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| Section | Weight | Objectives |
|---|---|---|
| MPLS Technologies | 19% | - MPLS VPN and traffic engineering - MPLS basics and label distribution - MPLS protection and fast reroute |
| Advanced Ethernet Technologies | 10% | - VLAN stacking and QinQ - Ethernet OAM and protection mechanisms - Advanced link aggregation and reliability |
| Network Troubleshooting | 10% | - Troubleshooting routing and switching issues - Fault diagnosis and analysis methods |
| Network O&M | 7% | - Performance optimization and capacity planning - Network monitoring and management tools |
| Network Cutover and Migration | 7% | - Migration strategies and risk control - Service switchover and verification |
| Advanced IGP Features | 17% | - OSPF advanced features and optimization - IGP route selection and control - IS-IS advanced features and convergence |
| IPv6 Routing | 20% | - BGP4+ and IPv6 route deployment - IPv6 addressing and transition technologies - OSPFv3 and IS-IS for IPv6 |
| Advanced BGP Features | 10% | - Route reflectors and confederations - BGP route attributes and policies - BGP path control and filtering |
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NEW QUESTION # 133
VLAN aggregation is deployed in a switching network, where Sub-VLAN 2 and Sub- VLAN 3 are added to Super-VLAN 10. If hosts in different Sub-VLANs want to communicate with each other, the command () inter-sub-vlan-proxy enable should be entered in the VANIF 10 interface view corresponding to Super-LAN.
Answer:
Explanation:
arp-proxy
NEW QUESTION # 134
Huawei NetEngine AR6120 and AR6121 each have two slots for accommodating service interface cards, and the two slots can be combined into one.
Answer: A
Explanation:
Huawei NetEngine AR6120 and AR6121 routers provide modular hardware expansion through service interface card slots.
Both models support two Service Interface Card (SIC) slots. These slots accommodate compatible interface modules that extend the router ' s connectivity and service capabilities.
An important hardware design feature is that two adjacent SIC slots can be combined into one Wide Service Interface Card (WSIC) slot.
This is achieved by removing the guide rail separating the SIC slots, permitting installation of a compatible larger interface card.
The combined slot uses the designated slot identifier specified in the hardware documentation.
This modular arrangement provides flexibility when selecting interface modules for enterprise WAN connectivity and network expansion.
Huawei ' s hardware specifications confirm that the two SIC slots can be combined into one WSIC slot.
Therefore, the statement is TRUE.
NEW QUESTION # 135
Which of the following descriptions is wrong?
Answer: D
NEW QUESTION # 136
In the OSPF network shown in the figure, the area numbers are marked in the figure. Area 1 is a stub area, area 2 is a totally stub area, and area 3 is an NSSA area. Which of the following types of LSAs will not appear in areas 1, 2, and 3?
Answer: D
NEW QUESTION # 137
The figure shows the logical network architecture of a migration project . The purpose of the migration is to enable terminals in different geographical locations to communicate with each other and deploy the gateway of the terminals on the PE routers .
After the migration is complete, which of the following methods can be used by network engineers to preliminarily check the network connectivity?
Options:
Answer: B,C,D
Explanation:
Comprehensive and Detailed In-Depth Explanation:
1. Understanding the Network Setup
* PE1 (Provider Edge 1) is the gateway for network 192.168.1.1/24.
* PE2 (Provider Edge 2) is the gateway for network 192.168.2.1/24.
* A cloud-based backbone connects PE1 and PE2.
* To verify end-to-end communication, engineers need to check reachability between PE1 and PE2.
2. Evaluating Each Answer Option
* Option A: " Configuring NQA on PE1 and PE2, with the destination address being the IP address of each other. "
* # Correct.
* NQA (Network Quality Analysis) is a network testing tool that allows connectivity testing between two devices.
* Configuring NQA between PE1 and PE2 will verify end-to-end reachability.
* Option B: " On PE1 and PE2, checking whether the ARP table contains the ARP entry of the peer network segment. "
* # Incorrect.
* ARP (Address Resolution Protocol) is only used for resolving MAC addresses within the same broadcast domain.
* Since PE1 and PE2 are in different network segments (separated by a routed network), they will not have ARP entries for each other.
* Instead, routing entries should be checked, not ARP.
* Option C: " On PE1, using 192.168.1.1 as the source address to ping 192.168.2.1. "
* # Correct.
* A simple ping test using the source address of PE1 (192.168.1.1) to reach PE2 (192.168.2.1) will verify whether routing between the two locations is functional.
* Option D: " On PE1 and PE2, checking whether there are routes to each other's network segment in the routing tables. "
* # Correct.
* If routing is not configured correctly, PE1 and PE2 will not know how to reach each other.
* Checking the routing table ensures that both PEs have the correct next-hop information.
Final answer:
# A, C, and D are correct.
HCIP-Datacom-Advanced Routing & Switching Technology References:
* Using NQA for Network Connectivity Testing
* Verifying Routing Table Entries for Inter-Network Communication
* Understanding ARP and Its Limitations in Routed Networks
NEW QUESTION # 138
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