IRT of VPN1 and VPN2 can be set to 100:100.
- B. To implement communication between the headquarters and branch R & D areas, the RDs of VPN1 and VPN2 need to be set to the same value.
- C. R & D areas and non-R & D areas have overlapping address spaces. Therefore, services in the two areas cannot be isolated.
- D. To isolate R & D areas from non-R & D areas at the headquarters, the RTs of VPN1 can all be set to 100:100 and the RTs of VPN3 can all be set to 200:200.
Correct Answer: A,D 🗳️
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On the network shown in the figure, single-hop BFD is configured on R1 and R2 .
A network engineer finds that the BFD session goes down . To locate the fault, the network engineer queries the BFD configurations on R1 and R2 .
According to the configuration information marked in the figure, it can be determined that mismatched time parameter settings on R1 and R2 cause the BFD session to go down .
Is this statement TRUE or FALSE ?
- A. FALSE
- B. TRUE
Correct Answer: A 🗳️
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The figure shows the logical network architecture of a migration project . The purpose of the migration is to enable terminals in different geographical locations to communicate with each other and deploy the gateway of the terminals on the PE routers .
After the migration is complete, which of the following methods can be used by network engineers to preliminarily check the network connectivity?
Options:
- A. Configuring NQA on PE1 and PE2, with the destination address being the IP address of each other.
- B. On PE1 and PE2, checking whether the ARP table contains the ARP entry of the peer network segment.
- C. On PE1 and PE2, checking whether there are routes to each other's network segment in the routing tables.
- D. On PE1, using 192.168.1.1 as the source address to ping 192.168.2.1.
Correct Answer: A,C,D 🗳️
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