The answer is that the router has two NHRP mappings for dynamic spoke-to-spoke tunnels via Tunnel0. This is correct because the `show ip nhrp detail` command reveals the NHRP cache detail, which stores mappings between a destination tunnel IP address (e.g., 10.1.1.1) and its corresponding NBMA address (e.g., 192.168.1.2), along with timers and flags. In this output, both entries are marked as "dynamic" and "authoritative," confirming they were learned via NHRP registration and are used for direct spoke-to-spoke communication in a DMVPN network, not for hub-mediated traffic. On the Cisco CCNP ENARSI 300-410 exam, this tests your ability to interpret NHRP cache entries and distinguish dynamic spoke mappings from static or hub entries—a common trap is confusing the NBMA address with the tunnel IP. A key memory tip: "Dynamic and authoritative means the spoke learned it directly, so traffic goes straight, not through the hub."
300-410 Network Logging and Syslog Practice Question
This 300-410 practice question tests your understanding of network logging and syslog. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 troubleshoot a Network Logging and Syslog issue:
R1# show ip nhrp detail
Output:
10.1.1.1/32 via 10.0.0.2, Tunnel0 created 00:05:00, expire 01:55:00
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The router has two NHRP mappings for dynamic spoke-to-spoke tunnels via Tunnel0.
The output shows NHRP cache entries with mappings between tunnel IP and NBMA addresses. This is typical for DMVPN spoke-to-spoke communication.
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 router has two NHRP mappings for dynamic spoke-to-spoke tunnels via Tunnel0.
Why this is correct
The entries show dynamic type with NBMA addresses, indicating DMVPN dynamic tunnels.
Related concept
Read the scenario before looking for a memorised answer.
✗
The router is using static NHRP mappings.
Why it's wrong here
The type is 'dynamic', not static.
✗
The router is experiencing NHRP authentication failures.
Why it's wrong here
No authentication errors are shown.
✗
The router has no NHRP entries.
Why it's wrong here
The output shows two entries.
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
No authentication errors are shown.
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.
Network Logging and Syslog — This question tests Network Logging and Syslog — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The router has two NHRP mappings for dynamic spoke-to-spoke tunnels via Tunnel0. — The output shows NHRP cache entries with mappings between tunnel IP and NBMA addresses. This is typical for DMVPN spoke-to-spoke communication.
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 →
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.