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| Section | Weight | Objectives |
|---|---|---|
| MPLS Technologies | 19% | - MPLS fundamentals and label distribution - MPLS VPN (L3VPN, L2VPN) - LDP and RSVP-TE protocols - MPLS OAM and protection |
| Advanced BGP Features | 10% | - Routing policies and filtering - BGP multi-homing and load balancing - Route reflectors and confederations - BGP route selection and attributes |
| Advanced Ethernet Technologies | 10% | - Ethernet link aggregation and reliability - QinQ and VLAN mapping - Port isolation and security features - VLAN aggregation and MUX VLAN |
| Network Cutover | 7% | - Cutover planning and risk assessment - Post-cutover validation - Pre-cutover verification - Implementation and rollback strategy |
| Advanced IGP Features | 17% | - IS-IS advanced features
|
| IPv6 Routing | 20% | - OSPFv3 and IS-IS for IPv6 - Transition mechanisms (dual-stack, tunnel, translation) - BGP4+ for IPv6 - IPv6 address planning and configuration |
| Network Troubleshooting | 10% | - Switching and link fault handling - Routing protocol fault diagnosis - Performance and service fault resolution - Structured troubleshooting methodology |
| Network O&M | 7% | - Log and alarm management - Routine maintenance procedures - Configuration management and backup - Network monitoring and performance analysis |
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NEW QUESTION # 228
On the network shown in the figure, R1 and R2 use directly connected interfaces to establish a BGP peer relationship. The debugging information shown in the figure is displayed on R2. Drag the values on the left to the corresponding descriptions on the right.
Answer:
Explanation:
Explanation:
# Debug Logs on R2:
nginx
CopyEdit
Received OPEN from 10.0.1.1...
Router ID: 10.0.1.1, AS: 100
Received OPEN from 10.0.2.2...
Router ID: 10.0.2.2, AS: 200
* The OPEN message exchanged during BGP neighbor establishment contains:
* Router ID of the peer
* AS number
* Hold time
* Capabilities
From the logs:
* R2 received R1's OPEN message with:
* Router ID = 10.0.1.1
* AS = 100
* R2 ' s own OPEN message shows:
* Router ID = 10.0.2.2
* AS = 200
This gives us the exact matching required.
Official Huawei Extract:
" In BGP, the OPEN message contains the router ID and AS number of the sender. These values are exchanged during session establishment and are visible via debugging logs or display bgp peer outputs. "
- [Huawei HCIA-Datacom Guide - BGP Peer Establishment and Debugging]
NEW QUESTION # 229
On the OSPFv3 network shown in the figure, area 1 is a stub area .
Which of the following LSAs is generated by only one router ?
Answer: B
Explanation:
Comprehensive and Detailed In-Depth Explanation:
Understanding OSPFv3 LSA Types
* OSPFv3 uses different LSA types than OSPFv2 , with some being similar in function:
* Link-LSA (Type 8): Generated by every router on a link to advertise link-local IPv6 information.
* Intra-Area-Prefix-LSA (Type 9): Advertises IPv6 prefixes within an area.
* Network-LSA (Type 2): Generated only by the Designated Router (DR) to advertise information about all routers on a multi-access network.
* Inter-Area-Prefix-LSA (Type 3): Advertises network prefixes between OSPF areas (generated by ABRs).
Route Distribution Analysis:
A). Inter-Area-Prefix-LSA (Type 3) # (Incorrect)
* Generated by an ABR to advertise prefixes between OSPF areas.
* More than one ABR can generate this LSA.
# Not always generated by only one router.
B). Link-LSA (Type 8) # (Incorrect)
* Each router generates its own Link-LSA for each link it participates in.
* This means multiple routers can generate this LSA.
# Not generated by only one router.
C). Network-LSA (Type 2) # (Correct)
* Generated ONLY by the Designated Router (DR) on a multi-access network (such as an Ethernet link).
* Other routers do not generate this LSA, only the DR does.
# Correct answer: This LSA is generated by only one router (the DR).
D). Intra-Area-Prefix-LSA (Type 9) # (Incorrect)
* Generated by any router to advertise IPv6 prefixes within an area.
* Multiple routers in an area can generate this LSA.
# Not generated by only one router.
Final Conclusion:
# C. Network-LSA (Type 2) is the correct answer because it is generated by only one router-the Designated Router (DR).
Thus, the correct answer is: C. Network-LSA .
Reference:
HCIP-Datacom-Advanced Routing & Switching Technology V1.0 - OSPFv3 LSA Types and Multi-Area Behavior Huawei Official HCIP-Datacom Study Guide - OSPFv3 Stub Areas and LSA Advertisements Huawei Documentation on OSPFv3 DR/BDR Roles and LSA Generation
NEW QUESTION # 230
Which of the following is not a new addition to IS-IS to support the processing and calculation of IPv6 routes?
Answer: A
NEW QUESTION # 231
An LDP session has been established between two devices. At this time, the administrator modifies the transmission address of one device, which will cause the LDP session to be interrupted, thereby causing service interruption.
Answer: B
NEW QUESTION # 232
On the OSPFv3 network shown in the figure, area 1 is a stub area, area 2 is a common area, and area 3 is an NSSA. Which of the following LSAs is displayed only in area 2?
Answer: C
NEW QUESTION # 233
......
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