JN0643 Enterprise Routing and Switching, Professional (JNCIPENT) Free Practice Test — 29 Questions

Exam Code: JNCIPENT

29 questions · Full explanations · No account required

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Question 1 of 29

Anya, a senior network engineer responsible for enterprise routing, is investigating a recurring issue where a critical BGP peering session with a key business partner intermittently drops, resulting in a loss of connectivity. Upon investigation, she observes that the BGP neighbor state frequently reverts to \"Idle\" without any apparent routing instability or interface flaps on her side. The partner has confirmed no configuration changes on their end. What is the most likely underlying cause for the BGP session consistently failing to establish or re-establish beyond the initial connection attempt, leading to the \"Idle\" state?

Network infrastructure elements are blocking the establishment of the TCP session on port 179 between the BGP peers.
The BGP router is experiencing excessive CPU utilization, preventing the processing of BGP keepalives.
The configured BGP timers (e.g., hold-time, keepalive interval) are significantly mismatched between the two peers.
An incorrect route-map is applied to the BGP neighbor, causing all incoming routes to be filtered prematurely.

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