- A
The route is not being advertised to any BGP peer.
Why wrong: The output shows 'Advertised to update-groups: 1', meaning it is being advertised.
- B
The route is missing the required Route Target community.
Why wrong: The output shows 'Extended Community: RT:100:100', so the RT is present.
- C
The route is functioning correctly with no issues.
All fields indicate a valid, best route with labels and RT.
- D
The route has an incorrect label binding.
Why wrong: Labels 18/19 are present and valid; no error is shown.
Question 760 of 2,152
300-410 MPLS L3VPN Practice Question
This 300-410 practice question tests your understanding of mpls l3vpn. 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 PE2:
PE2# show ip bgp vpnv4 vrf CUSTOMER_A 10.10.10.0 24
BGP routing table entry for 10.10.10.0/24, version 15 Paths: (1 available, best #1, table CUSTOMER_A) Advertised to update-groups: 1 Refresh Epoch 1 Local, imported path from 10.10.10.0/24
10.1.1.1 (metric 20) from 10.1.1.1 (10.1.1.1)
Origin incomplete, metric 0, localpref 100, valid, internal, best Extended Community: RT:100:100 mpls labels in/out 18/19
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 route is functioning correctly with no issues.
The output shows a VPNv4 route for VRF CUSTOMER_A. The route is marked as 'imported path from 10.10.10.0/24', which indicates it was imported from the global table or another VRF. The route is valid and best, with labels assigned. No problem is indicated; the route is functioning correctly.
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 is not being advertised to any BGP peer.
Why it's wrong here
The output shows 'Advertised to update-groups: 1', meaning it is being advertised.
- ✗
The route is missing the required Route Target community.
Why it's wrong here
The output shows 'Extended Community: RT:100:100', so the RT is present.
- ✓
The route is functioning correctly with no issues.
Why this is correct
All fields indicate a valid, best route with labels and RT.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The route has an incorrect label binding.
Why it's wrong here
Labels 18/19 are present and valid; no error is shown.
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.
Trap categories for this question
Command / output trap
The output shows 'Advertised to update-groups: 1', meaning it is being advertised.
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?
MPLS L3VPN — This question tests MPLS L3VPN — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The route is functioning correctly with no issues. — The output shows a VPNv4 route for VRF CUSTOMER_A. The route is marked as 'imported path from 10.10.10.0/24', which indicates it was imported from the global table or another VRF. The route is valid and best, with labels assigned. No problem is indicated; the route is functioning correctly.
What should I do if I get this 300-410 question wrong?
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 18, 2026
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