Question 1,642 of 2,152

Embedded Event Manager (EEM) →hardMultiple ChoiceObjective-mapped

EEM BGP syslog Not Triggering on Prefix Change — Session State vs Route Update

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 The BGP session between two routers is established, but when a route is withdrawn due to next-hop-self requirement for iBGP, the EEM applet does not trigger.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.

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.

Full breakdown with real-world context →

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 This is why the EEM applet fails to trigger when a prefix is withdrawn due to a next-hop-self requirement—the BGP session remains fully established, so no ADJCHANGE message is ever logged.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.

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: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

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.
Why this is correct
Correct. The syslog message is only for session state transitions, not for prefix changes.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The EEM applet must be configured with 'event bgp' to monitor BGP prefix changes.
Why it's wrong here
EEM does not have a native 'event bgp' trigger; it relies on syslog or other methods.
✗
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: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Detailed technical explanation

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

KKey Concepts to Remember

Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.

TExam Day Tips

Underline the problem statement mentally.
Watch for words such as best, first, most likely and least administrative effort.
Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

A practitioner preparing for the 300-410 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.

What to study next

Got this wrong? Here's your next step.

Identify which 300-410 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.

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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) — Read the scenario before looking for a memorised answer..

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?

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?

Read the scenario before looking for a memorised answer.

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