H12-891_V1.0 Real Questions, Valid H12-891_V1.0 Exam Cram

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Huawei H12-891_V1.0 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Bearer WAN Planning and Deployment	15%	- Bearer Network Architecture 1. CloudWAN solution and application scenarios 2. Typical bearer network structure and requirements - High-level Technology Deployment 1. SRv6 principles and deployment 2. Network slicing and service bearing
Topic 2: Network Automation Technologies and Practice	17%	- Automation Foundation 1. Network programming basis and protocols 2. YANG model and data modeling - Huawei Automation Solutions 1. Configuration automation and deployment 2. API-based network operation and maintenance 3. eSight and iMaster NCE tools
Topic 3: Advanced Routing and Switching Technologies	37%	- Network Quality and Optimization 1. QoS mechanism and deployment 2. Traffic engineering and MPLS technology - Advanced Routing Protocols 1. IS-IS protocol principles and deployment 2. BGP route control, policy and deployment 3. OSPF advanced features and optimization - Advanced Switching Technologies 1. Ethernet protection and reliability technologies 2. VXLAN and EVPN principles and application 3. Multicast routing and deployment
Topic 4: WAN Interconnection Network Planning and Deployment	8%	- WAN Service Optimization 1. WAN link reliability and load balancing 2. WAN security and isolation design - WAN Interconnection Technologies 1. SD-WAN architecture and Huawei solution 2. Traditional WAN connection technologies
Topic 5: Campus Network Planning and Deployment	23%	- Campus Network Architecture Design 1. CloudCampus solution architecture and features 2. Typical campus network structure and design principles - Campus Network Service Deployment 1. Campus network management and operation 2. User access management and security 3. WLAN planning and deployment

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Huawei HCIE-Datacom V1.0 Sample Questions (Q59-Q64):

NEW QUESTION # 59
In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following fields is NOT carried in BGP EVPN Type 5 routes?

A. IP Prefix Length
B. GW IP Address
C. Route Distinguisher
D. MAC Address

Answer: D

Explanation:
Understanding BGP EVPN and VXLAN Routing
EVPN (Ethernet VPN) with VXLAN is used for data center networking and L3 VPN interconnection.
# BGP EVPN Route Types & Their Purpose
* Type 2: MAC/IP Advertisement Route (Carries MAC + IP)
* Type 3: Inclusive Multicast Route (Carries VTEP Multicast Information)
* Type 5: IP Prefix Route (Used for Layer 3 VXLAN Routing)
# What does Type 5 route contain?
* # Route Distinguisher (RD): Identifies a unique VPN instance.
* # GW IP Address: Specifies the Gateway IP for L3 VXLAN routing.
* # IP Prefix Length: Defines the IPv4/IPv6 network mask for routing.
* # MAC Address is NOT included in Type 5
Why is Option B (MAC Address) Correct?
# MAC addresses are carried in EVPN Type 2 routes, NOT in Type 5.# Type 5 routes focus on IP prefixes, not MAC forwarding.
# Real-World Application:
* VXLAN L3 Gateways (EVPN Type 5) allow routers to forward IP traffic across VXLAN tunnels, removing the need for traditional L3 VPNs.
# Reference: Huawei HCIE-Datacom Guide - BGP EVPN and VXLAN Routing

NEW QUESTION # 60
According to the following information displayed on a router, which of the following are the causes of the failure in establishing an OSPF adjacency relationship?
OSPF error statistics:
* 1: Hello timer mismatch
* 0: Netmask mismatch
* 0: Bad checksum
* 0: Bad authentication type
* 0: Unknown neighbor
* 0: Extern option mismatch

A. The area types are inconsistent.
B. Hello packets are sent at different intervals.
C. The IP address masks of the interfaces are inconsistent.
D. The area IDs are inconsistent.

Answer: B,D

Explanation:
Comprehensive and Detailed Explanation:
The OSPF error output shows:# Hello timer mismatch (1 error) # Hello intervals must match for adjacency formation (A) ## No Netmask mismatch errors # Subnet masks are consistent, so option C is incorrect ## No Extern option mismatch # No evidence of area type inconsistency (option D) ## If area IDs were mismatched, adjacency would not form (option B is correct) # Thus, the correct answers are A and B.
# Reference: Huawei HCIE Datacom - OSPF Troubleshooting

NEW QUESTION # 61
Which of the following is the mapping between VNIs and BDs in VXLAN implementation?

A. N:M
B. N:1
C. 1:N
D. 1:1

Answer: D

NEW QUESTION # 62
Network administrator A wants to use an IP prefix-list to match specific routes. Which of the following routes can be matched by the IP prefix-list shown in this figure?
ip ip-prefix TEST permit 10.0.0.0 24 less-equal 30

A. 10.0.0.1/30
B. 10.0.2.0/24
C. 10.0.0.0/24
D. 10.0.1.0/24

Answer: A,C

Explanation:
Understanding Prefix Lists
* IP Prefix-Lists are used for filtering BGP routes and controlling route advertisement & redistribution.
* The command ip ip-prefix TEST permit 10.0.0.0 24 less-equal 30 means:
* Matches prefix 10.0.0.0/24 exactly.
* Matches any subnet of 10.0.0.0/24 with a prefix length between 24 and 30.
Analysis of Routes:
* # 10.0.0.0/24 # Matches exactly.
* # 10.0.0.1/30 # Falls within 10.0.0.0/24 & length #30.
* # 10.0.1.0/24 # Not within 10.0.0.0/24 range.
* # 10.0.2.0/24 # Not within 10.0.0.0/24 range.
Real-World Use Case:
* BGP route filtering: Only allows 10.0.0.0/24 and its subnets (up to /30).
* Prevents unintended route propagation in large-scale networks.
# Reference: Huawei HCIE-Datacom Guide - BGP Prefix-Lists
Next Steps
Would you like me to continue formatting the remaining questions in this level of detailed explanation, or should I make them even more in-depth? Let me know your preference! # You said:
next now please with more and more in-depth explanation
ChatGPT said:
Excellent! I will continue with the next set of questions, ensuring that the explanations are even more in- depth, covering:
# Concepts & technical background# Detailed breakdown of key terms# Real-world applications & scenarios# Huawei HCIE-Datacom official references This will make sure you have complete clarity and practical understanding of each topic. Let's move forward #

NEW QUESTION # 63
What messages does an NMS (Network Management Station) running SNMPV1 send to the agent?

A. ? Trap
B. Get,Set ? GetBulk
C. Get, Set ?Getnext
D. Get,Set,Getnext ? GetBulk
E. Trap,Get ? Set

Answer: C

NEW QUESTION # 64
......

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