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300-410 Router R10 is configured with SNMP and EEM Practice Question
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?
⚠ Common exam trap
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.
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.
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.
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.
- ✗
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.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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