Huawei H12-831_V1.0 : HCIP-Datacom-Advanced Routing & Switching Technology V1.0
- Exam Code: H12-831_V1.0
- Exam Name: HCIP-Datacom-Advanced Routing & Switching Technology V1.0
- Updated: Sep 29, 2026
- Q & A: 211 Questions and Answers
About Huawei H12-831_V1.0 Exam
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Huawei H12-831_V1.0 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Network Design and Troubleshooting | - Troubleshooting methods
|
| IPv6 and Network Services | - Network services
|
| BGP and Internet Routing | - BGP fundamentals
|
| MPLS and VPN Technologies | - MPLS fundamentals
|
| Advanced Routing Protocols | - IS-IS Routing Protocol
|
Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Sample Questions:
The figure shows the file information on R2. When a network engineer runs the dir | exclude 1 command to view the file information, which of the following files will be displayed?
- A. 4.zip
- B. 1.cfg
- C. 2.cfg
- D. 3.dat
Correct Answer: C 🗳️
In CE multi-homing scenarios, if BGP AS number substitution is enabled on PEs, you can run the peer soo command on the EBGP peers of the PEs and CE to configure the Site of Origin (SoO) attribute to prevent loops.
- A. FALSE
- B. TRUE
Correct Answer: B 🗳️
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
On the OSPF network shown in the figure, R1 and R2 use OSPF to communicate with each other through Loopback0 . In addition:
* MPLS LDP is enabled on R1 and R2 .
* The LDP transport address is the IP address of Loopback0 .
* A network engineer finds that an LDP session cannot be established between R1 and R2 and runs diagnostic commands (shown in the figure) to locate the fault.
Given this, which of the following are possible causes of the fault?
Options:
- A. R2's GE0/0/1 rejects packets with TCP destination port 646.
- B. R1's GE0/0/1 rejects packets with the destination IP address 10.0.2.2.
- C. MPLS LDP is not enabled on R2's GE0/0/1.
- D. R1's GE0/0/1 rejects packets with UDP destination port 646.
Correct Answer: A,C 🗳️
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A network engineer checks LLDP neighbor information on R1. The output is shown below.
Which of the following statements are true?
LLDP Output:
yaml
CopyEdit
< R1 > display lldp neighbor interface GE0/0/0
------------------------------------------------
GE0/0/0 has 1 neighbor(s):
Neighbor index: 1
Chassis type: MAC Address
Chassis ID: faed-ad04-0010
Port ID subtype: Interface Name
Port ID: GE0/0/0
System name: R2
System description: Huawei YunShan OS
Version 1.22.01 (AR8000 V100R002C200)
Copyright (C) 2021-2022 Huawei Technologies Co., Ltd.
HUAWEI AR8140-12G10XG
System capabilities supported: bridge router
System capabilities enabled: bridge router
Management address type: IPv4
Management address: 192.168.1.1
Expired time: 107s
- A. The VLAN ID of the peer device is 1.
- B. The interface number of the peer device is GE0/0/0.
- C. The sysname of the peer device is R2.
- D. The management IP address of the peer device is 192.168.1.1.
Correct Answer: B,C,D 🗳️
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