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Huawei H12-831_V1.0-ENU exam is a valuable credential for IT professionals who want to enhance their career growth and professional credibility. HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification exam tests the knowledge and skills of IT professionals in advanced routing and switching technologies. IT professionals who wish to take H12-831_V1.0-ENU Exam must have a deep understanding of network architecture, network security, routing protocols, and switching technologies. H12-831_V1.0-ENU exam is designed to test the candidate's ability to design, implement, and maintain complex networks.

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Huawei H12-831_V1.0 (HCIP-Datacom-Advanced Routing & Switching Technology V1.0) Exam is a professional-level certification exam offered by Huawei Technologies Co. Ltd. H12-831_V1.0-ENU Exam is designed for individuals who possess advanced knowledge and skills in the field of routing and switching technologies. The HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Exam is a comprehensive exam that covers a wide range of topics related to advanced routing and switching technologies, including routing protocols, switching technologies, network security, and network management.

The H12-831_V1.0 exam is a challenging exam that requires a deep understanding of Huawei's datacom products and advanced networking concepts. It is an essential certification for IT professionals who want to demonstrate their expertise in this area and advance their careers. By passing the exam, professionals can prove their ability to design, deploy and manage complex networks using Huawei's advanced routing and switching technologies.

Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Sample Questions (Q82-Q87):

NEW QUESTION # 82
On the OSPF network shown in the figure, areas 1, 2, and 3 are common areas. The IP address of Loopback0 on R5 is 10.0.5.5/32, and OSPF is enabled on the interface using the network command.
ACL 2000 (with the matching rule shown in the figure) is configured on all routers. If the command filter
2000 import is run in area 0 (where R1, R2, and R3 reside), which of the following routers do not have the route 10.0.5.5/32 in their routing tables?

A. R2
B. R4
C. R1
D. R3

Answer: A,C,D

Explanation:
Comprehensive and Detailed In-Depth Explanation:
Understanding the OSPF Network Structure in the Question:
* OSPF Areas & Routers:
* Area 3: Contains R5 (which has loopback 10.0.5.5/32).
* Area 1: Contains R6.
* Area 2: Contains R4.
* Area 0 (Backbone Area): Contains R1, R2, and R3 (which interconnect the other areas).
* ACL 2000 Filtering Rule:
* The ACL rule 2000 explicitly denies 10.0.5.5/32 from being imported.
* The filter 2000 import command applies this filter to Area 0, preventing routes from Area 3 (including R5's loopback) from being learned by Area 0 routers (R1, R2, and R3).
Route Distribution Analysis:
* R5 (Area 3):
* R5 has 10.0.5.5/32 configured on its Loopback0.
* Since OSPF is enabled, R5 advertises the route to R6 in Area 1.
* R6 (Area 1) # R2 (Area 0, Backbone Router):
* Without filtering, R6 would normally propagate 10.0.5.5/32 to R2 (since R2 is a backbone router in Area 0).
* However, since ACL 2000 is applied in Area 0, R2 blocks this route from being imported.
* Therefore, R2 does not learn 10.0.5.5/32.
* R2 # R1 and R3 (Both in Area 0):
* R2 would typically share any learned routes with R1 and R3 in Area 0.
* But since R2 itself does not have 10.0.5.5/32, neither R1 nor R3 can receive it.
* Thus, R1 and R3 also do not have 10.0.5.5/32 in their routing tables.
* R4 (Area 2) is Unaffected:
* Since R4 is in Area 2, it is not directly impacted by the filter applied in Area 0.
* It can still receive the route via another path if redistribution is configured properly.
Final Conclusion:
* R1, R2, and R3 do not have the 10.0.5.5/32 route due to the filter 2000 import command applied in Area 0.
* R4 may still have the route since it is not affected by the filtering in Area 0.
Thus, the correct answer is:# R1, R3, R2 do not have the route 10.0.5.5/32 in their routing tables.

NEW QUESTION # 83
Which of the following descriptions is correct about configuring static LSP in MPLS network? (Multiple choice)

A. When a certain LSR is a Transit LSR, In Labe1 and 0ut Label need to be configured at the same time, the range is 16~1023
B. When a certain LSR is an Egress LSR, only In Labe1 needs to be configured, the range is 16~1023
C. When a certain LSR is a Transit LSR, In Labe1 and Out labe1 need to be configured at the same time, the range of In Labe1 is 16~1023, and the range of Out Labe1 is 16~1048575
D. When an LSR is an Ingress LSR, only Out Label needs to be configured, ranging from 16 to 1048575

Answer: B,C,D

NEW QUESTION # 84
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.
An iBGP peer relationship is established between R2 and R5, and the same cluster ID is configured. The iBGP peer relationships are established using Loopback0. The IP address of Loopback0 on each router is 10.0.X.X/32, where X is the router number.
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?

A. The BGP routing table of R2 contains three valid routes to 192.168.1.0/24.
B. The BGP routing table of R3 contains one valid route to 192.168.2.0/24.
C. The BGP routing table of R4 contains three valid routes to 192.168.2.0/24.
D. The BGP routing table of R5 contains two valid routes to 192.168.1.0/24.

Answer: A,C,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): R1, R2, R4, R5.
* Area 49.0002 (Level-2 IS-IS): 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:
Route to 192.168.1.0/24 (Imported by R1 & R4):
* R1 and R4 advertise 192.168.1.0/24 into iBGP.
* Since R2 and R5 are Route Reflectors (RRs), they will reflect these routes to all their iBGP clients (R1, R3, R4, R6).
* R2 learns two valid routes to 192.168.1.0/24 (from R1 and R4).
* R5, as another RR, learns both routes and advertises them as well.
* R2 ultimately has three valid paths (direct from R1 and R4, plus a reflected route from R5).# Statement C is correct: The BGP routing table of R2 contains three valid routes to 192.168.1.0/24.
* R5 also learns 192.168.1.0/24 from both R1 and R4.# Statement B is correct: The BGP routing table of R5 contains two valid routes to 192.168.1.0/24 (from R1 and R4).
Route to 192.168.2.0/24 (Imported by R3 & R6):
* 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 three valid paths (directly from R3 and R6 via BGP, and one additional reflected path via R5).# Statement D is correct: The BGP routing table of R4 contains three valid routes to
192.168.2.0/24.
Checking Statement A:
* R3 originally imports 192.168.2.0/24 and advertises it.
* Since it is a Route Reflector Client of R5 and R2, it should have multiple routes via iBGP, not just one.# Statement A is incorrect because R3 should have multiple valid routes, not just one.
Final Conclusion:
# B. The BGP routing table of R5 contains two valid routes to 192.168.1.0/24.# C. The BGP routing table of R2 contains three valid routes to 192.168.1.0/24.# D. The BGP routing table of R4 contains three valid routes to 192.168.2.0/24.# A. The BGP routing table of R3 does NOT contain only one valid route to 192.168.2.0/24 (it has multiple routes).
Thus, the correct answers are: B, C, D.

NEW QUESTION # 85
On an enterprise network shown in the figure, EBGP is deployed between CEs and PEs.
CE1 sends a VPN route to PE1.

Which of the following statements are false?
Options:

A. If no additional action is taken, CE3 discards the route.
B. If the command peer 10.1.3.1 substitute-as is run on PE2, CE3 accepts the route.
C. To enable CE3 to receive the route, run the command peer 10.1.1.1 soo 200:1 on PE1.
D. If the commands peer 10.1.1.1 soo 200:1 and peer 10.1.2.1 soo 200:1 are run on PE1, CE2 accepts the route.

Answer: C,D

Explanation:
Comprehensive and Detailed In-Depth Explanation:
1. Understanding Site of Origin (SoO) in MPLS VPNs
* SoO (Site of Origin) is used in MPLS VPNs to prevent loops in multi-homed CE scenarios.
* Routes with the same SoO value are not advertised back to the same site.
2. Analysis of Each Answer Choice
A: "To enable CE3 to receive the route, run the command peer 10.1.1.1 soo 200:1 on PE1." (# False)
* SoO is used to prevent loops by tagging routes that belong to the same site.
* Applying SoO (200:1) on PE1 for CE1 means that any other PE (such as PE2) receiving the route will not advertise it back to the same site (CE1).
* This statement is false because applying SoO here does not directly enable CE3 to receive the route. Instead, CE3 must accept routes with SoO values properly configured.
B: "If the commands peer 10.1.1.1 soo 200:1 and peer 10.1.2.1 soo 200:1 are run on PE1, CE2 accepts the route." (# False)
* SoO ensures that a route received from one CE is not sent back to another CE in the same site.
* If SoO (200:1) is assigned to CE1 and CE2, routes will be blocked because they share the same SoO tag.
* Thus, CE2 will not accept the route, making this statement false.
C: "If the command peer 10.1.3.1 substitute-as is run on PE2, CE3 accepts the route." (# True)
* substitute-as allows a router to replace the received AS number in the AS_PATH with another AS number, ensuring that routes are accepted even when AS_PATH filtering is in place.
* This prevents CE3 from rejecting the route due to AS-Path loop prevention.
* # Thus, this statement is true.
D: "If no additional action is taken, CE3 discards the route." (# True)
* By default, CE3 will discard the route because of BGP loop prevention (same AS in the AS_PATH).
* To allow CE3 to receive the route, the allowas-in or substitute-as command must be configured on PE2.
* # Thus, this statement is true.
3. Evaluating the Answer Choices
Option
Correct?
Reasoning
A
# False
Applying SoO does not directly enable CE3 to receive the route.
B
# False
If both CE1 and CE2 have the same SoO value, CE2 will reject the route.
C
# True
Substitute-AS allows CE3 to accept the route by modifying the AS-Path.
D
# True
Without additional configuration, CE3 will discard the route due to AS-Path loop prevention.
# Correct answer: A and B are false.
Final Conclusion:
* SoO prevents routing loops in MPLS VPN multi-homing.
* CE2 will reject the route if it has the same SoO as CE1.
* CE3 requires the substitute-as or allowas-in command to accept the route.
* Thus, statements A and B are false.

NEW QUESTION # 86
Regarding BGP/MPLS IPVPN data forwarding, which of the following descriptions is wrong?

A. The inner label when data is forwarded is defined byMP-BGPdistribute
B. The outer layer label when data is forwarded can beLDPdistribute
C. data inB, CP/MPLS IP VPNWhen the backbone network is transmitted, it always carries two layers of labels
D. PEsend toCEThe data isIPv4Genuine

Answer: C

NEW QUESTION # 87
......

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