Question 378 of 2,152

BGP Troubleshooting →easyMultiple ChoiceObjective-mapped

Interpreting show bgp for Locally Originated Routes

This 300-410 practice question tests your understanding of bgp troubleshooting. 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 10.1.1.0/24

BGP routing table entry for 10.1.1.0/24, version 2 Paths: (1 available, best #1, table default) Advertised to update-groups: 1 Refresh Epoch 1 Local

10.1.1.1 from 0.0.0.0 (10.1.1.1)

Origin IGP, metric 0, localpref 100, weight 32768, valid, sourced, best rx pathid: 0, tx pathid: 0x0

Based on this output, which statement is correct?

A
The route 10.1.1.0/24 was learned from an eBGP peer.
Why wrong: The next hop is 0.0.0.0 and from 0.0.0.0, indicating it is locally originated, not learned from a peer.
B
The route 10.1.1.0/24 is locally originated and is the best path.
The output shows 'sourced' and 'best', meaning it is a local network that is the best path in the BGP table.
C
The route 10.1.1.0/24 has a weight of 100.
Why wrong: The weight is 32768, not 100. Local preference is 100.
D
The route 10.1.1.0/24 is not being advertised to any peer.
Why wrong: It is advertised to update-group 1, so it is being advertised.

Full breakdown with real-world context →

Quick Answer

The correct answer is that the route 10.1.1.0/24 is locally originated and is the best path. This is confirmed by the presence of the keyword "sourced" in the BGP output, which specifically indicates the route was injected into BGP locally—typically via a network statement or redistribution—and the next hop of 0.0.0.0 with the router’s own IP (10.1.1.1) further proves local generation. The combination of "valid, sourced, best" means the route is usable, originated on this router, and selected as the optimal path for advertisement to peers. On the Cisco CCNP ENARSI 300-410 exam, interpreting show bgp for locally originated routes tests your ability to distinguish between routes learned from neighbors and those injected locally, a common pitfall where candidates mistake a next hop of 0.0.0.0 for a missing route rather than a local origin. Remember the memory tip: "Sourced says sourced here, not sourced from a peer"—if you see "sourced" and a next hop of 0.0.0.0, the route was born on this box.

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 10.1.1.0/24 is locally originated and is the best path.

The output shows a locally originated network (10.1.1.0/24) with next hop 10.1.1.1 (the router itself). It is marked as valid, sourced, and best, meaning it is injected into BGP and will be advertised to peers.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

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 10.1.1.0/24 was learned from an eBGP peer.
Why it's wrong here
The next hop is 0.0.0.0 and from 0.0.0.0, indicating it is locally originated, not learned from a peer.
✓
The route 10.1.1.0/24 is locally originated and is the best path.
Why this is correct
The output shows 'sourced' and 'best', meaning it is a local network that is the best path in the BGP table.
Related concept
Read the scenario before looking for a memorised answer.
✗
The route 10.1.1.0/24 has a weight of 100.
Why it's wrong here
The weight is 32768, not 100. Local preference is 100.
✗
The route 10.1.1.0/24 is not being advertised to any peer.
Why it's wrong here
It is advertised to update-group 1, so it is being advertised.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Detailed technical explanation

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

KKey Concepts to Remember

Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.

TExam Day Tips

Underline the problem statement mentally.
Watch for words such as best, first, most likely and least administrative effort.
Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

A practitioner preparing for the 300-410 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.

What to study next

Got this wrong? Here's your next step.

Identify which 300-410 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.

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FAQ

Questions learners often ask

What does this 300-410 question test?

BGP Troubleshooting — This question tests BGP Troubleshooting — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The route 10.1.1.0/24 is locally originated and is the best path. — The output shows a locally originated network (10.1.1.0/24) with next hop 10.1.1.1 (the router itself). It is marked as valid, sourced, and best, meaning it is injected into BGP and will be advertised to peers.

What should I do if I get this 300-410 question wrong?

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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