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JN0-660 · Question #129
JN0-660 Question #129: Real Exam Question with Answer & Explanation
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Question
Click the Exhibit button. R1 and R2 are directly connected using the interfaces shown in the exhibit. R1 can ping R2's interface, and R2 can ping R1's interface. The IS-IS adjacency will not come up. What is causing the adjacency to fail?
Exhibit
Options
- AThe correct levels are not configured under protocols isis.
- BThe link MTU is too small to support IS-IS.
- CAuthentication is not properly configured for the adjacency.
- DBoth routers are configured as the DR, causing a conflict.
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