mediumMultiple Choice
300-410 Practice Question: Runs the following command to troubleshoot a BGP…
A network engineer runs the following command to troubleshoot a BGP Troubleshooting issue:
R1# show bgp neighbors 10.1.1.2 advertised-routes
BGP table version is 14, local router ID is 1.1.1.1 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 *> 10.0.0.0/24 0.0.0.0 0 32768 i *> 192.168.1.0/24 0.0.0.0 0 32768 i
Total number of prefixes 2
What does this output indicate?
⚠ Common exam trap
The trap is confusing 'advertised-routes' (outbound from local router) with 'received-routes' (inbound from neighbor), leading candidates to misinterpret the direction of 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
✓
R1 is advertising two routes to neighbor 10.1.1.2, both originated locally.
The command 'show bgp neighbors 10.1.1.2 advertised-routes' displays the prefixes that the local router (R1) is sending to the specified neighbor. Both entries show next hop 0.0.0.0 and weight 32768, which are characteristics of locally originated routes (network statements or redistribution) in the BGP table, confirming R1 is advertising two locally originated prefixes to 10.1.1.2.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
R1 is receiving two routes from neighbor 10.1.1.2.
Why it's wrong here
advertised-routes displays outbound prefixes R1 sends to the neighbour, not inbound routes it receives. Receiving would be shown by show bgp neighbors 10.1.1.2 routes or received-routes. This option would fit if the command were the received-routes variant instead.
- ✓
R1 is advertising two routes to neighbor 10.1.1.2, both originated locally.
Why this is correct
The output lists two prefixes under advertised-routes for neighbour 10.1.1.2, satisfying the stem's troubleshooting aim of confirming outbound advertisements. Both carry next hop 0.0.0.0, weight 32768 and empty AS path, which are the markers of locally originated networks rather than routes learned from another peer.
- ✗
R1 is advertising two routes, but one is suppressed due to dampening.
Why it's wrong here
Both prefixes display the *> valid-best markers, and no s (suppressed) or d (damped) code appears beside either entry. Dampening would show the d status code. This option would be correct only if a prefix carried the d flag after repeated flaps exceeded the dampening thresholds.
- ✗
R1 is advertising two routes, but the neighbor is not receiving them due to filtering.
Why it's wrong here
The output lists exactly what R1 has queued to send; it cannot show whether the neighbour's inbound policy drops those prefixes. Verifying filtering requires the neighbour's received-routes or debug output. This option would fit only if the stem showed a mismatch between sent and received counts.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
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