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Huawei H12-831_V1.0-ENU (HCIP-Datacom-Advanced Routing & Switching Technology V1.0) Exam is an advanced level certification exam offered by Huawei for IT professionals who specialize in data communication and networking. H12-831_V1.0-ENU exam is designed to test the candidate's knowledge and skills in advanced routing and switching technologies, network protocols, and network security.
Huawei H12-831_V1.0-ENU exam is designed for IT professionals who have a deep understanding of advanced routing and switching technologies. H12-831_V1.0-ENU Exam covers a wide range of topics including network architecture, network security, routing protocols, and switching technologies. H12-831_V1.0-ENU exam is designed to test the knowledge and skills of IT professionals in designing, implementing, and maintaining complex networks.
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Huawei H12-831_V1.0-ENU (HCIP-Datacom-Advanced Routing & Switching Technology V1.0) Certification Exam is a professional-level certification exam offered by Huawei Technologies Co. Ltd. HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification exam is designed for individuals who possess intermediate-level skills in the field of data communication and networking. HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification exam is intended to validate the skills and knowledge required to design, deploy, configure, troubleshoot, and maintain complex enterprise-level networks using Huawei datacom products.
NEW QUESTION # 203
In order to publish the external routes introduced by the NSSA area to other areas, the Type 7 LSA needs to be converted into a Type 5 LSA so that it can be announced in the entire OSPF network. By default, the router that performs LSA conversion is the area border router (ABR) with the largest router ID in the NSSA area.
Answer: B
NEW QUESTION # 204
On the OSPFv3 network shown in the figure, area 1 is a common area. Which of the following statements are true?
Answer: A,C
NEW QUESTION # 205
On the enterprise network shown in the figure, R3 is connected to the NMS, and all devices on the network communicate with the NMS through a VPN.
During an inspection, it is found that R3 has redundant RTs (Route Targets).
Which of the following commands can be run on R3 to delete the redundant RTs without affecting the connectivity between all devices and the NMS?
Options:
Answer: B,C
Explanation:
Comprehensive and Detailed In-Depth Explanation:
1. Understanding VPN Route Targets (RTs) in MPLS VPNs
* Route Targets (RTs) define which VPN routes should be imported and exported among PE routers.
* Import-extcommunity: Specifies which VPN routes should be accepted into a VRF.
* Export-extcommunity: Specifies which VPN routes should be advertised from a VRF.
* Correctly configuring RTs ensures proper route exchange between VPN sites.
2. Analyzing the RTs in the Diagram
R3 ' s Current Configuration:
plaintext
CopyEdit
vpn-target 3:1 export-extcommunity
vpn-target 3:2 export-extcommunity
vpn-target 1:3 export-extcommunity
vpn-target 1:3 import-extcommunity
vpn-target 3:1 import-extcommunity
vpn-target 3:2 import-extcommunity
R1 ' s Configuration:
plaintext
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vpn-target 1:3 export-extcommunity
vpn-target 3:1 import-extcommunity
R2 ' s Configuration:
plaintext
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vpn-target 2:3 export-extcommunity
vpn-target 3:2 import-extcommunity
* R3 has redundant RTs because it both exports and imports unnecessary RTs.
* We need to remove only redundant RTs without affecting NMS connectivity.
3. Evaluating Each Answer Choice
A). " undo vpn-target 3:1 import-extcommunity " (# Incorrect)
* R1 exports RT 1:3, and R3 imports it as 3:1.
* Removing 3:1 import-extcommunity would block R3 from receiving routes from R1, disrupting connectivity to NMS.
* Thus, this option is incorrect.
B). " undo vpn-target 1:3 export-extcommunity " (# Correct)
* R3 exports RT 1:3, but there is no need for R3 to advertise routes with 1:3.
* R1 already exports 1:3, and R3 only needs to import it.
* Removing vpn-target 1:3 export-extcommunity does not affect connectivity but eliminates redundancy.
* # This is a correct choice.
C). " undo vpn-target 1:3 import-extcommunity " (# Incorrect)
* R3 needs to import 1:3 to receive routes from R1 (which is required for NMS communication).
* If removed, R3 will not receive necessary routes, breaking connectivity.
* Thus, this option is incorrect.
D). " undo vpn-target 2:3 export-extcommunity " (# Correct)
* R2 exports RT 2:3, but R3 does not need to receive it.
* This RT is redundant and can be removed without affecting connectivity.
* # This is a correct choice.
4. Evaluating the Answer Choices
Option
Correct?
Reasoning
A
# Incorrect
R3 must import 3:1 from R1 to maintain connectivity.
B
# Correct
Removing export-extcommunity 1:3 eliminates redundancy without affecting connectivity.
C
# Incorrect
Removing import-extcommunity 1:3 would block R3 from receiving necessary routes.
D
# Correct
Removing export-extcommunity 2:3 eliminates redundancy without affecting connectivity.
# Correct Answer: B and D.
Final Conclusion:
* Route Targets (RTs) are used in MPLS VPNs to control route import/export policies.
* R3 has redundant RTs, and removing unnecessary exports (1:3 and 2:3) optimizes configuration.
* Correct commands to remove redundancy without affecting connectivity are:
* # undo vpn-target 1:3 export-extcommunity
* # undo vpn-target 2:3 export-extcommunity
* Thus, the correct answer is: B and D.
Reference:
HCIP-Datacom-Advanced Routing & Switching Technology V1.0 - MPLS VPN RT and Route Control Huawei Official HCIP-Datacom Study Guide - Route Targets in MPLS VPNs Huawei Documentation on BGP MPLS VPN RT Configuration
NEW QUESTION # 206
In the network shown in the figure, R1, R2, R4, and R5 run IS-IS, and the area number is
49.0001. R3 and R6 run IS-IS, and the area number is 49.0002. Within AS 65000, R1, R3, R4, and R6 all establish IBGP neighbor relationships with R2 and R5, where R2 and R5 are RRs and R1, R4, R3, and R6 are clients. IBGP neighbor relationships are all established using the Loopback0 interface. R2 and R5 also establish an IBG neighbor relationship. The IP address of the Loopback0 interface of each device is 10.0.X.X/32, and the Router ID is 10.0.XX, where X is the device number. R1 and R4 introduce the external network 192.168.0/24 into BGP through import.
For 192.168.1.0/24, match the number of valid routes in the display bgp routing-table output.
Answer:
Explanation:
NEW QUESTION # 207
Which of the following sequences can be matched by the regular expression 100.S
Answer: A,C
NEW QUESTION # 208
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