This 350-401 practice question tests your understanding of bgp. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A network engineer runs the following command on Router R1:
R1# show bgp ipv4 unicast 192.168.1.0/24
BGP routing table entry for 192.168.1.0/24, version 15 Paths: (1 available, best #1, table default) Advertised to update-groups: 1 Refresh Epoch 1 65050, (received & used)
10.0.1.2 from 10.0.1.2 (10.0.0.2)
Origin IGP, metric 0, localpref 100, weight 0, valid, external, best rx pathid: 0, tx pathid: 0x0
Based on this output, what can be concluded?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
The route was learned from an internal BGP peer.
Why wrong: The output says 'external', meaning it is an eBGP route, not iBGP.
The route is from AS 65050 and is the best path.
The AS_PATH shows 65050, and the path is marked as 'best'.
The route has a local preference of 0.
Why wrong: The local preference is 100, not 0.
The route is not valid because it is external.
Why wrong: The route is marked as 'valid', so it is valid.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The route is from AS 65050 and is the best path.
The output shows the BGP table entry for 192.168.1.0/24 with path 65050, and the line 'valid, external, best' confirms that this route is from AS 65050 and is selected as the best path. The 'best' keyword in the status flags directly indicates that this path is the best among all available paths for this prefix.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
The route was learned from an internal BGP peer.
Why it's wrong here
The output says 'external', meaning it is an eBGP route, not iBGP.
The route is from AS 65050 and is the best path.
Why this is correct
The AS_PATH shows 65050, and the path is marked as 'best'.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
The route has a local preference of 0.
Why it's wrong here
The local preference is 100, not 0.
The route is not valid because it is external.
Why it's wrong here
The route is marked as 'valid', so it is valid.
Common exam traps
Cisco often tests the distinction between 'valid' and 'best' — candidates may incorrectly assume that an external route is automatically invalid or that 'external' implies a problem, but the output clearly shows the route is both valid and best.
Trap categories for this question
Command / output trap
The output says 'external', meaning it is an eBGP route, not iBGP.
Detailed technical explanation
The BGP best-path selection algorithm considers multiple attributes, and in this output, the path from AS 65050 has a local preference of 100 (default), metric 0, and weight 0, making it the best path. The 'received & used' notation indicates that the route was received from an eBGP peer and is installed in the routing table, while the 'rx pathid: 0, tx pathid: 0x0' fields are used for BGP add-path and label-index tracking in modern IOS versions.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
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FAQ
BGP — This question tests BGP — Read the scenario before looking for a memorised answer..
The correct answer is: The route is from AS 65050 and is the best path. — The output shows the BGP table entry for 192.168.1.0/24 with path 65050, and the line 'valid, external, best' confirms that this route is from AS 65050 and is selected as the best path. The 'best' keyword in the status flags directly indicates that this path is the best among all available paths for this prefix.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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