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Huawei H12-831_V1.0 Certification Exam covers a wide range of topics related to advanced routing and switching technology. It includes a thorough understanding of network architecture, routing protocols, MPLS VPN, BGP, multicast, and QoS. In addition, candidates will also be tested on their ability to configure, troubleshoot, and maintain complex network infrastructures using Huawei devices.
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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 Exam is designed to test the candidate's knowledge and skills in advanced routing and switching technologies, network protocols, and network security.
NEW QUESTION # 97
On the OSPFv3 network shown in the figure:
* OSPFv3 is enabled on the interfaces connecting R1, R2, and R3.
* The router ID of each router is 10.0.X.X, where X is the number of the router.
* When checking detailed information about an LSA on R3, the command output shows that the LSA is generated by R2 and describes the IPv6 prefix address associated with the Network-LSA.
Based on this information, which of the following statements is correct?
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
To verify the correct answer, let's analyze the LSA types in OSPFv3 and how they work in the given topology.
1. Understanding OSPFv3 LSAs in the Figure
From the command output shown in the image:
* LS Type: Intra-Area-Prefix-LSA (Type 9 in OSPFv3).
* Originating Router: 10.0.2.2 (R2).
* Referenced LS Type: 0x2002, which corresponds to a Network-LSA (Type 2).
* Prefix Advertised: 2000:23::/64, which is an IPv6 prefix associated with a network segment.
2. What is an Intra-Area-Prefix LSA (Type 9) in OSPFv3?
* In OSPFv3, Type 9 LSAs (Intra-Area-Prefix LSAs) describe IPv6 prefixes associated with either Router-LSAs (Type 1) or Network-LSAs (Type 2).
* In multi-access networks (e.g., Ethernet), the DR (Designated Router) generates a Network-LSA (Type 2), which represents the shared network segment.
* R2 is likely the DR in this topology, meaning it generates a Network-LSA (Type 2) and an associated Intra-Area-Prefix LSA (Type 9) for the subnet.
3. Analyzing Why the Statement is TRUE
* R2 (10.0.2.2) is the originator of the Intra-Area-Prefix LSA (Type 9).
* The LSA references a Network-LSA (Type 2), confirming that R2 is the DR for the subnet.
* This means the LSA is correctly describing the IPv6 prefix associated with the network.
* Since the LSA is visible in R3's LSDB, R3 is learning this information from R2.
* All these points confirm that the statement is TRUE.
NEW QUESTION # 98
When an IP packet passes through an MPLS network, an MPLS device processes the TTL value in the packet.
If the pipe mode is used in the topology shown in the figure, which of the following is the TTL value in the IP packet?
Answer: C
NEW QUESTION # 99
On the IS-IS IPv6 network shown in the figure:
* Multi-topology is enabled on all routers.
* The IPv6 address of Loopback0 on R4 is 2000::4/128.
* The command ipv6 summary 2000::/64 level-2 is configured in the IS-IS processes of R2 and R1 .
* The command ipv6 import-route isis level-2 into level-1 is configured in the IS-IS processes of R1, R2, and R3 .
Which of the following routers have the route 2000::/64 in their routing tables?
Answer: A,C
Explanation:
Comprehensive and Detailed In-Depth Explanation:
Understanding the IS-IS Network and IPv6 Route Summary Behavior
* IS-IS Areas and Router Roles:
* Area 49.0001 (Level-1-2): R1, R2, R4
* Area 49.0002 (Level-1-2 & Level-1): R3 (Level-1-2), R5 (Level-1 only)
* Effect of ipv6 summary 2000::/64 level-2 Command
* This command on R1 and R2 summarizes the 2000::/64 prefix for Level-2 routers.
* Instead of advertising the detailed 2000::4/128 prefix, R1 and R2 advertise only the summarized 2000::/64 route to other Level-2 routers.
* Effect of ipv6 import-route isis level-2 into level-1 Command
* This command allows Level-1 routers (like R3) to learn Level-2 routes (like 2000::/64).
* R1 and R2 redistribute the 2000::/64 summary route into Level-1 IS-IS areas, making it available to Level-1 routers.
Route Distribution Analysis for Each Router
R4 (Does Not Have 2000::/64) #
* R4 only advertises its Loopback0 (2000::4/128).
* It does not need to install the summarized 2000::/64 route, as it originates from its own loopback.
# R4 does NOT have the 2000::/64 route.
R5 (Does Not Have 2000::/64) #
* R5 is a Level-1-only router in Area 49.0002.
* It does not have a Level-2 connection to learn the summarized 2000::/64 route.
* Because R5 is Level-1 only, it can only receive routes if a default route is provided, which is not mentioned in the question.
# R5 does NOT have the 2000::/64 route.
R3 (Has 2000::/64) #
* R3 is a Level-1-2 router, meaning it can learn both Level-1 and Level-2 routes.
* Since R1 and R2 advertise the summarized 2000::/64 route into Level-2 and R3 has ipv6 import- route isis level-2 into level-1, R3 will install 2000::/64 in its routing table.
# R3 has the 2000::/64 route.
R2 (Has 2000::/64) #
* R2 is a Level-1-2 router and has the ipv6 summary 2000::/64 level-2 command enabled.
* This means R2 advertises the summarized 2000::/64 route to other Level-2 routers and installs it in its own routing table.
# R2 has the 2000::/64 route.
Final Conclusion:
# R3 has the route 2000::/64.
# R2 has the route 2000::/64.
# R4 does NOT have the route 2000::/64.
# R5 does NOT have the route 2000::/64.
Thus, the correct answers are: C. R3, D. R2 .
Reference:
HCIP-Datacom-Advanced Routing & Switching Technology V1.0 - IS-IS Route Summarization and IPv6 Multi-Topology Huawei Official HCIP-Datacom Study Guide - IS-IS L1/L2 Routing and IPv6 Summarization Commands Huawei Documentation on IPv6 Route Summary Behavior in IS-IS
NEW QUESTION # 100
When the network changes, the DHCP Snooping binding table will not age immediately, so it needs to be cleared manually. Which of the following commands can the administrator use to clear the DHSP Snooping binding?
Answer: D
NEW QUESTION # 101
A router's Network LSA is shown in the figure. Which of the following statements is correct?
<Huawei>display ospf Isdb network self-originate OSPFProcess1 with Router ID 10.0.12.2 Area: 0.0.0.0 Type: Network Lsid: 10.0.122 Advrtr: 10.0.12.2 Ls age: 824 Len: 32 Options : E
\seq#:80000002
1 chksum : 0x8970
I Net mask: 255.255.255.0
IPriority : Low
I Attached Router 10.0.12.2
. Attached Router 10.0.12.1
Answer: A,B,C
NEW QUESTION # 102
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