The correct interpretation is that the spoke 10.0.0.2 has successfully registered with the hub, and its NBMA address is 192.168.1.2. This is confirmed by the "Flags: unique registered" field in the show ip nhrp detail output, which indicates that the spoke’s mapping between its tunnel IP (10.0.0.2) and its physical NBMA address (192.168.1.2) has been accepted and stored by the hub. The "dynamic" type and the "Created: 00:10:15" timer further confirm that this is a live, learned registration rather than a static entry. On the Cisco CCNP ENARSI 300-410 exam, verifying NHRP registration success with show ip nhrp detail is a common task for DMVPN troubleshooting; a frequent trap is misreading the "no socket" line—this simply means the local router has no active NHRP socket for that peer, not that registration failed. A helpful memory tip: look for the word "registered" in the Flags field—if you see it, the spoke is in the club.
300-410 DMVPN Practice Question
This 300-410 practice question tests your understanding of dmvpn. 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 to verify DMVPN tunnel status:
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The spoke 10.0.0.2 has registered with the hub and its NBMA address is 192.168.1.2.
The output shows a dynamic NHRP cache entry for a spoke (10.0.0.2) with NBMA address 192.168.1.2, indicating the spoke has registered and the entry is valid.
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 spoke 10.0.0.2 has registered with the hub and its NBMA address is 192.168.1.2.
Why this is correct
Correct: The entry is dynamic, unique, registered, and shows the NBMA address.
Related concept
Read the scenario before looking for a memorised answer.
✗
The spoke 10.0.0.2 is using a static NBMA mapping.
Why it's wrong here
Incorrect because the type is 'dynamic', not static.
✗
The NHRP entry is about to expire and needs re-registration.
Why it's wrong here
Incorrect because the expire time is 01:49:45, which is not near expiry.
✗
The spoke has not registered; the entry is incomplete.
Why it's wrong here
Incorrect because the flags include 'registered'.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 300-410 question in full detail.
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.
DMVPN — This question tests DMVPN — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The spoke 10.0.0.2 has registered with the hub and its NBMA address is 192.168.1.2. — The output shows a dynamic NHRP cache entry for a spoke (10.0.0.2) with NBMA address 192.168.1.2, indicating the spoke has registered and the entry is valid.
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
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A network engineer runs the following command to troubleshoot a DMVPN spoke not registering with the hub:
R2# debug nhrp
NHRP: Send Registration Request via Tunnel0 10.0.0.2, target 10.0.0.1
NHRP: Receive Registration Reply via Tunnel0 10.0.0.1, src 10.0.0.1, dst 10.0.0.2
NHRP: Registration successful for 10.0.0.2/32 via Tunnel0
What does this output indicate?
medium
A.The spoke is unable to reach the hub; the registration request is being sent but no reply is received.
✓ B.The spoke has successfully registered its tunnel IP 10.0.0.2/32 with the hub at 10.0.0.1.
C.The spoke is sending a registration request to 10.0.0.1 but the hub is not responding, causing a timeout.
D.The spoke is attempting to register with the wrong hub IP address.
Why B: The debug output shows a successful NHRP registration: the spoke sends a registration request to the hub and receives a reply, confirming that the spoke's tunnel IP is registered with the hub.
Last reviewed: Jun 18, 2026
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.