H12-831_V1.0 Exam Dumps : HCIP-Datacom-Advanced Routing & Switching Technology V1.0

Huawei network devices provide several information-management mechanisms, including logs, traps, debugging information, and SNMP management data.

Log information is the appropriate starting point when investigating a configuration change made by an administrator.

Depending on the device software version and enabled logging functions, configuration-operation logs may record commands executed by administrators, including IP address modifications and deletions.

The administrator can examine available logs using commands such as display logbuffer or investigate saved log files.

SNMP agent information primarily provides information used by management systems. Trap messages normally report significant events or state changes, while debugging information provides detailed protocol or system diagnostics.

Neither traps nor debugging output is the primary source for reconstructing an accidental configuration change.

Therefore, option C is correct. Recovering the exact deleted address depends on whether the relevant configuration-operation records were retained.

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Link-LSA (ID 0.0.0.4):This LSA is originated by each router to describe its link-local IPv6 address and prefixes.The value 0.0.0.4 maps to the interface on R1, which has Router ID 10.0.1.1.✅ So the origin router is 10.0.1.1.

Network-LSA (ID 0.0.0.5):This LSA is generated by the DR on the link. In the diagram, R4 (10.0.4.4) is connected to the shared network (GE0/0/1).✅ So the origin router is 10.0.4.4.

Inter-Area-Prefix-LSA (ID 0.0.0.1):This LSA is used to describe routes from other areas and is generated by an ABR.In this case, R3 (Router ID 10.0.3.3) acts as the ABR.✅ So the origin router is 10.0.3.3.

Intra-Area-Prefix-LSA (ID 0.0.0.2):This references a Network-LSA, and the reference type is 1 (Network-LSA).Since the Network-LSA (0.0.0.5) came from 10.0.4.4, this also must have been generated by R4.✅ So the origin router is 10.0.4.4.

✅ Final Answer Summary:

Number

Origin Router

1

10.0.1.1

2

10.0.4.4

3

10.0.3.3

4

10.0.4.4

Official Huawei Extract:

" Each router in OSPFv3 generates Link-LSAs for each interface. The DR generates Network-LSAs. ABRs generate Inter-Area LSAs, and the Intra-Area-Prefix LSA references either Router or Network LSAs depending on the link type. "

— [Huawei HCIA-Datacom OSPFv3 LSAs Section]