Huawei H12-831_V1.0 Practice Exams
Last updated on Oct 22,2026- Exam Code: H12-831_V1.0
- Exam Name: HCIP-Datacom-Advanced Routing & Switching Technology V1.0
- Certification Provider: Huawei
- Latest update: Oct 22,2026
In the BGP/MPLS IP VPN network, in order to retain the imported OSPF routing information, BCP carries the Domain ID in the MP_REACH_NLRI attribute to identify and distinguish different OSPF domains.
- A . True
- B . False
In the network shown in the figure, OSPF protocol is deployed between R2 and R1, and OSPF protocol is also enabled on GE0/0/1 interface of R2. IS-IS protocol is deployed between R2 and R3. In order for R1 to obtain the route to 10.0.3.3/32, IS-IS route is introduced into OSPF route on R2. Then, in the routing table of R1, the next hop address to 10.0.3.3/32 is ().
The network administrator has deployed the DHCP snooping function on the access switch. Which of the following solutions can be used to reduce the impact of attackers maliciously applying for IP addresses and causing DHCP Server denial of service? (Multiple choice)
- A . Enable the device to generate static MAC entries for interfaces based on the DHCP Snooping binding table.
- B . Configure DHCP Snooping to check the CHADDR field in the DHCP Request message
- C . Set the interface on the switch that is connected to the legitimate DHCP server as a trusted interface
- D . Limit the number of MAC addresses learned by the switch interface through DHCP Snooping
If the cutover preparation is insufficient, which of the following problems may occur? (Multiple choice)
- A . A single board suddenly fails, but there is no spare board
- B . Failure to arrive at the cutover site at the scheduled time
- C . If you do not bring a network cable tester and the port cannot be UP, you cannot determine whether it is a port hardware failure or a cable failure.
- D . Cutover failed, configuration files were not backed up, resulting in service rollback failure
Use the "display version | begin uptime" command on the router, and the first word in the output information is "uptime"
- A . True
- B . False
As the scale of enterprise network continues to expand, a certain enterprise plans to move the dispersed servers to the same computer room for unified management. At a certain stage of the relocation, the work content is hardware relocation. At this stage, network engineers do not need to perform equipment commissioning, so network engineers do not need to formulate a cutover plan.
- A . True
- B . False
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
In the OSPFv3 network shown in the figure, area 1 is the Totally Stub area, area 2 is the normal area, and area 3 is the Totally NSSA area. The IPv6 address of the R6 Lopback0 interface is 2000::6/128. The Router ID of each device is 10.0.XX, where X is the device number.
When all links are normal, which of the following descriptions are correct by default? (Multiple choice)
- A . The path for R4 to send a data packet to 2000::6 may be R4-R1-R3-R6
- B . The path that R4 sends the data packet to reach 2000::6 may be R4-R2-R6
- C . The path for R4 to send a data packet to 2000::6 may be R4-R1-R5-R3-R6
- D . The path for R4 to send a data packet to 2000::6 may be R4-R1-R2-R6
In the network shown in the figure, R1, R2, R4, and R5 run IS-IS in area 49.0001, and R3 and R6 run IS-IS in area 49.0002. "iport-route isis level-2 into level-1" is configured on R2. Within AS 65000, R1, R3, R4, and R6 all establish IBGP neighbor relationships with R2 and R5, of which R2 and R5 are RRs, and R1, R4, R3, and R6 are clients. R2 and R5 also establish an IBGP neighbor relationship and configure the same Cluster ID. The IBGP neighbor relationship is established using the Loopback0 interface. The IP address of the Loopback0 interface of each device is 10.0.X.X/32, and the Router TD is 10.0.X.X, where X is the group number of the device. R1 and R4 import the external network 192.168.1.0/24 into BGP, and R3 and R6 import the external network 192.168.2.0/24 into BGP.
Which of the following descriptions are correct by default? (Multiple choice)
- A . There is a valid route to 192.168.2.0/24 in R3’s BGP routing table
- B . There are two valid routes to 192.168.1.0/24 in R5’s BGP routing table
- C . R4’s BGP routing table has three valid routes to 192.168.2.0/24
- D . R2’s BGP routing table has three valid routes to 192.168.1.0/24
As shown in the figure, this is an MPLS message with multiple layers of labels nested. Which of the following is the correct value of the S field at the three positions S1, S2, and S3?
- A . S1=2, S2=1, S3=0
- B . S1=1, S2=1, S3=0
- C . S1=3, S2=2, S3=1
- D . S1=0, S2=0, S3=1