最新的Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 - H12-831_V1.0-ENU免費考試真題
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?
正確答案: C
In the OSPF network shown in the figure, the link cost value has been marked in the figure. R1 has enabled OSPF IP FRR and configured the "maximum load-balancing 8" command in the OSPF process. If a service reaches 10.0.3.3/32 through the path R1-R5- R3, which of the following is the backup outbound interface of the service?
正確答案: D
In the network shown in the figure, R1 and R2 are configured with single-hop BFD detection. The network engineer found that the BFD session was Down, so he queried the BFD-related configurations of R1 and R2. The configuration information has been marked in the figure.
In addition, the network engineer performed the Ping 10.0.12.2 operation on R1, and the output information is shown in the figure.
Based on this, the possible reason for the BFD session going Down is that the packets with UDP port 4784 are rejected.
In addition, the network engineer performed the Ping 10.0.12.2 operation on R1, and the output information is shown in the figure.
Based on this, the possible reason for the BFD session going Down is that the packets with UDP port 4784 are rejected.
正確答案: B
In an MPLS L3VPN network, when forwarding traffic between two CE sites across the MPLS backbone, how many labels are typically imposed on the packet within the core?
正確答案: A
In the OSPFv3 network shown in the figure, area 1 is a stub area, area 2 is a common area, and area 3 is an NSSA area. The IPv6 address of the R5 Lopback0 interface is 2000::5/128, which is introduced into OSPFv3 through import. The Router ID of each device is 10.0.XX, where X is the device number.
Which of the following descriptions is correct?
Which of the following descriptions is correct?
正確答案: D
For high reliability purposes, the following LDP messages are transmitted through TCP: discovery messages, session messages, advertisement messages, and notification messages.
正確答案: A
The network administrator has deployed the IPSG function on the switch to prevent IP address spoofing attacks. Among the device interfaces shown in the figure, which interfaces will not perform IPSG checks after receiving packets? (Multiple choice)
正確答案: A,B,C
When the basic QinQ function is configured on a port of the switch, only when a message with a VLAN Tag is received from the port will the message be tagged with the default VLAN of the port, thereby achieving the purpose of expanding the VLAN space.
正確答案: A
Use the "display current-configuration | include0.2.*" command on the router to see all the information including "10.0.2" in the current configuration.
正確答案: B
In the OSPFv3 network shown in the figure, area 1 is a normal area. Which of the following descriptions are correct? (Multiple choice)
正確答案: A,B,D
R4's Router ID is 10.0.4.4. In R4's LSDB, the LSA shown in the figure is seen. The network engineer makes the following inferences based on the LSA. Which of them are correct? (Multiple choice)
正確答案: C,D
LSR (Label Switching Router) discovers LDP peers through the LDP discovery mechanism and establishes LDP sessions. Which of the following descriptions of LDP sessions are correct?
(Multiple choice)
(Multiple choice)
正確答案: A,B,C,D
If the cutover preparation is insufficient, which of the following problems may occur? (Multiple choice)
正確答案: A,B,C,D
In the OSPFv3 network shown in the figure, the interfaces of R1 and R2 both have two IPv6 addresses. Although the prefix lengths of the IPv6 addresses of R1 and R2 are different, they can still establish an OSPFv3 neighbor relationship. If R2 is the DR, then the Intra-Area-Prefix-LSA generated by R2 will contain four prefixes.
正確答案: B