hardMultiple 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 ip bgp neighbors 10.2.2.2 advertised-routes
BGP table version is 10, 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 *> 10.1.1.0/24 0.0.0.0 0 32768 i *> 10.2.2.0/24 0.0.0.0 0 32768 i
Total number of prefixes 2
Based on this output, what is the problem?
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 routes are correctly advertised with next hop 0.0.0.0, which is normal for locally originated routes.
The output shows that R1 is advertising two routes to the BGP neighbor 10.2.2.2. Both routes have a next hop of 0.0.0.0, which is normal for locally originated routes (e.g., via network statement or redistribution). When advertising to an eBGP peer, the router automatically changes the next hop to its own interface IP address if the next hop is not reachable via the eBGP neighbor. However, the 'show ip bgp neighbors advertised-routes' command displays the routes as they are in the BGP table, not the actual advertisement sent. The next hop 0.0.0.0 indicates the route is local, and BGP will update it appropriately when sending to an eBGP peer. Therefore, there is no problem; the routes are being advertised correctly.
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 routes are correctly advertised with next hop 0.0.0.0, which is normal for locally originated routes.
Why this is correct
Correct. The next hop 0.0.0.0 is normal for locally originated routes, and the router will adjust it when advertising to eBGP peers.
- ✗
The routes are not being advertised to eBGP peers because the next hop is 0.0.0.0, which is invalid for eBGP.
Why it's wrong here
Incorrect. The next hop 0.0.0.0 is not an issue; BGP automatically sets the next hop to the router's interface IP for eBGP advertisements.
- ✗
The routes are being advertised to iBGP peers only, as indicated by the next hop 0.0.0.0.
Why it's wrong here
Incorrect. The output does not indicate that routes are only advertised to iBGP; it shows routes in the BGP table which can be advertised to both iBGP and eBGP.
- ✗
The routes are redistributed from an IGP into BGP, and the next hop is correctly set to 0.0.0.0.
Why it's wrong here
Incorrect. While the routes may be redistributed, the next hop 0.0.0.0 is still normal and does not indicate a problem.
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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.