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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIE-Datacom V1.0 (Written Exam) |
| Exam Number: | H12-891_V1.0 |
| Real Exam Qty: | 60-70 |
| Passing Score: | 600/1000 |
| Available Languages: | English, Chinese |
| Exam Duration: | 90 minutes |
| Exam Format: | Drag-and-drop, Fill-in-the-blank, Multiple-choice, True/false, Single-choice |
| Related Certifications: | HCIE-Datacom V1.0 (Lab Exam) H12-892_V1.0 HCIP-Datacom-Core Technology |
| Exam Price: | 300 USD |
| Certificate Validity Period: | 3 years |
| Recommended Training: | Huawei Official Training - HCIE-Datacom V1.0 |
| Exam Registration: | Huawei Talent Official Pearson VUE |
| 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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Huawei H12-891_V1.0 Exam is a challenging certification test that requires a deep understanding of data communication technologies and the ability to implement them in real-world scenarios. H12-891_V1.0 exam is suitable for those who want to improve their knowledge and skills related to data communication technologies and want to specialize in Huawei Datacom products. HCIE-Datacom V1.0 certification is ideal for network engineers, IT professionals, and designers who want to build and maintain complex and secure data communication systems.
NEW QUESTION # 282
As shown in the figure, the neighbor relationship between R1 and R2 has just been established, and the database synchronization process between R1 and R2 is correct.
Answer: C
NEW QUESTION # 283
Which of the following statements about the SP scheduling algorithm is incorrect?
Answer: B
Explanation:
Comprehensive and Detailed In-Depth
The Strict Priority (SP) scheduling algorithm always gives preference to high-priority queues.
A: Correct. SP scheduling may lead to queue starvation because low-priority queues might never get serviced if high-priority traffic is constant.
B: Correct. SP always schedules the highest-priority queue first.
C: Correct. Among multiple low-priority queues, if SP is combined with FIFO (First In, First Out), packets that arrive first are forwarded first.
D: Incorrect. The SP algorithm does not guarantee minimum bandwidth for lower-priority queues. It prioritizes high-priority queues regardless of bandwidth configuration, which can lead to starvation of lower-priority traffic. To ensure minimum bandwidth, a Weighted Fair Queuing (WFQ) or CBWFQ (Class-Based Weighted Fair Queuing) algorithm would be more suitable.
Reference:
Huawei HCIE Datacom Official Certification Guide
Huawei QoS Configuration and Implementation Guide
NEW QUESTION # 284
The path of an SR-MPLS TE tunnel can be calculated by the controller or tunnel ingress.
Answer: B
Explanation:
Understanding SR-MPLS TE (Segment Routing MPLS Traffic Engineering)
#What is SR-MPLS TE?
Segment Routing (SR) replaces traditional MPLS LDP/RSVP-TE signaling.
UsesSR-TE policiesto define network pathswithout requiring per-flow state on intermediate routers.
#How is the SR-MPLS TE Path Calculated?
#By the SDN Controller (Centralized Path Computation)
The controller (e.g.,Huawei iMaster NCE) calculates theoptimal SR pathbased on:
Bandwidth requirements
Latency constraints
Traffic policies
The controllerthen delivers the SR policy to the ingress router.
#By the Ingress Router (Distributed Path Computation)
Theingress routercomputes theSR path dynamicallybased onlocal constraints.
This method is usefulwhen no centralized controller is available.
Why is the Answer TRUE?
#Both centralized (controller-based) and distributed (ingress router-based) path computation are supported in SR-MPLS TE.
Real-World Application:
5G and Cloud WANs:Centralized path optimizationreduces congestion dynamically.
Enterprise Networks:Local path computation ensuresfast rerouting in case of failures.
#Reference:Huawei HCIE-Datacom Guide - SR-MPLS TE and Path Computation Methods
NEW QUESTION # 285
SR-MPLS uses the MPLS forwarding plane, and therefore requires MPLS to be enabled. Which of the following conditions must be met for MPLS to be automatically enabled on an interface? (Select all that apply)
Answer: B,C
Explanation:
To automatically enable MPLS on an interface inSR-MPLS:
Segment routing must be enabled globallyin thesystem view##
Segment routing must also be enabled under the IGP process, andIGP (OSPF or IS-IS) must be enabled on the interface## Clarifications:
SRGB (Segment Routing Global Block)configuration defines SID ranges butdoes not trigger MPLS enablement## Static adjacency labelsare advanced options and do not auto-enable MPLS ## Correct answers: B, D
NEW QUESTION # 286
What is the correct description of the scene shown in the following figure?
Answer: C,D
NEW QUESTION # 287
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