Q16Advanced Addressing and Routing SolutionsMultiple answers
A network engineer needs to segregate three interconnected campus networks with IS-IS routing. A two-layer hierarchy is required to support large routing domains and prevent more-specific routes from each campus network from being automatically advertised to routers in other campus networks. Which two actions should the engineer take to achieve this segregation? (Choose two.)
Select 2 answers.
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Discussion · 2
1
B & E are correct.
1
A. Remember that level 2 is needed for inter-area communication, so both should be level 1/2. Wrong.
B. Routers with two levels can communicate intra and inter area, forwarding packets as needed. Correct
C. The NET value must be unique and cannot match. Also, having internal routers handle level 1/2 is not efficient because they use 2 different tables. The level 2 won't be used. Wrong.
D. MTU in this case has nothing to do with the prompt. Wrong
E. Internal routers use level 1 and unique NET IDs. Correct