easyMultiple ChoiceObjective-mapped
300-410 Practice Question: Runs the following command to verify BGP route…
A network engineer runs the following command to verify BGP route filtering:
R1# show bgp ipv4 unicast 192.168.1.0/24
BGP routing table entry for 192.168.1.0/24, version 2 Paths: (1 available, best #1, table default) Advertised to update-groups: 1 Refresh Epoch 1 Local, (received & used)
10.1.1.2 (metric 20) from 10.1.1.2 (2.2.2.2)
Origin IGP, metric 0, localpref 100, valid, internal, best rx pathid: 0, tx pathid: 0x0 Community: no-export
What does the 'Community: no-export' indicate?
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 route will not be advertised to any eBGP peers.
The community 'no-export' indicates that this route should not be advertised to any eBGP peers. This is a well-known community that controls route propagation.
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 route will not be advertised to any iBGP peers.
Why it's wrong here
The no-export community prevents advertisement to eBGP peers, not iBGP.
- ✓
The route will not be advertised to any eBGP peers.
Why this is correct
The no-export community tells BGP not to advertise the route to any eBGP peers.
- ✗
The route is filtered by an inbound route-map.
Why it's wrong here
The community is attached to the route, not necessarily indicating filtering.
- ✗
The route is not installed in the routing table.
Why it's wrong here
The route is valid and best, so it is installed.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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