easyMultiple Choice
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 neighbors 10.1.12.2 received-routes
BGP table version is 15, local router ID is 10.1.1.1 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter, x best-external, a additional-path, c RIB-compressed, Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path *> 10.2.2.0/24 10.1.12.2 0 0 65002 i
Total number of prefixes 1
Based on this output, what can be inferred about the BGP session?
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 BGP session is established and the neighbor is advertising one prefix.
The output shows that R1 has received one prefix (10.2.2.0/24) from neighbor 10.1.12.2. The prefix is valid and best. This indicates the BGP session is established and exchanging routes.
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 BGP session is not established.
Why it's wrong here
The received-routes output lists a prefix learned from 10.1.12.2, which is only possible once the session reaches Established and routes are exchanged. A non-established session would show nothing received; Active state is a separate concern, not proof of this.
- ✓
The BGP session is established and the neighbor is advertising one prefix.
Why this is correct
The received-routes output displays one prefix, 10.2.2.0/24, marked valid and best, which is only possible when the TCP session reached Established state and the neighbour sent an UPDATE. A non-established session would return no received prefixes.
- ✗
The BGP session is in Active state.
Why it's wrong here
Active state means the router is actively attempting TCP port 179 connection and no prefixes have been exchanged. Receiving a route from 10.1.12.2 proves the session reached Established, so Active is contradicted by the output itself.
- ✗
The BGP session is in Idle state.
Why it's wrong here
Idle state means the neighbour is down and no BGP messages flow, so no received routes could appear. The output shows a prefix learned from 10.1.12.2, which requires an Established session; Idle is the initial state before any connection attempt succeeds.
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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.