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300-410 Practice Question: Runs the following command on Router R2: R2# show…
A network engineer runs the following command on Router R2:
R2# show logging | include %SYS-5-CONFIG_I *Mar 1 00:10:15.123: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 00:12:45.678: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 00:15:30.001: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 00:20:00.999: %SYS-5-CONFIG_I: Configured from console by console
Based on this output, what is the most likely problem?
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 router is being reconfigured repeatedly from the console, which could indicate unauthorized access or a script issue.
The output shows multiple configuration changes being made from the console in a short period of time. This could indicate unauthorized access or a misconfiguration that is causing repeated configuration changes. However, the most likely problem is that the logging level is set too low, and these messages are being generated due to a loop or automated script. But the key clue is that the messages are from the console, suggesting someone is making changes repeatedly. The correct answer is that the router is being reconfigured frequently, possibly due to a configuration loop or an attacker.
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 router has a memory leak causing frequent reloads.
Why it's wrong here
The messages indicate configuration changes, not reloads.
- ✓
The router is being reconfigured repeatedly from the console, which could indicate unauthorized access or a script issue.
Why this is correct
Multiple %SYS-5-CONFIG_I messages from the console suggest repeated configuration changes, which is abnormal and could be a security issue or a misconfigured automation script.
- ✗
The logging buffer is full and messages are being overwritten.
Why it's wrong here
The output shows specific messages; there is no indication of buffer overflow.
- ✗
The syslog server is not reachable, so messages are only logged locally.
Why it's wrong here
The output does not mention syslog server configuration or reachability.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.