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4A0-101 · Question #252
4A0-101 Question #252: Real Exam Question with Answer & Explanation
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Question
Two IS-IS routers are exchanging Hello packets with different authentication types. Which of the following is TRUE?
Options
- ADifferent authentication types are not possible because IS-IS only supports password
- BAn adjacency will not be formed.
- CThe two routers negotiate the authentication type and then reach the up state.
- DOnly an L2 adjacency will form, as long as both routers are L2 capable.
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