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Huawei H12-831-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Advanced BGP Features | 20% | - BGP path selection - BGP route attributes - BGP security and optimization |
| Topic 2: Network O&M, Troubleshooting and Cutover | 15% | - Network monitoring and management - Network migration and cutover - Fault diagnosis and troubleshooting |
| Topic 3: Advanced Ethernet Technologies | 15% | - Link aggregation and high availability - VLAN and trunk technologies - STP/RSTP/MSTP |
| Topic 4: MPLS and VPN Technologies | 15% | - MPLS fundamentals - MPLS L2VPN basics - MPLS L3VPN |
| Topic 5: IPv6 Routing Technologies | 15% | - IPv6 IGP and BGP - IPv4/IPv6 coexistence - IPv6 addressing and protocols |
| Topic 6: Advanced IGP Features | 20% | - Route control and filtering - OSPF advanced features - IS-IS advanced features |
Huawei HCIP-Datacom Sample Questions:
Regarding the label space of MPLS, which of the following description is wrong?
- A. If the outgoing label value is 0, the router will directly discard the packet
- B. Above 1024 is the label space shared by dynamic signaling protocols such as LDP, RSVP-TE, MP-BGP, etc.
- C. 16~1023 is the label space shared by static LSP and static CR-LSP
- D. When the penultimate hop LSR performs label switching, if the value of the label after the exchange is found to be 3, the label will be popped by default and the packet will be sent to the last hop
Correct Answer: A 🗳️
A campus has deployed IPv6 for service testing. There are 4 routers in the network, running OSPFV3 to realize the interconnection of IPv6 networks.
As shown in the figure, an engineer checked the LSDB of R2 and intercepted one of the Link-LSAs.
Which of the following statements about the description of this LSA is correct? (Multiple choice)
- A. The router that generated this LSA is R2
- B. The LSA shows that R2 does not support external routing, but participates in IPv6 routing calculation
- C. The IPv6 address 2001 of the R2 interface GE0/0/0
- D. The link-local address of R2 interface GE0/0/0 is: FE80
Correct Answer: A,C,D 🗳️
Which of the following reasons may cause the hosts in the same VLAN of the local area network to fail to communicate with each other? (Multiple choice)
- A. Switch MAC address learning error
- B. Port isolation is configured on the switch
- C. The interface is damaged by artificial shutdown or physical interface
- D. Wrong port and MAC address binding is configured on the switch
Correct Answer: A,B,C,D 🗳️
As shown in the figure, configure a backhaul summary route 10.0.0.0/24 on border route R1.
The next hop points to R2. At the same time, the default route to the external network is configured. At this point, routing black holes will appear. Which of the following statements about routing black holes is correct? (Multiple choice)
- A. Routing black hole has no effect on the network and can be ignored
- B. Precise routing summary can avoid routing black hole
- C. If the terminal in the network sends data packets to the network segment that does not appear on the internal network, a loop will occur
- D. Configuring black hole routing can solve the routing black hole problem
Correct Answer: B,C,D 🗳️
If the display current-configuration can reveal the IS-IS configuration, but there is no IS-IS configuration in the display saved-configuration, then the explanation?
- A. Flash running IS-IS configuration, not saved to memory
- B. The running IS-IS configuration in memory has been saved to Flash
- C. No IS-IS command entered
- D. IS-IS configuration running in memory, not saved to Flash
Correct Answer: D 🗳️
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