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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIE-Datacom V1.0 (Written Exam) |
| Exam Number: | H12-891_V1.0 |
| Exam Price: | 300 USD |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | 60-70 |
| Certificate Validity Period: | 3 years |
| Related Certifications: | HCIP-Datacom-Core Technology HCIE-Datacom V1.0 (Lab Exam) H12-892_V1.0 |
| Passing Score: | 600/1000 |
| Exam Format: | Drag-and-drop, Fill-in-the-blank, True/false, Multiple-choice, Single-choice |
| Available Languages: | English, Chinese |
| Recommended Training: | Huawei Official Training - HCIE-Datacom V1.0 |
| Exam Registration: | Pearson VUE Huawei Talent Official |
| Sample Questions: | Huawei H12-891_V1.0 Sample Questions |
| Exam Way: | Online proctored or onsite at authorized test centers |
| Pre Condition: | Recommended to hold HCIP-Datacom-Core Technology certification; 5+ years of relevant network engineering experience suggested; must pass written exam before taking lab exam |
| Official Syllabus URL: | https://e.huawei.com/en/talent/certification/exam/H12-891_V1.0 |
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The Huawei H12-891_V1.0 exam consists of multiple-choice questions that cover a wide range of topics related to data communication technologies, including network architecture and design, network protocols, network security, network management, and more. H12-891_V1.0 Exam is designed to test the candidate's ability to solve complex problems related to data communication technologies and to demonstrate their ability to design and implement solutions that meet the needs of their clients.
NEW QUESTION # 29
The channelized sub-interface and FlexE technologies both can be used to implement network slicing, but the application scenarios of the two technologies are slightly different. Which of the following statements about the two technologies are correct?
Answer: A,B,D
Explanation:
Network Slicing Using Channelized Sub-Interfaces and FlexE
Both channelized sub-interfaces and FlexE (Flexible Ethernet) are used for network slicing, but they have different application scenarios:
✅ A. Channelized sub-interface is recommended for interfaces with bandwidth < 50 Gbit/s.
Channelized sub-interfaces split a physical interface into multiple logical sub-interfaces.
Best for lower-bandwidth links (<50 Gbit/s).
✅ B. FlexE is recommended for 50GE and higher-rate interfaces.
FlexE divides a high-bandwidth physical link (e.g., 100GE, 400GE) into multiple virtual slices.
Used in high-speed backbone and data center networks.
✅ C. Only FlexE-based network slicing can be deployed across OTN devices.
FlexE is compatible with Optical Transport Network (OTN) and can be used for long-haul slicing across OTN.
❌ D. Only channelized sub-interface-based network slicing can be deployed across MSTP devices.
Incorrect! While MSTP supports channelized interfaces, FlexE is not restricted to MSTP deployment.
Reference from Huawei HCIE-Datacom Documentation:
Huawei FlexE Technology Whitepaper - Network Slicing in Transport Networks HCIE-Datacom Training Material - Channelized Sub-Interface and FlexE in Network Slicing
NEW QUESTION # 30
What is the relationship between CIR, BC and TC? (single select)
Answer: A
NEW QUESTION # 31
An SR-MPLS Policy needs to divert service traffic to a tunnel for forwarding. If traffic from various services is destined for the same address, which of the following traffic diversion modes is recommended to ensure the quality of each service?
Answer: A
Explanation:
Traffic Diversion in SR-MPLS Policy
SR-MPLS Policies use traffic steering mechanisms to direct specific flows to Segment Routing paths (SR Policies). When multiple services share the same destination address, color-based traffic diversion ensures differentiated service treatment.
# B. Color-based traffic diversion (Correct Answer)
* Traffic is classified based on "color" (a BGP-SR policy attribute) and mapped to different SR- MPLS tunnels.
* Different colors represent different paths (e.g., high-priority services can use an optimized low- latency path).
* This method ensures service quality by directing traffic according to policy-based routing decisions.
NEW QUESTION # 32
In broadcast networks, elections to DIS begin only after a neighbor relationship has been established
Answer: A
NEW QUESTION # 33
Mainstream Layer 2 technologies such as VXLAN, TRILL, NVGRE and MPLS
Answer: A
NEW QUESTION # 34
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