hardMultiple ChoiceObjective-mapped
300-410 Practice Question: Is troubleshooting a router that is not executing…
A network engineer is troubleshooting a router that is not executing an EEM applet that is supposed to run when a specific interface goes down. The applet is configured with event syslog pattern 'LINK-3-UPDOWN' and matches the interface with a regex. The engineer checks the syslog and sees the message 'LINK-3-UPDOWN: GigabitEthernet0/1, changed state to down' but the applet does not run. What is the most likely 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 regex pattern in the applet does not match the syslog message.
The EEM applet may have a regex that does not match the actual syslog message format. The engineer should verify the regex pattern using 'show event manager policy' or test the pattern.
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 disabled.
Why it's wrong here
Incorrect because if the applet were disabled, it would not appear in the configuration; the engineer likely checked the config.
- ✗
The syslog message is not being sent to the EEM server due to logging level restrictions.
Why it's wrong here
Incorrect because the syslog message is generated and visible; EEM intercepts syslog messages regardless of logging destination.
- ✓
The regex pattern in the applet does not match the syslog message.
Why this is correct
Correct because a mismatch in the regex pattern is a common cause for an applet not triggering.
- ✗
The interface is not being monitored because it is a subinterface.
Why it's wrong here
Incorrect because the syslog message indicates the interface is GigabitEthernet0/1, which is a physical interface.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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