300-420 · Question #233
Refer to the exhibit. An architect is designing a hierarchical ISIS solution for a customer with these requirements: - Routers will double in all areas within the next 24 months. - Link flaps within…
The correct answer is A. C101 Level 1/2, A201 Level 1, and A101 Level 2. An L2 router is similar to an OSPF backbone router. A router that has both Level 1 and 2 routes is similar to an OSPF area border router (ABR). IS-IS does not define a backbone area like OSPF’s area 0, but you can consider the IS-IS backbone a continuous path of adjacencies…
Question
Refer to the exhibit. An architect is designing a hierarchical ISIS solution for a customer with these requirements:
- Routers will double in all areas within the next 24 months.
- Link flaps within areas 20 and 30 must not impact the backbone area.
- Traffic originating from A201 and A302 routers must connect to
application servers in the backbone. Which design must the architect select?
Exhibit
Options
- AC101 Level 1/2, A201 Level 1, and A101 Level 2
- BC201 Level 1/2, A301 Level 1/2, and A102 Level 1/2
- CC302 Level 2, A302 Level 1/2, and A101 Level 2
- DC102 Level 2, A202 Level 2, and A102 Level 1
How the community answered
(54 responses)- A65% (35)
- B20% (11)
- C6% (3)
- D9% (5)
Explanation
An L2 router is similar to an OSPF backbone router. A router that has both Level 1 and 2 routes is similar to an OSPF area border router (ABR). IS-IS does not define a backbone area like OSPF’s area 0, but you can consider the IS-IS backbone a continuous path of adjacencies among Level 2
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