- A
The BGP-5-ADJCHANGE syslog is only generated for session state changes, not for individual route updates.
Correct. The syslog message is only for session state transitions, not for prefix changes.
- B
The EEM applet must be configured with 'event bgp' to monitor BGP prefix changes.
Why wrong: EEM does not have a native 'event bgp' trigger; it relies on syslog or other methods.
- C
The next-hop-self requirement causes a BGP notification that generates a different syslog pattern.
Why wrong: Next-hop-self is a configuration issue that may cause route withdrawal, but not a session reset.
- D
The EEM applet requires the 'event manager directory' to be set for SNMP traps.
Why wrong: SNMP traps can be sent without setting a directory; the issue is the trigger event.
Quick Answer
The answer is that the BGP-5-ADJCHANGE syslog is only generated for session state transitions, not for individual route updates. This is why the EEM applet fails to trigger when a prefix is withdrawn due to a next-hop-self requirement—the BGP session remains fully established, so no ADJCHANGE message is ever logged. On the Cisco CCNP ENARSI 300-410 exam, this question tests your understanding of which syslog events EEM can reliably monitor for BGP; a common trap is assuming that any BGP change, including route withdrawals, will generate an ADJCHANGE event. Remember, ADJCHANGE is about adjacency state, not routing table content. For a memory tip: think “ADJ = adjacency, not advertisement”—if the session stays up, the applet stays quiet.
300-410 Embedded Event Manager (EEM) Practice Question
This 300-410 practice question tests your understanding of embedded event manager (eem). This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
An engineer configures an EEM applet to react to BGP prefix changes using the event syslog pattern 'BGP-5-ADJCHANGE'. The applet sends a custom SNMP trap. The BGP session between two routers is established, but when a route is withdrawn due to next-hop-self requirement for iBGP, the EEM applet does not trigger. Which is the most likely explanation?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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 BGP-5-ADJCHANGE syslog is only generated for session state changes, not for individual route updates.
The BGP-5-ADJCHANGE syslog message is generated only when the BGP session state changes (e.g., from Established to Idle or vice versa). It is not generated for individual prefix updates or withdrawals. When a route is withdrawn due to next-hop-self requirement, the BGP session remains established, so no ADJCHANGE event occurs. The EEM applet will not trigger because the syslog pattern does not match any generated message.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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 BGP-5-ADJCHANGE syslog is only generated for session state changes, not for individual route updates.
- ✗
The EEM applet must be configured with 'event bgp' to monitor BGP prefix changes.
- ✗
The next-hop-self requirement causes a BGP notification that generates a different syslog pattern.
Why it's wrong here
Next-hop-self is a configuration issue that may cause route withdrawal, but not a session reset.
- ✗
The EEM applet requires the 'event manager directory' to be set for SNMP traps.
Why it's wrong here
SNMP traps can be sent without setting a directory; the issue is the trigger event.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 300-410 NAT questions on configuration and troubleshooting.
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Embedded Event Manager (EEM) — study guide chapter
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FAQ
Questions learners often ask
What does this 300-410 question test?
Embedded Event Manager (EEM) — This question tests Embedded Event Manager (EEM) — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The BGP-5-ADJCHANGE syslog is only generated for session state changes, not for individual route updates. — The BGP-5-ADJCHANGE syslog message is generated only when the BGP session state changes (e.g., from Established to Idle or vice versa). It is not generated for individual prefix updates or withdrawals. When a route is withdrawn due to next-hop-self requirement, the BGP session remains established, so no ADJCHANGE event occurs. The EEM applet will not trigger because the syslog pattern does not match any generated message.
What should I do if I get this 300-410 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 300-410 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 18, 2026
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