FORTINET-NSE123 Nse 3 Fortigate Operational Fundamentals Practice Question
A network administrator is troubleshooting traffic passing through a FortiGate using the CLI command 'diagnose debug flow'. Before capturing traffic, what command must be executed to ensure the debug output appears in the current CLI session?
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
✓
diag debug enable
By default, debugging output is silenced in the console. The administrator must enable console debugging using 'diag debug enable'.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
diag debug console timestamp enable
Why it's wrong here
Enables timestamps on debug messages but does not turn on the debugging engine itself.
- ✗
execute debug reset
Why it's wrong here
Resets all active debug filters and counters.
- ✗
diag debug enable
Why it's wrong here
Enables the global debugging engine output to the screen. Note: 'diag debug console timestamp enable' or 'diag debug enable' is required, but 'diag debug enable' is the primary trigger.
- ✓
diag debug enable
Why this is correct
Correct. You must execute 'diag debug enable' after setting filters to see the output.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Fortinet exam blueprint
This FORTINET-NSE123 practice question is part of Courseiva's free Fortinet 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 FORTINET-NSE123 exam.