mediumMultiple ChoiceObjective-mapped
300-410 Practice Question: Runs the following command on Router R1: R1# show…
A network engineer runs the following command on Router R1:
R1# show bgp ipv4 unicast summary
BGP router identifier 192.168.1.1, local AS number 65001 BGP table version is 10, main routing table version 10
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 10.1.1.2 4 65002 1200 1200 10 0 0 01:00:00 5 10.2.2.2 4 65003 0 0 0 0 0 never Active
Based on this output, what is the problem with the neighbor 10.2.2.2?
⚠ Common exam trap
Cisco often tests the distinction between 'Idle' and 'Active' states, where candidates mistakenly assume 'Active' means the session is up or that prefixes are being exchanged, when in fact it indicates a failed or pending TCP connection attempt.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The neighbor is not reachable or is not configured to accept BGP connections.
The 'Active' state in BGP indicates that the router is actively trying to establish a TCP connection to the neighbor but has not yet succeeded. This typically occurs because the neighbor is unreachable (no route to the destination IP), the neighbor is not configured to accept BGP connections (e.g., no BGP process or incorrect ACL), or a firewall is blocking TCP port 179. The output shows 0 messages sent/received and 'never' uptime, confirming no session has ever been established.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The neighbor is not reachable or is not configured to accept BGP connections.
Why this is correct
The Active state indicates that the router is attempting to establish a TCP connection but is not receiving a response, likely due to unreachability or misconfiguration.
- ✗
The neighbor is in Idle state because of a hold timer expiry.
Why it's wrong here
The state is Active, not Idle; Idle would indicate a different issue.
- ✗
The neighbor has received 5 prefixes, indicating a successful session.
Why it's wrong here
The neighbor has 0 prefixes received (PfxRcd is not shown but implied by 0 MsgRcvd).
- ✗
The BGP table version is 10, meaning there is a routing loop.
Why it's wrong here
The table version is a sequence number and does not indicate loops.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 300-410 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 300-410 exam.