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4A0-C01 · Question #127
4A0-C01 Question #127: Real Exam Question with Answer & Explanation
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Question
What causes an adjacency to change from down to two ways?
Options
- AWhen a link state update is received in response to a link state request.
- BWhen a router receives a Hello packet that contains its own router ID in the neighbor list from a neighbor.
- CWhen a router receives a database description packet from a neighbor.
- DWhen a link state acknowledgement is received in response to a link state update.
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