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Huawei H12-891_V1.0-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Network Planning, Operations and Maintenance | 10% | - Network Planning
|
| Campus Network Solution | 25% | - Campus Network Deployment
|
| Datacom Basic Knowledge | 15% | - Network Architecture
|
| Network Automation and Programmability | 15% | - Automation Technologies
|
| Advanced Datacom Technologies and Applications | 35% | - Advanced Routing
|
Huawei HCIE-Datacom V1.0 Sample Questions:
What is correct about the multicast message forwarding?
- A. RPF check failure indicates that the multicast data packets are received from a suboptimal interface, but the interface still receives multicast traffic and forwards it downstream
- B. IGMP snooping function can not control the range of multicast traffic in the Ethernet flood
- C. The source address of the multicast message is the unicast address
- D. In the multicast transmission mode, the destination address of the message can specify the location of the receiver
Correct Answer: C 🗳️
What is the relationship between CIR, BC, and TC?
- A. CIR=BE/TC
- B. CIR=TC/BC
- C. TC=CIR/BC
- D. TC=BC/CIR
Correct Answer: D 🗳️
Regarding route introduction, what is the following description of the error?
- A. By default, OSPF introduces an external route with a default metric of 1, and the level-2 network of the ingested external route type type, Type2
- B. BGP supports both import and network when generating routes, and the network mode is more precise.
- C. Introducing IBGP routing in OSPF may cause routing loops
- D. ISIS, routes to Level After the 1 makes a route ingestion, if you do not manually configure the ingestion policy, a bad route will be formed.
Correct Answer: D 🗳️
How many bits are there in the label field of MPLS?
- A. 1
- B. 3
- C. 20
- D. 8
Correct Answer: C 🗳️
The following description of the characteristics of cross-domain VN-Optionc is correct?
- A. VPMV4 routes are not saved on the ASBR, and VPNv routes are not advertised to each other.
- B. Cross-domain VN-Optionc, which is not suitable for use when spanning multiple AS.
- C. VPN routes are exchanged directly between the ingress PE and egress PE and do not require an intermediate device to secure a circular VPN route.
- D. A maximum of two layers of tags need to be used in the message forwarding process.
Correct Answer: A,C 🗳️

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