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Huawei H12-891_V1.0-ENU Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Advanced Networking Technologies | - IPv6 deployment and transition - MPLS and VPN technologies |
| IP Network Fundamentals | - Network architecture and protocols - TCP/IP and OSI model |
| Routing and Switching | - OSPF / IS-IS routing principles - BGP fundamentals and policy control |
| Network Security | - Basic security mechanisms - Network attack prevention and isolation |
| Network Automation and Programmability | - SDN concepts - Network automation tools and APIs |
Huawei HCIE-Datacom V1.0 Sample Questions:
The following statement about IPSec VPN is correct? qo
- A. Two routers establish an IPSec VPN in brutal mode, so that the two devices can interact with a minimum of 4 messages to establish a tunnel.
- B. The two routers can establish OSPF neighbor relations and exchange intranet routes through the IPSec VPN tunnel
- C. The two routers establish IPSecVPN in main mode, and from the 5th packet (included), the payload's data will be encrypted.
- D. Brutal mode can support NAT traversal, while main mode does not support NAT traversal.
Correct Answer: C 🗳️
An engineer used 2 routers to test IPv6 services and simulated the interconnection between headquarters and branches by running BGP4+. The network logic topology is shown in the figure, regarding the delivery of IPv6 routes between two devices, which of the following statements is wrong?
- A. When a route is passed, it carries a recognized mandatory attribute such as AS_Path
- B. When routing is passed, the Next_Hop attribute must be an IPv6 global unicast address
- C. BGP4+ passes routing information between peers via Update packet
- D. If the Update message carries the MP_REACH_NLRI attribute, it means that the advertisement is reachable route
Correct Answer: B 🗳️
Regarding MP-BGP, the following description is wrong?
- A. The message type and VPNv4 routing publishing policy for MP-BGP are the same as for BGP-4
- B. MP-BGP advertises VPNv4 through two attributes, MP_REACH_NLRI and MP_UNREACH_NLRI Route
- C. PE and CE are routed through BGP interaction, you need to create a BGP process on ce for each VPN instance
- D. Radio AMP-BGP needs to assign a private label to the VPNv4 route
Correct Answer: C 🗳️
Which of the following configurations is the correct OSPFv3 route aggregation configuration:
- A. [Huawei]ospfv3 1 [Huawei-ospfv3-1J]area 1 [Huawel-ospfv3-1-area-0001]abr-summary fc00:0-0:48 cost 400
- B. [Huawei]ospfv3 1 [Huawei-ospfv3-1]asbr-surmary fcO0-0:0::48 3 cost 20 tag 100
- C. (Huaweijospf3 1 Huawei-ospfv3-1Jarea 1 Huawei-ospfv3-1-area-0001]asbr-sumary fcO0:0:0: 48 cost 20 tag 100
- D. [Huawei] interface gigabitethernet 1/0/0 [Huawei-GigabitEthernet1/0/0]asbr-surmary fcO0-0:0:48 cost 20
- E. [Huawei]ospfv3 1 [Huawei-ospfv3-1]abr-surmary fcO0:0:0:48 cost 400
Correct Answer: A,B 🗳️
As shown in the figure, the PPP link between R1 and R2 is not in the same network segment, but the R1 and R2 direct connectors can communicate, and the Ethernet link cannot communicate under the same planning, why?
- A. The data packets of the interconnect POS ports of R1 and R2 do not need to encapsulate ethernet headers and do not need to use ARP to request MAC addresses
- B. The interconnect POS ports of R1 and R2 learn the 32-bit host route for each other's direct connections through IPCP
- C. The interconnect POS port of RI and R2, through LCP learns the MAC address of the opposite termination, does not need to use ARP to request the MAC address
- D. The interconnect POS ports of R1 and R2 learn the 24-bit subnet route of each other's direct connection ports through IPCP
Correct Answer: A,B 🗳️
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