The correct interpretation is that the EEM applet TRACK-INTERFACE has successfully executed its syslog action, generating the message 'OSPF adjacency change detected'. This output from the debug event manager action syslog command confirms that the Embedded Event Manager (EEM) applet triggered its configured syslog action at runtime, meaning the event criteria (such as a tracked object or OSPF state change) was met and the action ran as designed. On the Cisco CCNP ENARSI 300-410 exam, this scenario tests your ability to read EEM debug output and distinguish between the applet name, the action type, and the actual message payload—a common trap is confusing the applet name with the syslog message itself. Remember that the format always follows applet name: action syslog msg: 'your message', so focus on the colon-separated fields. A useful memory tip: think of it as "Who said what"—the applet is the speaker, and the quoted text is the spoken message.
300-410 Embedded Event Manager (EEM) Practice Question
This 300-410 practice question tests your understanding of embedded event manager (eem). 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 an EEM issue:
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 'TRACK-INTERFACE' executed a syslog action and generated the message 'OSPF adjacency change detected'.
The debug output shows the execution of syslog actions within an EEM applet. It displays the applet name and the syslog message being generated. This is useful for verifying that syslog actions are working correctly.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
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 'TRACK-INTERFACE' executed a syslog action and generated the message 'OSPF adjacency change detected'.
Why this is correct
Correct. The debug output shows the applet generating the syslog message.
The EEM applet 'TRACK-INTERFACE' received a syslog message 'OSPF adjacency change detected'.
Why it's wrong here
Incorrect. The applet is generating the syslog message, not receiving it.
✗
The debug output shows the configuration of the syslog action for applet 'TRACK-INTERFACE'.
Why it's wrong here
Incorrect. This is debug output showing real-time execution, not configuration.
✗
The syslog message was generated by the system, not by the EEM applet.
Why it's wrong here
Incorrect. The output clearly indicates it was generated by the applet 'TRACK-INTERFACE'.
Common exam traps
Common exam trap: OSPF can fail even when IP connectivity looks correct
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Trap categories for this question
Command / output trap
Incorrect. This is debug output showing real-time execution, not configuration.
Detailed technical explanation
How to think about this question
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
KKey Concepts to Remember
OSPF neighbours must agree on key parameters.
Router ID selection can affect neighbour relationships and LSDB output.
OSPF cost influences the preferred path.
A route can appear in OSPF information but not become the installed route.
TExam Day Tips
→Check area mismatch first when OSPF adjacency fails.
→Review passive interfaces when a network is advertised but no neighbour forms.
→Use show ip ospf neighbor and show ip route clues carefully.
Key takeaway
OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Real-world example
How this comes up in practice
A network engineer at a university connects two campus buildings via a fibre link. Both routers run OSPF, but no adjacency forms — even though both routers can ping each other. The engineer finds one router is in area 0 and the other in area 1. OSPF adjacency requires matching area numbers, hello/dead timers, and network type. IP reachability alone is not enough.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 300-410 question in full detail.
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 300-410 OSPF questions on adjacency and route selection.
Embedded Event Manager (EEM) — This question tests Embedded Event Manager (EEM) — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: The EEM applet 'TRACK-INTERFACE' executed a syslog action and generated the message 'OSPF adjacency change detected'. — The debug output shows the execution of syslog actions within an EEM applet. It displays the applet name and the syslog message being generated. This is useful for verifying that syslog actions are working correctly.
What should I do if I get this 300-410 question wrong?
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 300-410 OSPF questions on adjacency and route selection.
What is the key concept behind this question?
OSPF neighbours must agree on key parameters.
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