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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network Troubleshooting | 10% | - Structured troubleshooting processes - Troubleshooting methods |
| Topic 2: Advanced IGP Features | 17% | - Route control - Fast convergence - IS-IS advanced features - OSPF advanced features |
| Topic 3: Network Cutover | 7% | - Migration process - Basic cutover concepts |
| Topic 4: Network O&M | 7% | - Data collection - Routine maintenance |
| Topic 5: MPLS Technologies | 19% | - MPLS configuration - MPLS forwarding - MPLS principles - MPLS VPN applications |
| Topic 6: IPv6 Routing | 20% | - BGP4+ - OSPFv3 - IPv6 static routes - IS-IS for IPv6 |
| Topic 7: Advanced BGP Features | 10% | - BGP route control - Inter-domain routing optimization - Advanced BGP features - Route reflectors |
| Topic 8: Advanced Ethernet Technologies | 10% | - VLANs - Ethernet security |
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NEW QUESTION # 104
Which of the following commands must be configured when an administrator enables MPLS LDP on GE0/0
/1 of a device?
Answer: A,B,C,D
Explanation:
Huawei VRP requires MPLS and the Label Distribution Protocol (LDP) to be enabled at both the global and interface levels before dynamic label-switched paths can be established over an interface.
First, the mpls command enables the global MPLS function. Next, mpls ldp enables the global LDP process.
These commands establish the necessary control-plane functionality.
At the interface level, mpls enables MPLS processing on GE0/0/1, and mpls ldp enables LDP neighbor discovery and label distribution through that interface.
All four commands are necessary in the configuration sequence shown in Huawei ' s training material. In a complete deployment, the administrator must also configure an appropriate MPLS LSR ID and ensure IP connectivity between neighboring devices.
Therefore, all four options are correct.
HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Training Material.pdf
NEW QUESTION # 105
The figure shows information about an LSP (Link-State PDU) generated by an IS-IS router.
From the LSP, you can infer that the router is not the DIS (Designated Intermediate System) of the local link.
Options:
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
1. Understanding the DIS (Designated Intermediate System) in IS-IS
* In IS-IS, the DIS (Designated Intermediate System) is similar to the DR (Designated Router) in OSPF.
* Unlike OSPF, IS-IS does not use an election based on priority; instead, the router with the highest priority becomes the DIS.
* If there is a tie in priority, the router with the highest MAC address on the interface becomes the DIS.
* The DIS is responsible for generating additional LSPs (pseudonode LSPs) for the link and synchronizing the database between routers.
2. How to Identify If the Router Is the DIS from the LSP
* In the given LSP output, there are NO pseudonode LSPs (LSPs ending with .01).
* The DIS is responsible for creating pseudonode LSPs, which represent a multi-access network in the IS- IS topology.
* If the router were the DIS, it would generate both its own LSP (ending in .00) and a pseudonode LSP (ending in .01).
* Since we only see an LSP ending in .00, this confirms that the router is NOT the DIS.
3. Evaluating the Answer Choices
* Option A (TRUE) - Correct:
* Since no pseudonode LSP is present, the router is not the DIS.
* This confirms that the statement is TRUE.
* Option B (FALSE) - Incorrect:
* If the router were the DIS, it would generate pseudonode LSPs, but they are missing from the output.
* Therefore, the statement is NOT false.
Final answer:
HCIP-Datacom-Advanced Routing & Switching Technology References:
* IS-IS Designated Intermediate System (DIS) Selection Process
* Pseudonode LSP Generation in Multi-Access Networks
* IS-IS LSP Structure and Identification of DIS
NEW QUESTION # 106
On the IS-IS IPv6 network shown in the figure, each interface of R1 and R2 has two IPv6 addresses. Because the IPv6 address prefixes of R1 and R2 are different, they cannot be used to establish a neighbor relationship.
Answer: A
Explanation:
# Key Concept:
IS-IS is a Layer 2 routing protocol and does not rely on IP addressing to establish neighbor relationships.
Unlike OSPF, IS-IS runs directly over the data link layer (CLNS - ISO 8473) and uses MAC-level communication for neighbor discovery.
# IPv6 Addresses in the Scenario:
* R1 Interface:
* 2000:12::1/64
* 2000:21::1/64
* R2 Interface:
* 2000:12::2/127
* 2000:21::2/127
Even if IP prefixes on the interfaces are mismatched, IS-IS adjacency can still be formed, because:
* IS-IS does not use IP address matching for adjacency formation.
* What matters is that the interfaces are on the same Layer 2 segment and IS-IS is enabled on both sides.
# Final Answer: B. FALSE
Official Huawei Extract:
" IS-IS operates at Layer 2 and establishes neighbor relationships regardless of IP address configuration. As long as IS-IS is enabled and interfaces are connected at Layer 2, a neighbor relationship can be established- even with different IP prefixes. "
- [Huawei HCIA-Datacom Certification Guide - IS-IS over IPv6 Chapter]
NEW QUESTION # 107
All routers in a network run IS-IS, and all are in Area 49.0001, where the L SDB of R1 is shown in the figure According to this, it is judged that the DIS of Level-2 is. (Please fill in the device name, such as R1)
|<R1> displayisisisdb
DatabaseinformationforISIS (1)
Level-1Link State Database
LSPIDO Seq Num ChecksumbHoldtime Length ATT/P/OL
0001.0000.4004.00-00 0x00000008 0xb701 1186 68 0/0/0
0001.0000.2002.00-00Ox 0000008 0xb701 1186680/0/0
0001.0100.1001.00-00*0x00000050x2f9d1187 680/0/0
0001.0100.1001.01-00*0x00000001 0xa79e1110550/0/0
Level-2 Link State Database
LSPIDAN> Seq Num Checksum., Holdtime Length ATT/P/OL
0001.00002002.00-00 0000000080xb7011188 6S0/0/0
0001.0100.1001.00-00* 0x00000060x2d9e 1187 680/0/0
0001.0100.1001.01-00* 0x00000005OxdObO 1191 660/0/0
0100.0000.3003.00-00 000000005 0xfe53 1185 560/0/0
Answer:
Explanation:
R
NEW QUESTION # 108
On the OSPF network shown in the figure, the cost values of links are marked, and OSPF IP FRR is enabled on R1. Which of the following statements are true?
Answer: A,C,D
NEW QUESTION # 109
......
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