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Huawei H12-891_V1.0 (HCIE-Datacom V1.0) exam is a comprehensive certification program that is recognized globally. HCIE-Datacom V1.0 certification demonstrates that a candidate has the knowledge, skills, and expertise required to design, implement, maintain, and troubleshoot complex data communication networks. HCIE-Datacom V1.0 certification program is ideal for network engineers, network administrators, and IT professionals who want to enhance their career prospects and advance their skills in the field of data communication.

Huawei H12-891_V1.0 (HCIE-Datacom V1.0) certification is recognized globally as a mark of excellence in the field of data communication. It is an industry-standard certification that demonstrates a professional's expertise in data communication technologies and their ability to design, implement, and manage complex networks. Holding this certification can lead to better job opportunities, higher salaries, and increased professional credibility.

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The HCIE-Datacom V1.0 certification exam covers a wide range of topics related to data communication technologies, including network design and planning, network security, network virtualization, network optimization, and network troubleshooting. Candidates who pass the exam demonstrate their ability to design, implement, and manage complex data communication networks.

Huawei HCIE-Datacom V1.0 Sample Questions (Q53-Q58):

NEW QUESTION # 53
In Huawei SD-WAN Solution, which of the following tunneling technologies is used to establish data channels?

A. GRE over IPsec
B. IPsec
C. MPLS
D. WLAN

Answer: A,B

Explanation:
Understanding Huawei SD-WAN Tunneling Technologies
Huawei SD-WAN uses secure tunneling to connect branches, data centers, and cloud services.
# Tunneling Technologies in SD-WAN:# IPsec (Answer B) # Provides secure encrypted tunnels over public or private networks.# GRE over IPsec (Answer D) # Encapsulates traffic inside GRE, then encrypts with IPsec, enabling support for multicast and non-IP traffic.
# A. WLAN (Incorrect Choice) # WLAN is a wireless technology, not a tunneling protocol.# C. MPLS (Incorrect Choice) # MPLS is a core network transport technology but is not used to establish SD-WAN data channels directly.
Why are Answers B and D Correct?
# Huawei SD-WAN primarily uses IPsec for data encryption.# GRE over IPsec is used when supporting multicast or dynamic routing protocols over tunnels.
# Reference: Huawei HCIE-Datacom Guide - SD-WAN Tunneling Mechanisms

NEW QUESTION # 54
The ingress VTEP performs both Layer 2 and Layer 3 table lookup for packet forwarding. The forwarding mode is _____ IRB forwarding. (Capitalize the first letter.)

Answer:

Explanation:
Symmetric
Explanation:
Understanding IRB (Integrated Routing and Bridging) Forwarding in VXLAN VXLAN (Virtual Extensible LAN) supports Layer 2 and Layer 3 forwarding between Virtual Network Identifiers (VNIs).
* IRB (Integrated Routing and Bridging) enables inter-subnet communication within a VXLAN fabric.
* There are two modes of IRB forwarding:
* Symmetric IRB
* Asymmetric IRB
Why the Answer is "Symmetric" IRB Forwarding?
# Ingress VTEP performs both Layer 2 and Layer 3 lookups:
* Symmetric IRB requires both ingress and egress VTEPs to perform Layer 3 lookups.
* The ingress VTEP (source gateway) performs a Layer 2 MAC lookup, then a Layer 3 lookup to find the destination VTEP.
* The egress VTEP (destination gateway) performs another Layer 3 lookup before forwarding the packet to the destination.
# Asymmetric IRB does not perform two lookups at the ingress VTEP:
* In Asymmetric IRB, the ingress VTEP performs both Layer 2 and Layer 3 forwarding and sends a Layer 2 packet to the egress VTEP.
* The egress VTEP only does a Layer 2 lookup, not a Layer 3 lookup.
* Since the question states that both L2 and L3 lookups occur at the ingress VTEP, asymmetric IRB is incorrect.
# Why Symmetric IRB is More Common?
* Scalability: Supports any-to-any communication across VXLAN networks.
* More Efficient Routing: Uses Layer 3 VXLAN encapsulation, ensuring efficient routing between VNIs.
# Reference: Huawei HCIE Datacom - VXLAN Symmetric and Asymmetric IRB Forwarding

NEW QUESTION # 55
Why is BGP an enhanced distance vector routing protocol?

A. NEXT_HOP is a recognized mandatory attribute
B. BGP cannot accept routes that carry a local AS number in the AS_PATH
C. BGP uses the ASPATH attribute to record all autonomous system numbers that a route passes through into an AS list, and based on that attribute, routes with shorter AS-PATH are preferred
D. According to the routing rules of BGP routing, the route with lower MED is preferred

Answer: C

NEW QUESTION # 56
In a shared network, what mechanism does PIM-SM use to prevent duplicate traffic?( Single choice questions).

A. Join/Prune mechanism
B. Register mechanism
C. Assert mechanism
D. BSR/RP mechanism

Answer: C

NEW QUESTION # 57
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

Answer: D

NEW QUESTION # 58
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Free PDF Quiz 2025 Huawei High-quality H12-891_V1.0: New HCIE-Datacom V1.0 Test Practice

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Huawei HCIE-Datacom V1.0 Sample Questions (Q53-Q58):

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