- A
The engineer combined 'linkdown' and 'linkup' in a single command; they must be configured as separate 'snmp-server enable traps' commands.
Correct because the IOS syntax requires separate commands for each trap type; combining them is invalid.
- B
The NMS is configured to filter out link up/down traps, so they are not displayed.
Why wrong: Incorrect because the NMS receives other traps, indicating the issue is on the router side.
- C
The router needs the 'snmp-server trap-source' command to specify the loopback interface for traps.
Why wrong: Incorrect because other traps are received, so trap-source is not the issue.
- D
The 'snmp-server host' command must include the 'udp-port' option to specify port 162.
Why wrong: Incorrect because the default UDP port for traps is 162, so that is not required.
Quick Answer
The answer is that the engineer incorrectly combined 'linkdown' and 'linkup' in a single 'snmp-server enable traps snmp' command, which the Cisco IOS does not recognize as valid syntax. This is because the 'snmp-server enable traps' command requires each trap type to be enabled individually; when multiple keywords are strung together on one line, the router ignores the entire string, leaving link up/down SNMP traps not enabled despite the command being present. On the Cisco CCNP ENARSI 300-410 exam, this scenario tests your understanding of SNMP trap configuration nuances, often appearing as a trick where other traps work but interface-specific traps fail. A common memory tip is to treat each trap as its own separate activation—think of it as "one trap, one command"—so you never combine 'linkdown' and 'linkup' into a single line.
300-410 SNMP Troubleshooting Practice Question
This 300-410 practice question tests your understanding of snmp troubleshooting. 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.
An engineer is troubleshooting why the NMS is not receiving SNMP traps for interface up/down events on router R4. The configuration includes 'snmp-server enable traps snmp linkdown linkup' and 'snmp-server host 10.1.1.200 version 2c public'. The NMS can receive other traps from R4. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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 engineer combined 'linkdown' and 'linkup' in a single command; they must be configured as separate 'snmp-server enable traps' commands.
The command 'snmp-server enable traps snmp linkdown linkup' is incorrect; the correct syntax is 'snmp-server enable traps snmp linkdown' and 'snmp-server enable traps snmp linkup' as separate commands. The combined keyword is not recognized, so those traps are not enabled.
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 engineer combined 'linkdown' and 'linkup' in a single command; they must be configured as separate 'snmp-server enable traps' commands.
Why this is correct
Correct because the IOS syntax requires separate commands for each trap type; combining them is invalid.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The NMS is configured to filter out link up/down traps, so they are not displayed.
Why it's wrong here
Incorrect because the NMS receives other traps, indicating the issue is on the router side.
- ✗
The router needs the 'snmp-server trap-source' command to specify the loopback interface for traps.
Why it's wrong here
Incorrect because other traps are received, so trap-source is not the issue.
- ✗
The 'snmp-server host' command must include the 'udp-port' option to specify port 162.
Why it's wrong here
Incorrect because the default UDP port for traps is 162, so that is not required.
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.
- →
SNMP Troubleshooting — study guide chapter
Learn the concepts, then practise the questions
- →
SNMP Troubleshooting practice questions
Targeted practice on this topic area only
- →
All 300-410 questions
2,152 questions across all exam domains
- →
Cisco CCNP ENARSI 300-410 study guide
Full concept coverage aligned to exam objectives
- →
300-410 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related 300-410 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Layer 3 Technologies practice questions
Practise 300-410 questions linked to Layer 3 Technologies.
EIGRP Troubleshooting practice questions
Practise 300-410 questions linked to EIGRP Troubleshooting.
OSPF Troubleshooting (v2/v3) practice questions
Practise 300-410 questions linked to OSPF Troubleshooting (v2/v3).
BGP Troubleshooting practice questions
Practise 300-410 questions linked to BGP Troubleshooting.
Route Redistribution practice questions
Practise 300-410 questions linked to Route Redistribution.
Policy-Based Routing (PBR) practice questions
Practise 300-410 questions linked to Policy-Based Routing (PBR).
VRF-Lite practice questions
Practise 300-410 questions linked to VRF-Lite.
Route Maps and Route Filtering practice questions
Practise 300-410 questions linked to Route Maps and Route Filtering.
Administrative Distance practice questions
Practise 300-410 questions linked to Administrative Distance.
Route Summarization practice questions
Practise 300-410 questions linked to Route Summarization.
Bidirectional Forwarding Detection (BFD) practice questions
Practise 300-410 questions linked to Bidirectional Forwarding Detection (BFD).
VPN Technologies practice questions
Practise 300-410 questions linked to VPN Technologies.
Practice this exam
Start a free 300-410 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this 300-410 question test?
SNMP Troubleshooting — This question tests SNMP Troubleshooting — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The engineer combined 'linkdown' and 'linkup' in a single command; they must be configured as separate 'snmp-server enable traps' commands. — The command 'snmp-server enable traps snmp linkdown linkup' is incorrect; the correct syntax is 'snmp-server enable traps snmp linkdown' and 'snmp-server enable traps snmp linkup' as separate commands. The combined keyword is not recognized, so those traps are not enabled.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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 →
Last reviewed: Jun 18, 2026
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.