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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: MPLS Technologies | 19% | - MPLS fundamentals and label distribution - MPLS OAM and protection - LDP and RSVP-TE protocols - MPLS VPN (L3VPN, L2VPN) |
| Topic 2: Advanced Ethernet Technologies | 10% | - Ethernet link aggregation and reliability - Port isolation and security features - QinQ and VLAN mapping - VLAN aggregation and MUX VLAN |
| Topic 3: Network Troubleshooting | 10% | - Switching and link fault handling - Performance and service fault resolution - Structured troubleshooting methodology - Routing protocol fault diagnosis |
| Topic 4: IPv6 Routing | 20% | - IPv6 address planning and configuration - OSPFv3 and IS-IS for IPv6 - BGP4+ for IPv6 - Transition mechanisms (dual-stack, tunnel, translation) |
| Topic 5: Advanced IGP Features | 17% | - IS-IS advanced features
|
| Topic 6: Network Cutover | 7% | - Cutover planning and risk assessment - Pre-cutover verification - Implementation and rollback strategy - Post-cutover validation |
| Topic 7: Advanced BGP Features | 10% | - Routing policies and filtering - Route reflectors and confederations - BGP multi-homing and load balancing - BGP route selection and attributes |
| Topic 8: Network O&M | 7% | - Configuration management and backup - Log and alarm management - Network monitoring and performance analysis - Routine maintenance procedures |
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NEW QUESTION # 199
A network engineer draws a schematic diagram of a multicast network (shown in the figure) during troubleshooting. R1 and R2 run IGMP version 2 and use PIM-SM as the multicast routing protocol. The default settings are used for other parameters. Given this, the querier on the multicast network is_____. (Enter the device ID, for example, R1.)
Answer:
Explanation:
R1
Explanation:
IGMPv2 performs an independent querier election on a shared network segment. When multiple multicast routers initially consider themselves queriers, they exchange IGMP General Query messages and compare the source IP addresses of those messages. The multicast router with the lowest interface IP address becomes the IGMP querier.
The relevant addresses are:
* R1: 10.0.12.1/24
* R2: 10.0.12.2/24
Because 10.0.12.1 is numerically lower than 10.0.12.2, R1 is elected as the IGMP querier. R2 becomes a non- querier and stops periodically transmitting General Query messages while it continues receiving valid queries from R1.
PIM-SM does not change this result. PIM designated-router election and IGMP querier election are separate processes and may select different routers. The question specifically asks for the IGMP querier; therefore, the IGMPv2 lowest-IP rule applies. Huawei IGMPv2 working mechanism.
NEW QUESTION # 200
On an MPLS network, an LSR ID uniquely identifies an LSR. An LSR ID defaults to the IP address of a physical interface on a device and can be manually set to a loopback interface address.
Options:
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
* LSR ID (Label Switch Router ID) uniquely identifies an MPLS router in the network.
* By default, the LSR ID is the IP address of a physical interface on the router.
* Best Practice: Manually configuring the LSR ID to use a loopback interface address improves stability and reachability in MPLS networks.
* The loopback interface is always up, ensuring that the LSR ID remains accessible even if physical interfaces go down.
# Reference: HCIP-Datacom Advanced Routing & Switching Technology - MPLS LSR ID Configuration
NEW QUESTION # 201
As shown in the figure, Client1 and Client2 act as clients of RR1 and RR2 at the same time, and RR1 and RR2 are in the same In a Cluster, R introduces 10 routes. It is assumed that the configuration of B, CP is correct. Neighbor relations have been established Now, how many routing entries exist in the BGP routing table of Client2?
Answer: A
NEW QUESTION # 202
As shown in the figure, MPLS/BGP IPVPN is deployed on the network. The MP-BGP neighbor relationship is established between PE1 and PE2 through the LoopbackD interface. After the configuration is complete, it is found that CE1 and CE2 cannot learn routes from each other. Run the command to check the error on PE2. The neighbor information is shown in the figure, what is the most likely cause of the problem?
Answer: A
NEW QUESTION # 203
In the hub-spoke networking shown in the figure, the Hub-PE can be configured to allow repetitive local AS numbers for correct route transmission.
Answer: A
NEW QUESTION # 204
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