Quick Answer
The answer is the event cli type. This is correct because EEM’s event cli syntax uses a pattern argument with a regular expression to match a specific IOS command as it is entered, allowing the applet to trigger immediately on that CLI input. Other event types, such as event syslog, react to log messages rather than direct command entry, making them unsuitable for this purpose. On the Cisco CCNP ENARSI 300-410 exam, this concept tests your understanding of EEM event classification and configuration, often appearing in a multiple-choice trap where candidates confuse event cli with event syslog or event timer. A common memory tip is to associate “cli” directly with the command line interface—if you want to catch a command being typed, think “cli,” not “log.” Remember: pattern matches the command, not the output.
This 300-410 practice question tests your understanding of embedded event manager (eem). Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Which of the following EEM event types can be used to trigger an applet based on a specific IOS command being entered?
event syslog
Why wrong: Incorrect. 'event syslog' matches syslog messages, not CLI commands.
event snmp
Why wrong: Incorrect. 'event snmp' matches SNMP notifications or polls, not CLI commands.
event cli
Correct. 'event cli' is used to trigger on CLI commands.
event timer
Why wrong: Incorrect. 'event timer' triggers based on time, not CLI commands.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
event cli
EEM provides the 'event cli' event type to match on CLI commands. The syntax is 'event cli pattern <string>' where the pattern can be a regular expression to match the command. Other event types like 'event syslog' match syslog messages, not CLI commands.
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
For each option: why learners choose it and why it is or isn't the right answer here.
event syslog
Why it's wrong here
Incorrect. 'event syslog' matches syslog messages, not CLI commands.
event snmp
Why it's wrong here
Incorrect. 'event snmp' matches SNMP notifications or polls, not CLI commands.
event cli
Why this is correct
Correct. 'event cli' is used to trigger on CLI commands.
Related concept
Static NAT maps one inside address to one outside address.
event timer
Why it's wrong here
Incorrect. 'event timer' triggers based on time, not CLI commands.
Common exam traps
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.
Trap categories for this question
Command / output trap
Incorrect. 'event syslog' matches syslog messages, not CLI commands.
Detailed technical explanation
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.
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
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
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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FAQ
Embedded Event Manager (EEM) — This question tests Embedded Event Manager (EEM) — Static NAT maps one inside address to one outside address..
The correct answer is: event cli — EEM provides the 'event cli' event type to match on CLI commands. The syntax is 'event cli pattern <string>' where the pattern can be a regular expression to match the command. Other event types like 'event syslog' match syslog messages, not CLI commands.
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.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 18, 2026
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