PROFESSIONAL NEW H12-831_V1.0-ENU EXAM SIMULATOR - HOW TO DOWNLOAD FOR TEST H12-831_V1.0-ENU ASSESSMENT FREE

Professional New H12-831_V1.0-ENU Exam Simulator - How to Download for Test H12-831_V1.0-ENU Assessment free

Professional New H12-831_V1.0-ENU Exam Simulator - How to Download for Test H12-831_V1.0-ENU Assessment free

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The Huawei H12-831_V1.0-ENU certification exam is not only validate your skills but also prove your expertise. It can prove to your boss that he did not hire you in vain. The current IT industry needs a reliable source of Huawei H12-831_V1.0-ENU Certification Exam, ITPassLeader is a good choice. Select ITPassLeader H12-831_V1.0-ENU exam material, so that you do not need yo waste your money and effort. And it will also allow you to have a better future.

Huawei H12-831_V1.0-ENU Certification is highly valued in the IT industry, as it demonstrates the candidate's ability to work with complex networks and advanced technologies. HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification is recognized globally and can help professionals advance their careers in the IT industry. Candidates who pass the exam will be awarded the HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification, which is valid for three years.

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Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Sample Questions (Q155-Q160):

NEW QUESTION # 155
OSPFv2 is an IGP running on an IPv4 network; OSPFv3 is an IGP running on an IPv6 network. The basic working mechanism of OSPFv3 is the same as OSPFv2, such as the election of DR and BDR. As shown in the figure, an engineer uses three routers to test IPv6 services. He wants to realize the interconnection and interoperability of IPv6 networks by running OSPFv3.

Which of the following statements regarding the election of DR on this network is correct?

  • A. After the network converges, the engineer changes the priority of R1 to 100, the priority of R2 to 10, and the default value of R3. When the network converges again, R1 is DR and R2 is BDR
  • B. After the network converges, R1 is the DR
  • C. After the network converges, a new device R4 is added to the broadcast link, and the priority of R4 is 150. When the network converges again, R4 is the DR
  • D. After the network converges, R1 is powered off and restarted. When the network converges again, R3 is the DR

Answer: D


NEW QUESTION # 156
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::/128. The IPv6 summary 2000::/64 level-1-2 command is configured in the IS-IS processes of R2 and R1. Which of the following statements is false?

  • A. The routing table of R3 contains the route 2000::/128.
  • B. The routing table of R2 contains the route 2000::/64.
  • C. The routing table of R1 contains the route 2000::/64.
  • D. The routing table of R2 contains the route 2000::/128.

Answer: A

Explanation:
Comprehensive and Detailed In-Depth Explanation:To determine which statement is false, we need to analyze the IS-IS topology, the role of multi-topology, the IPv6 summary configuration, and the level-1-2 behavior of IS-IS routers. Let's break it down step by step:
* Understanding the IS-IS Topology and Levels:
* IS-IS supports multiple levels: Level-1 (L1) for intra-area routing, Level-2 (L2) for inter-area routing, and Level-1-2 (L1-2) routers that can operate in both levels and connect L1 and L2 areas.
* In the figure, R1 and R2 are configured as Level-1-2 routers, R3 is a Level-1-2 router, R4 is a Level-1 router, and R5 is a Level-1 router. The area borders are indicated by the system IDs (49.0001 for R4's area and 49.0002 for R3 and R5's area).
* R4's Loopback0 has the IPv6 address 2000::/128, which is a host route (a /128 prefix, representing a single address).
* Multi-Topology IS-IS for IPv6:
* Multi-topology IS-IS allows separate topologies for IPv4 and IPv6, ensuring that IPv6 routes are handled independently. Since multi-topology is enabled on all routers, IPv6 routes (like 2000::
/128 on R4) are advertised and processed within the IPv6 topology.
* This means that IPv6 routes, including the Loopback0 address of R4 (2000::/128), can be advertised across the IS-IS domain, subject to the level and summary configurations.
* IPv6 Summary Configuration (2000::/64 level-1-2):
* The command ipv6 summary 2000::/64 level-1-2 is configured in the IS-IS processes of R1 and R2. This command instructs R1 and R2 (as Level-1-2 routers) to summarize the IPv6 prefix
2000::/64 and advertise it to both Level-1 and Level-2 areas.
* Summarization means that instead of advertising the more specific route (e.g., 2000::/128 from R4), R1 and R2 advertise the less specific summary route 2000::/64. This summary route covers the 2000::/128 address of R4's Loopback0.
* Since R1 and R2 are Level-1-2 routers, they can advertise this summary to both their Level-1 neighbors (like R4 and R3) and Level-2 neighbors (across areas).
* Analyzing Each Statement:
* A. The routing table of R1 contains the route 2000::/64.
* True. R1 is a Level-1-2 router with the ipv6 summary 2000::/64 level-1-2 command configured. It advertises and installs the summary route 2000::/64 in its routing table, covering the more specific 2000::/128 from R4. Additionally, as a Level-1-2 router, R1 can learn and retain this route from its IS-IS neighbors.
* B. The routing table of R2 contains the route 2000::/64.
* True. Similar to R1, R2 is also a Level-1-2 router with the same summary command. It advertises and installs the 2000::/64 summary route in its routing table, covering R4's
2000::/128.
* C. The routing table of R3 contains the route 2000::/128.
* False. R3 is a Level-1-2 router in area 49.0002, but it receives routes from R2 (a Level-1-2 router in area 49.0001). Because R1 and R2 are configured with the ipv6 summary 2000::
/64 level-1-2 command, they advertise the summary route 2000::/64 to their neighbors, including R3. IS-IS prefers the most specific route, but the summary configuration ensures that the more specific 2000::/128 from R4 is not advertised beyond R1 and R2 unless explicitly allowed. Since R3 is in a different area and receives the summary 2000::/64 from R2, it does not have the more specific 2000::/128 route in its routing table. Therefore, this statement is false.
* D. The routing table of R2 contains the route 2000::/128.
* True. R2, as a Level-1-2 router, is directly connected to R4 (a Level-1 router) via the IS-IS topology. R4 advertises its Loopback0 address 2000::/128 to R2. Even though R2 is configured to summarize 2000::/64, it can still retain the more specific 2000::/128 route in its routing table because IS-IS allows routers to keep both summary and more specific routes, with the more specific route taking precedence for routing decisions.
* Conclusion:
* The false statement is C, as R3 does not contain the route 2000::/128 in its routing table. Instead, R3 receives the summary route 2000::/64 from R2 due to the summary configuration on R1 and R2.
References to HCIP-Datacom-Advanced Routing & Switching Technology Documents:
* HCIP-Datacom-Advanced Routing & Switching Technology V1.0, Section on IS-IS: Multi-Topology IS-IS for IPv6, Level-1 and Level-2 Operations, and Route Summarization.
* HCIP-Datacom-Advanced Routing & Switching Technology V1.0, Chapter on IPv6 Routing Protocols:
IS-IS Configuration and Behavior, Including Summary Address Commands and L1/L2 Interactions.


NEW QUESTION # 157
The partial configuration of R1 is as follows. Which statement about OSPF on R1 is correct?
ospf 1 router-id 172.16.1 J
area 0.0.0.0
network 10.1.12.1 0.0.0.0
network 10.1.13.1 OQO.O
network 172 J 6.1.1 0.0.0.0

  • A. R1The device type isLevel-2
  • B. R1The device type could not be determined
  • C. R1The device type isLevel-1 -2
  • D. R1The device type isLevel-1

Answer: C


NEW QUESTION # 158
When there are multiple redundant links in the IS-S network, multiple equal-cost routes may appear.
Regarding equal-cost routes in an IS-IS network, which of the following descriptions is wrong?

  • A. When the number of equal-cost routes in the networking is greater than the number configured through commands, and the priorities of these routes are the same, the route with the higher System ID of the next hop device is preferred for load sharing
  • B. After the equal-cost routing priority is configured, when the IS-IS device forwards the traffic that reaches the destination network segment, it will not adopt the load sharing method, but will forward the traffic to the next-hop with the highest priority.
  • C. For each route in the equal-cost route, the priority can be specified, and the route with the higher priority will be preferred. The rest are used as backup routes
  • D. If negative arbitration sharing is configured, the traffic will be evenly distributed to each link

Answer: B


NEW QUESTION # 159
According to this picture, cooked I'] can be judged?

  • A. R1ofGEO/O/Ointerface is enabledIS-IS IPv6
  • B. R1ofGE0/0/1interfaceIS-ISThe interface type isLeve-1
  • C. R1ofGE0/0/1Interface is not enabledIS-IS IPv6
  • D. R1ofGEO/O/OinterfaceIS-ISThe interface type isLevel-1-2

Answer: A,D


NEW QUESTION # 160
......

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