- A
The EEM applet is configured to send a trap, but the 'snmp-server host' command is missing, so the router has no destination for the trap.
Without 'snmp-server host', the router does not know where to send the trap. The EEM action will fail silently.
- B
The syslog message is not matching the EEM trigger pattern correctly.
Why wrong: The scenario states the syslog message is generated and logged, so the trigger should work.
- C
The EEM applet is not registered due to a syntax error.
Why wrong: If there were a syntax error, the applet would not be registered, and the syslog would not trigger it. But the syslog is generated, so the applet is likely registered.
- D
The SNMP community string is not configured with RW privileges.
Why wrong: Traps can be sent with RO community, but the host command is missing, so no destination.
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.
Router R10 is configured with SNMP and EEM. An EEM applet is configured to send an SNMP trap when a specific syslog message is generated. The applet uses the 'action snmp-trap' command. However, the NMS receives no trap. The syslog message is generated and logged. The router's show snmp statistics shows TrapsSent: 0. What is the root cause?
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 EEM applet is configured to send a trap, but the 'snmp-server host' command is missing, so the router has no destination for the trap.
Option A is correct because the EEM applet uses the 'action snmp-trap' command to generate a trap, but without the 'snmp-server host' command, the router has no configured destination to send the trap to. The 'show snmp statistics' output showing TrapsSent: 0 confirms that the trap was generated internally but never transmitted, which is the classic symptom of a missing trap destination. The syslog message being logged and the applet triggering correctly rules out pattern-matching or registration issues.
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 EEM applet is configured to send a trap, but the 'snmp-server host' command is missing, so the router has no destination for the trap.
Why this is correct
Without 'snmp-server host', the router does not know where to send the trap. The EEM action will fail silently.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The syslog message is not matching the EEM trigger pattern correctly.
Why it's wrong here
The scenario states the syslog message is generated and logged, so the trigger should work.
- ✗
The EEM applet is not registered due to a syntax error.
Why it's wrong here
If there were a syntax error, the applet would not be registered, and the syslog would not trigger it. But the syslog is generated, so the applet is likely registered.
- ✗
The SNMP community string is not configured with RW privileges.
Why it's wrong here
Traps can be sent with RO community, but the host command is missing, so no destination.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that 'action snmp-trap' alone is sufficient to send a trap, when in fact the 'snmp-server host' command is mandatory to define the trap receiver.
Trap categories for this question
Command / output trap
Traps can be sent with RO community, but the host command is missing, so no destination.
Scenario analysis trap
The scenario states the syslog message is generated and logged, so the trigger should work.
Detailed technical explanation
How to think about this question
The 'action snmp-trap' command in EEM generates an SNMPv2c trap (by default) using the router's SNMP engine, but the trap is queued locally until a destination is configured via 'snmp-server host'. Without this command, the trap is discarded because the SNMP process has no target IP address, port, or community string to use for transmission. In real-world scenarios, this is a common misconfiguration when EEM is used for automated notifications, as engineers often focus on the applet logic but forget the underlying SNMP infrastructure.
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.
TExam Day Tips
- 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 junior network technician can log in to a core router but cannot reach the enable prompt or configuration mode. The AAA server is authenticating the login — but the authorisation policy only grants privilege level 1, not 15. Authentication (who you are) is working; authorisation (what you can do) is not.
What to study next
Got this wrong? Here's your next step.
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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 EEM applet is configured to send a trap, but the 'snmp-server host' command is missing, so the router has no destination for the trap. — Option A is correct because the EEM applet uses the 'action snmp-trap' command to generate a trap, but without the 'snmp-server host' command, the router has no configured destination to send the trap to. The 'show snmp statistics' output showing TrapsSent: 0 confirms that the trap was generated internally but never transmitted, which is the classic symptom of a missing trap destination. The syslog message being logged and the applet triggering correctly rules out pattern-matching or registration issues.
What should I do if I get this 300-410 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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