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Huawei H12-831_V1.0 (HCIP-Datacom-Advanced Routing & Switching Technology V1.0) Exam is a certification that focuses on advanced networking and switching technology. HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification is designed for IT professionals who want to deepen their understanding of data communication, routing, and switching. It is recommended for network engineers, network administrators, and network architects who want to enhance their skills and knowledge in managing enterprise-level networks.
Huawei H12-831_V1.0 is a highly recognized certification in the industry, and successfully passing the exam can open up lucrative career opportunities for the candidates. HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification is recognized worldwide, and many prestigious organizations consider it as a benchmark for hiring network engineers and IT professionals.
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Huawei H12-831_V1.0 Exam covers a wide range of topics related to data communication and networking, including advanced routing and switching technologies, network security, virtualization, and cloud computing. H12-831_V1.0 exam is designed to test the knowledge and skills of IT professionals in these areas and to ensure that they have the necessary expertise to design, implement, and manage complex data communication and networking systems.
NEW QUESTION # 90
On the network shown in the figure, IS-IS runs on R1, R2, R4, and R5, and the area ID is 49.0001. IS-IS runs on R3 and R6, and the area ID is 49.0002. The import-route isis level-2 into level-1 command is configured on R2.
In AS 65000, R1, R3, R4, and R6 each establish iBGP peer relationships with R2 and R5. R2 and R5 are Route Reflectors (RRs), and R1, R4, R3, and R6 are clients.
The iBGP peer relationships are established using Loopback0. The IP address of Loopback0 on each router is
10.0.X.X/32, and the router ID is 10.0.X.X, where X is the number of the router.
R1 and R4 import the external route 192.168.1.0/24 to BGP through the import-route command, and R3 and R6 import the external route 192.168.2.0/24 to BGP through the import-route command.
Which of the following statements are true?
Answer: B,D
Explanation:
Comprehensive and Detailed In-Depth Explanation:
Understanding the BGP and IS-IS Network Topology in the Question:
* IS-IS Areas:
* Area 49.0001 (Level-1 IS-IS): Contains R1, R2, R4, R5.
* Area 49.0002 (Level-2 IS-IS): Contains R3, R6.
* R2 acts as an ABR (Area Border Router) and redistributes routes between Level-1 and Level-2 using import-route isis level-2 into level-1.
* BGP Route Reflection & Peering:
* R2 and R5 are Route Reflectors (RRs).
* iBGP peering is established among all routers (R1, R2, R3, R4, R5, R6).
* R1 and R4 import 192.168.1.0/24 into BGP, meaning this prefix will be advertised to all iBGP peers.
* R3 and R6 import 192.168.2.0/24 into BGP, meaning this prefix will also be advertised to all iBGP peers.
Route Distribution Analysis:
A). The route 192.168.2.0/24 in the routing table of R4 has two next hops. # (Correct)
* R3 and R6 import 192.168.2.0/24 into BGP.
* R2 and R5 (Route Reflectors) learn this route and reflect it to their clients (R1, R3, R4, R6).
* R4 receives two valid paths to 192.168.2.0/24 via R2 and R5 (both iBGP peers).
* Since both routes have the same BGP attributes and cost, they are installed as equal-cost paths in R4 ' s routing table.
# Statement A is correct: The routing table of R4 has two next hops for 192.168.2.0/24.
B). The routing table of R1 contains two equal-cost default routes. # (Incorrect)
* In an IS-IS Level-1-2 setup, default routes are usually provided to Level-1 routers from an ABR (like R2).
* However, the question does not mention that R1 is receiving two default routes or that it is in an equal- cost multipath (ECMP) scenario.
* R1 may have only one default route, depending on route preference and cost.
# Statement B is incorrect: The routing table of R1 does not necessarily contain two equal-cost default routes.
C). The routing table of R4 contains two equal-cost default routes. # (Incorrect)
* Similar to R1, R4 is also a Level-1 router in IS-IS.
* If R4 were receiving default routes from multiple ABRs (R2 and R5), then it could have equal-cost paths.
* However, there is no indication that R4 is receiving two default routes in this scenario.
# Statement C is incorrect: The routing table of R4 does not necessarily contain two equal-cost default routes.
D). The routing table of R1 contains the route 192.168.2.0/24. # (Correct)
* R3 and R6 import 192.168.2.0/24 into BGP.
* R2 and R5 (Route Reflectors) reflect this route to their iBGP peers, including R1.
* Since R1 is an iBGP client of R2 and R5, it will receive 192.168.2.0/24 and install it in its routing table.
# Statement D is correct: The routing table of R1 contains the route 192.168.2.0/24.
Final Conclusion:
# A. The route 192.168.2.0/24 in the routing table of R4 has two next hops.
# B. The routing table of R1 does not necessarily contain two equal-cost default routes.
# C. The routing table of R4 does not necessarily contain two equal-cost default routes.
# D. The routing table of R1 contains the route 192.168.2.0/24.
Thus, the correct answers are: A, D.
Reference:
HCIP-Datacom-Advanced Routing & Switching Technology V1.0 - BGP Route Reflection and iBGP Route Distribution Huawei Official HCIP-Datacom Study Guide - IS-IS Route Redistribution into BGP Huawei Documentation on BGP Route Reflectors and Import-Route Behavior
NEW QUESTION # 91
In the network shown in the figure below, if you want to implement a remote LDP session between SWA and SWC, which statement is correct?
Answer: C
NEW QUESTION # 92
In the figure, an administrator needs to enable MPLS LDP on R1 to R4. Which of the following configurations of R1 is correct?
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
To determine the correct configuration, we need to analyze how MPLS LDP (Label Distribution Protocol) is correctly enabled on a Huawei router.
1. Required Steps to Enable MPLS LDP on R1
To enable MPLS LDP on R1 and establish LDP sessions, the following steps must be followed:
# Step 1: Configure the MPLS LSR ID (Loopback IP recommended)
* MPLS LSR ID is a unique identifier for the Label Switch Router (LSR).
* Command:
shell
CopyEdit
mpls lsr-id 1.1.1.1
* Why?
* The LSR ID must be configured for LDP to function properly in an MPLS network.
* It is usually set to a loopback address for stability and consistency.
# Step 2: Enable MPLS Globally
* Command:
shell
CopyEdit
mpls
* Why?
* This enables MPLS forwarding on the device.
# Step 3: Enable MPLS LDP Globally
* Command:
shell
CopyEdit
mpls ldp
* Why?
* LDP is needed for label distribution in the MPLS domain.
* Without this, routers cannot exchange MPLS labels.
# Step 4: Enable MPLS and LDP on the Required Interface
* Command:
shell
CopyEdit
interface gigabitethernet 0/0/1
mpls
mpls ldp
* Why?
* MPLS must be enabled on interfaces that participate in MPLS forwarding.
* LDP must also be enabled on these interfaces to distribute labels over MPLS links.
2. Analyzing the Answer Choices
# Option B (Correct)
shell
CopyEdit
[R1] mpls lsr-id 1.1.1.1 # (Sets LSR ID)
[R1] mpls # (Enables MPLS globally)
[R1-mpls] quit
[R1] mpls ldp # (Enables LDP globally)
[R1-mpls-ldp] quit
[R1] interface gigabitethernet 0/0/1
[R1-GigabitEthernet0/0/1] mpls # (Enables MPLS on interface)
[R1-GigabitEthernet0/0/1] mpls ldp # (Enables LDP on interface)
[R1-GigabitEthernet0/0/1] quit
* This configuration correctly enables MPLS LDP on R1.
* All required steps are followed, including the LSR ID, MPLS, LDP, and interface activation.
# Option A (Incorrect)
shell
CopyEdit
[R1] mpls lsr-id 1.1.1.1
[R1] mpls
[R1-mpls] quit
[R1] mpls ldp
[R1-mpls-ldp] quit
[R1] interface gigabitethernet 0/0/1
[R1-GigabitEthernet0/0/1] mpls #
[R1-GigabitEthernet0/0/1] quit # (Missing "mpls ldp" under interface)
* Missing mpls ldp under interface configuration.
* Without this, the interface will not establish an LDP session # Incorrect.
# Option C (Incorrect)
shell
CopyEdit
[R1] mpls
[R1-mpls] quit
[R1] mpls ldp
[R1-mpls-ldp] quit
[R1] interface gigabitethernet 0/0/1
[R1-GigabitEthernet0/0/1] mpls
[R1-GigabitEthernet0/0/1] mpls ldp
[R1-GigabitEthernet0/0/1] quit
* Missing mpls lsr-id 1.1.1.1.
* LSR ID is critical for LDP sessions # Incorrect.
# Option D (Incorrect)
shell
CopyEdit
[R1] mpls lsr-id 1.1.1.1
[R1] mpls
[R1-mpls] quit
[R1] interface gigabitethernet 0/0/1
[R1-GigabitEthernet0/0/1] mpls
[R1-GigabitEthernet0/0/1] mpls ldp
[R1-GigabitEthernet0/0/1] quit
* Missing global MPLS LDP configuration (mpls ldp).
* Without enabling LDP globally, labels will not be distributed.
* This makes LDP sessions fail. # Incorrect.
NEW QUESTION # 93
During the preparation stage of the cutover project, software and hardware testing needs to be performed. Please match the operation objects and corresponding operation contents in the following preparation stage.
Answer:
Explanation:
NEW QUESTION # 94
As shown in the figure, the network administrator deployed the DHCP Snooping trust function on the switch, where GE0/0/2 is the trusted interface and GE/0/3 is the untrusted interface.
Which of the following descriptions of these two interfaces are correct? (Multiple choice)
Answer: A,C,D
NEW QUESTION # 95
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