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
As shown in the figure, RIR4 is one of the four routers in AS 123. They all run OSPE and realize the routing interconnection within the AS. Among them, the two network segments 10.1.1.0/24 and 10.4.4.0/24 are not published to OSPF. Now, R1 and R4 have established an IBGP peer relationship based on the Loopback0 interface, and published the network segments 10.1.1.0/24 and 10.4.4.0/24 to BGP respectively.
Which of the following methods can enable PC1 and PC2 to communicate with each other? (Multiple choice)
- A . Deploy policy routing on R1 and specify R2 as the next hop for traffic from PC1 to PC2.
- B . Run BGP on R2 and R3 and establish IBGP full interconnection in AS123
- C . On R1 and R4, import routes 10.1.1.0/24 and 10.4.4.0/24 into OSPF respectively.
- D . Activate MPLS and LDP on R1~R4 and establish LSPs for routes 1.1.1.1/32 and 4.4.4.4/32.
The business routes of an enterprise are transmitted in the network, and part of the configuration of PE1 and PE2 is shown in the figure. At this time, CE1 adds a new business network segment and announces it to Area 1 of OSPF 10.
In this scenario, which type of LSA will CE2 receive, which will contain the service network segment newly announced by CE1?
- A . Type 5 LSA
- B . Type 2 LSA
- C . Type 1 LSA
- D . Type 3 LSA
The route reflector and its clients form a cluster, using the unique Cluster ID in the AS as an identifier. When a route is reflected by the RR for the first time, if there is no Cluster_List attribute, the RR will add the local Cluster ID to the front of the Cluster_List. If a route already has the Cluster_List attribute, the RR will no longer modify the Cluster_List attribute.
- A . True
- B . False
In an IPLS network, when the S field value of the MPLS message received by the Egress device is (), it indicates that the label is the bottom label of the stack and IP forwarding is performed directly.
Based on the locally maintained LSDB, the device running the OSPF protocol calculates the shortest path tree with itself as the root through the SPF algorithm, and determines the next hop to the destination network based on this shortest path tree. If the network changes frequently, the maximum interval of the SPF calculation can be set to 0 to increase the speed of route convergence.
- A . True
- B . False
The concepts of RD and RT are introduced in BGP/MPLS IP VPN network. Which of the following descriptions about RD and RT are correct? (Multiple choice)
- A . The RD value is not used to identify the origin of a route, nor is it used to determine which VPN instance the route should be added to.
- B . A VPNv4 route can only contain one RD value and one RT value
- C . RD is used to resolve IPv4 address conflicts before adding it to the IPv4 address.
- D . VPNv4 address is 96 bits in total, of which the RD value is 64 bits long
If an OSPF router is set as a stub router, which of the following is the link metric in the LSA sent by the router?
- A . 100
- B . 65535
- C . 1
- D . 10
After troubleshooting the problem, the network engineer wrote a troubleshooting report. He simplified the actual networking into the network shown in the figure.
R1 and R2 both have OSPF enabled and serve as gateways for PC1 and PC2 respectively. Which of the following descriptions are correct? (Multiple choice)
- A . PC1 and PC2 cannot ping each other.
- B . R1 can ping 192.168.1.22
- C . R2 can ping 192.168.1.2
- D . R1 can ping 192.168.1.21
When the network changes, the DHCP Snooping binding table will not age immediately, so it needs to be cleared manually. Which of the following commands can the administrator use to clear the DHSP Snooping binding?
- A . reset dhcp snooping statistics global
- B . reset dhcp snooping user-bind ip-address
- C . reset saved-configuration
- D . dhcp snooping user-bind autosave
In the scenario shown in the figure, if you want to implement the backdoor link as a backup link, you can use the Sham Link function. Which of the following descriptions about Sham Link are wrong? (Multiple choice)
- A . When configuring a Sham Link, the administrator needs to specify the source/destination IP address of the link.
- B . Sham Link is equivalent to establishing an OSPF intra-area link between two PEs, ensuring that VPN traffic passes through the Backdoor link first
- C . Sham Link requires the administrator to enter the sham-link command in the area view of the normal OSPF process of the PE device to establish
- D . After the Sham Link is established, all LSAs flooded on it will be converted into Type 3 LSAs