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400-007 · Question #417
400-007 Question #417: Real Exam Question with Answer & Explanation
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Question
While positive feedback loops generally don't last long enough to bring down a network completly, then long enough to disrupt traffic flows or to cause the networkto converge more slowly then it should. What are two examples of cases where a positive feedback loop can be long-lived and devasting to the control plane? (Choose two)
Options
- Awhen input traffic volumes on an interfaces causes the interface queue to overflow
- Bthe rate at which the information carried in the various control plane protocols changes
- Cmodifying the flow of traffic through the network by steering traffic based on QoS attributes
- Dduring redistribution of reachablity information between multiple control planes
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