hardMultiple Choice
300-410 Practice Question: Configures an EEM applet to monitor…
A network engineer configures an EEM applet to monitor redistribution events using the event syslog pattern 'IP-4-ROUTING'. The applet is intended to log when a route is redistributed from OSPF into EIGRP. The redistribution is configured without a seed metric for EIGRP, and the route is not redistributed. The EEM applet does not trigger. Which is the most likely explanation?
⚠ Common exam trap
300-410 often tests silent failures in routing protocols, so candidates assume a missing syslog means the EEM applet is misconfigured rather than recognizing the protocol never logged anything.
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
✓
Redistribution into EIGRP without a seed metric fails silently, and no syslog message is generated.
When redistributing routes into EIGRP without a seed metric (the default-metric command or a metric on the redistribute statement), EIGRP cannot compute a metric and the routes are not redistributed. Critically, this failure is silent — no syslog message is generated, so the EEM applet watching for 'IP-4-ROUTING' never fires. The absence of the log is the expected behavior, not an EEM misconfiguration.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Redistribution into EIGRP without a seed metric fails silently, and no syslog message is generated.
Why this is correct
EIGRP redistribution requires a seed metric; without one, routes are silently rejected and no syslog message fires. Since no IP-4-ROUTING event is generated, the EEM applet's syslog pattern never matches, so the applet does not trigger.
- ✗
The EEM applet must use 'event routing' to capture redistribution events.
Why it's wrong here
EEM triggers on syslog output, not on routing table events; 'event routing' is not a valid EEM event detector. It is tempting because redistribution is a routing process, and would be correct if EEM offered a routing-specific detector, which it does not.
- ✗
The syslog pattern 'IP-4-ROUTING' is incorrect; it should be 'IP-5-ROUTING'.
Why it's wrong here
The 'IP-4-ROUTING' pattern is valid; the applet fails because no syslog message is generated when redistribution is rejected for a missing seed metric. It is tempting because severity numbers look error-prone, and would be correct if the router emitted a severity-5 routing message instead.
- ✗
The redistribution is blocked by route tagging, preventing the syslog.
Why it's wrong here
Redistribution into EIGRP without a seed metric is rejected outright, so no IP-4-ROUTING syslog is generated and the applet has nothing to match. Route tagging filters routes at the redistribution boundary but still permits redistribution, so it would produce the syslog the applet watches for.
Visual reference
Quick reference
Routing Protocol Comparison
| Protocol | Metric | Max Hops | Algorithm | Type |
|---|---|---|---|---|
| RIP v2 | Hop count | 15 | Bellman-Ford | Distance vector |
| OSPF | Cost (bandwidth) | Unlimited | Dijkstra (SPF) | Link state |
| EIGRP | Composite metric | Unlimited | DUAL | Hybrid |
| IS-IS | Cost | Unlimited | Dijkstra | Link state |
| BGP | Policy / attributes | Unlimited | Path vector | Path vector |
RIP's 15-hop limit makes it unsuitable for large networks. OSPF and EIGRP dominate modern enterprise deployments.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
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.