[May 27, 2026] BraindumpsVCE H12-831_V1.0-ENU Exam Practice Test Questions (Updated 465 Questions)
Pass Huawei H12-831_V1.0-ENU Exam Info and Free Practice Test
Huawei H12-831_V1.0 certification exam is intended for IT professionals who have a minimum of two years of experience working with Huawei routers and switches. H12-831_V1.0-ENU exam is designed to test the candidate's ability to design, implement, and troubleshoot complex network solutions using Huawei technologies. Candidates who pass H12-831_V1.0-ENU exam will be recognized as experts in advanced routing and switching technology and will be able to design and implement complex network solutions using Huawei technologies.
NEW QUESTION # 111
What is the purpose of configuring LSP fragmentation for IS-IS equipment?
- A. Make the device unable to establish IS-IS neighbors
- B. Make the device unable to learn IS-IS routing information
- C. No practical purpose
- D. Allow the device to support more IS-IS routing entries
Answer: D
NEW QUESTION # 112
In a certain MPLS network, the LSP information of R1 and R3 is shown in the figure. At this time, the administrator enters the command ping -a 1.1.1.1 3.3.3.3 on R1. Which of the following descriptions of this scenario is correct?
- A. The Echo Request message received by R2 does not carry a label, and the Echo Reply message received by R2 carries label 1024
- B. The Echo Request message received by R2 carries label 1025, and the Echo Reply message received by R2 carries label 1024
- C. The Echo Request message received by R2 does not carry a label, and the Echo Reply message received by R2 does not carry a label either.
- D. The Echo Request message received by R2 carries label 1025, while the Echo Reply message received by R2 does not carry a label.
Answer: B
NEW QUESTION # 113
To speed up the detection of link failures in an IS-IS network, you can associate IS-IS with BFD.
- A. True
- B. False
Answer: A
NEW QUESTION # 114
On the network shown in the figure, VRRP is configured on Rl and R2, and the virtual IP address is
10.0.12.254. After the configuration is complete, the network engineer checks the VRRP status on R1 and R2, and finds that both devices are in the Master state. Which of the following is not a possible cause of this problem?
- A. GE0/0/1 and GEO/0/2 of SW1 belong to different VLANs.
- B. The VRIDs configured on R1 and R2 are different.
- C. The virtual IP addresses configured on R1 and R2 are different.
- D. R1 and R2 have different priorities in the VRRP group.
Answer: D
NEW QUESTION # 115
In a networking environment where the network is relatively stable and has high requirements for routing convergence time, you can specify the OSPF LSA reception time interval to 0 to cancel the LSA reception time interval, so that topology or routing changes can be immediately perceived, thereby accelerating routing convergence.
- A. True
- B. False
Answer: A
NEW QUESTION # 116
As shown in the figure, the operator's BGP/MPLS IP VPN backbone network builds SP through DP. If you want to implement user X If the two sites communicate through the BGP/MPLS IPVPN network, PE1 and PE2 must use a 32-bit masked loopback interface address to establish an MP-IBGP peer relationship.
- A. True
- B. False
Answer: A
NEW QUESTION # 117
Match the alarm severity to the severity of the fault and countermeasures
- A. Critical", Major-2, Minor-3, Warning-4 A
- B. Critical-3, Major-2, Minor-1, Warning-4
Answer: B
NEW QUESTION # 118
Which of the following statements about the MP_REACH_NLRI attribute of BGP4+ is correct? (Multiple choice)
- A. The length of the next hop address can be 16 or 3
- B. The AFI (address family) value is 2, which represents IPv6
- C. The NLRI field carries IPv6 routing prefix and mask information
- D. When the length of the next hop address is 16, the Network Address of Next Hop carries the link local address
Answer: A,B,C
NEW QUESTION # 119
The AS-External-LSA generated by a router is shown in the figure. Based on this LSA, which of the following descriptions are correct? (Multiple choice)
- A. The Route Tag value carried by this LSA is 1
- B. The cost value of other routers to reach 2000::3 is always 1
- C. This LSA is generated by converting NSSA LSA
- D. The router ID of the router is 10.0.3.3
Answer: A,B,D
NEW QUESTION # 120
When deploying MPLS/BGP IP VPN, which of the following descriptions is wrong about using BGP to exchange routing information between PEs and CEs?
- A. existCEIn the case of multi-homing, enableBGP ASThe number substitution function may cause routing loops that can be passed throughBGP SoDpreventVPNIntra-site routing loops
- B. whenPEandCEbetweenBGPWhen exchanging routing information, if twoVPNThe autonomous system the site is in uses the same privateASnumber, can be passed throughASThe number replacement function is to use any specifiedASreplace the received private network route with theASnumber to preventASRoutes are discarded due to duplicate numbers
- C. existHub&Spokescene, whenHub-CEandHub-PEuseIGPTimeSpoke-PEandSpake-CEcannot makeEBGP
- D. whenPEandCEbetweenBGPWhen exchanging routing information, you do not need toPEPerform private network route import on theBGPoperation
Answer: B
NEW QUESTION # 121
As shown in the figure, on the R1 router, network administrator A sends the routing entry to R2 through the routing policy After modifying the Local Preference value, you can control the path of traffic leaving the AS100
- A. wrong
- B. Correct
Answer: A
NEW QUESTION # 122
The figure shows the Router-LSA generated by a router. Which of the following statements are true based on the LSA?
- A. At least one interface on the router belongs to area 0.
- B. The router is an ABR.
- C. At least one interface on the router belongs to a stub area.
- D. The router is an ASBR.
Answer: A,B
NEW QUESTION # 123
When new features are added or the original performance needs to be optimized, or when problems with the current running version need to be solved, the device needs to be upgraded. At this time, a higher version of the system software needs to be loaded and the device needs to be restarted to achieve this. Huawei NetEngine AR series devices use the same software package, such as AR6120, AR6280, and AR6000V.
- A. True
- B. False
Answer: B
NEW QUESTION # 124
As shown in the figure, R1, R2, R3, and R4 are in the same PLs domain, and LDP is used to distribute IPLS labels between devices. R4 is the Egress LSR of the FEC 4.4.4.0/24. If you want to achieve R1 access
4.4.4.0/24, R4 does not need to query the label table but can know the forwarding priority of the data, then the outgoing label of R3 for the FEC should be:____. (Please fill in the Arabic numerals directly, without symbols)
Answer:
Explanation:
(0)
NEW QUESTION # 125
In the Hub&Spoke network shown in the figure, in order to achieve correct routing transmission, the administrator must manually configure the command peer 10.1.2.1() in the BGP-VPN_out view of the Hub-PE.
Answer:
Explanation:
allow-as-loop
NEW QUESTION # 126
Which of the following descriptions about OSPFv3 are correct? (Multiple choice)
- A. The flooding scope of LSA is added to the LSA message of OSPFv3
- B. OSPFv3 supports multiple processes on a link
- C. OSPFv3 Router LSA and Network LSA do not contain IP addresses
- D. In broadcast, NBMA, and P2MP networks, neighbors are no longer identified by IP addresses, but only by Router IDs.
Answer: A,B,C,D
NEW QUESTION # 127
Network administrator A wants to use AS-Path Fiter to match routing entries with the BGP routing attribute AS_PATH [100 200 300]. Network administrator A sorts out the four configurations in the figure. Which of the following configurations can satisfy the network administrator A's requirement? (Multiple choice)
- A. Method D
- B. Method B
- C. Method A
- D. Method C
Answer: B,C
NEW QUESTION # 128
On a stable network that requires fast route convergence, you can change the value of the interval at which OSPF LSAs are updated to 0 so that topology or route changes can be immediately advertised on the network through LSAs, which speeds up route convergence.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 129
In the absence of a header, the LDP adjacencies will trigger the establishment of LSPO based on the IP routing of the 32-bit address.
- A. True
- B. False
Answer: A
NEW QUESTION # 130
As shown in the figure, SF is enabled on all interfaces of the router, the cost value of the link is marked in the figure, and the Loopback0 interface of R2 is advertised in area 1, then the cost value of R1 reaching 10.0.2.2/32 is?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 131
As shown in the figure, when a network engineer is troubleshooting, he draws a schematic diagram of a multicast network. The IGIP version enabled by R1 and R2 is 2, PIM-SM is used as the multicast routing protocol, and other configurations are default configurations. The querier in the multicast network is ().
Answer:
Explanation:
R1
NEW QUESTION # 132
An enterprise network is shown in the figure. If CE2 is dual-owned by PE2 and PE3, a Type 5 LSA routing loop may occur. The loop can be prevented by setting the route-tag command on PE2 and PE3 devices. When the Route Tag of the route received by PE3 is the same as the local configuration, the route will be ignored.
- A. True
- B. False
Answer: A
NEW QUESTION # 133
In order to prevent hackers from attacking user equipment or network through MAC address, the MAC address of untrusted users can be configured as black hole MAC address to filter out illegal MAC
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 134
A company consists of a head office and two branch offices, and uses MPLS VPN technology to transmit private network routes. In the networking mode of HuB&Spoke. Branches can only send and receive routes to and from the head office, and branches cannot directly send and receive routes to each other. In order to achieve the above requirements, which of the following schemes can the setting of RT be?
- A. head office:Import Target 12:3; Export Targetr 3:12OBranchl:Import Target,3:12;Export Target 12:3OBranch2:Import Target: 3:12: Export Target: 12:3
- B. head office:Import Target: 2:2;Export Target:3:3oBranchl:Import Target:
3:3.Export Target: l:loBranch2:ImportTarget: 3:3; Export Target.2:2 - C. head office:Import Target 1:1, 2:2;Export Target: 3:3OBranchl:Import Target:3:3; Export Target: l:loBranch2:ImportTarget:3:3; Export Target:2:2
- D. head officeImport Target:l:l;Export Target: 3:3OBranchl:Import
Targeta:3:3;Export Target: l:loBranch2:Import Target: 3:3; Export Target:2:2
Answer: A,C
NEW QUESTION # 135
As shown in the figure, OSPF is enabled on all the routers. The IP address marked in the figure is the IP address of the loopbackO interface of the device. The LoopbackO of R1 and R2 is advertised in area 1, the LoopbackO of R4 is advertised in area 0, and the LoopbackO of R3 and R5E is advertised in area 0. In area 2, which of the following IP addresses can ping each other?
- A. 10.0.3.3and10.0.5.5 (same area1kind)
- B. 10.022and10.0.5.5 (Non-backbone area received3class received does not count)
- C. 10.0.4.4and10.022 (normal calculation3kind)
- D. 10.0.2.2and10.0.3.3 (Non-backbone area received3class received does not count)
Answer: A,C
NEW QUESTION # 136
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