Huawei
H12-821_V1.0 · Question #977
H12-821_V1.0 Question #977: Real Exam Question with Answer & Explanation
The correct answer is A. Level-2 maps to R1; Level-1 maps to R2; Level-1-2 maps to R3; Level-1-2 maps to R4. See the full explanation below for the reasoning.
Question
All routers in a network run IS-IS and are all in Area 49.0001. The LSDB of R1 is as shown in the figure. Based on this, match the Level of the four routers with their corresponding router IDs. The network diagram shows: R1 (0001.0100.1001), R2 (0001.0000.2002), R3 (0100.0000.3003), R4 (0001.0000.4004) are all connected to S (0001.0000.0000) within IS-IS Area 49.0001. R1's IS-IS LSDB output indicates: Level-1 entries for 0001.0000.4004.00 (R4), 0001.0000.2002.00 (R2), 0001.0100.1001.00* (R1), 0001.0100.1001.01*. Level-2 entries for 0001.0000.2002.00 (R2), 0001.0000.3003.00 (R3), 0001.0100.1001.00* (R1).
Options
- ALevel-2 maps to R1; Level-1 maps to R2; Level-1-2 maps to R3; Level-1-2 maps to R4
- BNot provided in the source.
- CNot provided in the source.
- DNot provided in the source.
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